ltc fiber

1. General wiring terminology in Chinese and English

A: Actuator
A: Amplifier
A: Attendance Staff Attendance
A :Attenuation
AA:Antenna amplifier
AA:Architectural Acoustics
AC:Analogue Controller
ACD:Automatic Call Distribution
/> ACS:Access Control System
AD:Addressable Detector
ADM:Add/Drop Multiplexer
ADPCM:Adaptive Differential ulse Code Molation Pulse Code Modulation
AF:Acoustic Feedback
AFR:Amplitude /Frequency Response
AGC:Automati Gain Control
AHU:Air Handling Unit
AI:Auto-iris
AIS:Alarm Indication Signal
AITS:Acknowledged Information Transfer Service
ALC:Automati Level Control
ALS:Alarm Seconds
ALU:Analogue Lines Unit
AM:Administration Mole Management Module
AN:Access Network
ANSI:American National Standards Institute American National Standards Institute
APS:Automatic Protectio ntching Automatic protection switching
ASC:Automati Slope Control
ATH:Analogue Trunk Unit
ATM:Asynchrous Transfer Mode
AU- PPJE:AU Pointer Positive Justification Management Unit Positive Pointer Justification
AU:Administration Unit Management Unit
AU-AIS:Administrative Unit Alarm Indication SignalAU Alarm Indication Signal
AUG:Administration Unit Group Management Unit Group
AU-LOP: Loss of Administrative Unit Pointer AU pointer is lost
AU-NPJE: AU Pointer Negative Justification snap-in negative pointer adjustment
AUP: Administration Unit Pointer snap-in pointer
AVCD: Auchio &Video Control Device Audio and Video Control Device
AWG: American Wire Gauge American Cable Specifications

BA: Bridge Amplifier TOP
BAC: Building Automation & Control net Building Automation and Control Network
BAM:Background Administration Mole Management Module
BBER:Background Block Error Ratio Background Block Error Ratio
BCC:B-channel Connect ControlB Channel Connection Control
BD:Building Distributor
/> BEF:Buiding Entrance Facilities Building entrance facilities
BFOC:Bayonet Fibre Optic Connector large mouth fiber optic connector
BGN:Backg round Noise
BGS: Background Sound
BIP-N:Bit Interleaved Parity N code Bit Interleaved Parity N code
B-ISDN:Brand band ISDN Broadband Integrated Services Digital Network
B-ISDN:Broad band -Integrated Services Digital Network
BMC:Burst Mode Controller
BMS:Building Management System
br /> BRI: Basic Rate ISDN Integrated Services Digital Network
BS: Base Station
BSC: Base Station Controller
BUL: Back up lighting
>
C/S: Client/Server Client/Server TOP
C:Combines Mixer
C:Container Container
CA:Call Accounting Telephone Automatic Billing System
CATV:Cable Television
CC:Call Control
CC:Coax cable
CCD:Charge coupled devices
CCF:Cluster Contril Function Control Function
CD:Campus Distributor Building Group Distribution Frame
CD:Combination detector Temperature and smoke composite detector
CDCA:Continuous Dynamic Channel Assign Continuous dynamic channel assignment
CDDI:Copper Distributed Data contract cable distributed data interface
CDES:Carbon dioxide extinguisbing system Carbon System
CDMA:Code Division Multiplex Access
CF:Core Function
CFM:Compounded Frequency Molation Frequent companded modulation
CIS:Call Information System Information System
CISPR:Internation Special Conmittee On Radio Interference
CLNP:Connectionless Network Protocol
CLP:Cell Loss Priority Cell Loss Priority
/> CM:Communication Mole Communication Module
CM:Configuration Management
CM:Cross-connect Matrix
CMI:Coded Mark Inversion
CMISE :Common Management Information Service Common Management Information Protocol Service Unit
CPE:Convergence protocol entity Convergence Protocol Entity
CR/E:card reader/Encoder (Ticket reader) Card reader/coder
CRC:Cyclic Rendancy Check Cyclic Redundancy Check
CRT:Cathode Ray Tabe Display, Monitor, Cathode Ray Tube
CS: Convergence service Convergence Service
CS:Cableron Spectrum Legacy Blocking Technology
CS:Ceiling Screen smoke wall
CS:Convergence Sublayer convergence sublayer
CSC:Combined Speaker Cabinet sound combination
CSCW:Computer supported collaborative work computer supported collaborative work
/> CSES: Continuius Severely Errored Second
CSF: Cell Site Function Control of Single Base Station Function
CTB: Composite Triple Beat
CTD: Cable Thermal Detector Cable Type Linear temperature detector
CTNR:carrier to noise ratio
CW:Control Word

D:Directional TOP
D:Distortion Degree
D:Distributive
DA:Distribution Amplifier
DBA:Database AdministratorDatabase Manager
DBCSN:Database Control System NucleusDatabase Control System Core
DBOS:Database Organizing System Database Organization System
DBSS:Database Security System
DC:Door Contacts door sensor
DCC:Digital Communication Channel
DCN:Data Communication Network
DCP- I:Distributed Control Panel -Intelligent Intelligent Distributed Controller
DCS:Distributed Control System
DDN:Digital Data Network
DDS:Direct Dignital Controller
DDW:Data Describing Word
DECT:Digital Enhanced Cordless Telecommunication
DFB:Distributed Feedback
DID:Direct Inward Dialing Incoming call to extension user
DLC:Data Link Control Layer
DLI:DECT Line Interface
DODI:Direct Outward Dialing One One Dial Tone
DPH:DECT Phone
DRC:Directional Response Cahracteristics
DS:Direct Sound
DSP:Digital signal Processing
DSS:Deiision Support System
DTMF:Dual Tone Multi-Frequency
DTS:Dual-Technology Sensor
DWDM:Dense Wave-length Division Multiplexing
DX C:Digital Cross-Connect

E:Emergency lighting TOP
E:Equalizer
E:Expander
EA-DFB: Electricity Absorb-Distributed Feedback
ECC:Embedded Control Channel
EDFA:Erbium-Doped Fiber Amplifier
EDI:Electronic Data Interexchange
br /> EIC:Electrical Impedance Characteristics
EMC:Electro Magnetic Compatibiloty
EMI:Electro Magnetic Interference
EMS:Electromagnetic Sensitibility
EN :Equivalent Noise
EP:Emergency Power Emergency Power
ES:Emergency Sooket Emergency Socket
ES:Evacuation Sigvial Evacuation Lighting
ESA:Error SecondA Error SecondA Type A
ESB:ErrorSecondB Errored Second Type B
ESD:Electrostatic Discharge Electrostatic Discharge
ESR:Errored Second Ratio Errored Second Ratio
ETDM:Electrical Time Division MultiplexingElectrical Time Division Multiplexing
/> ETSI:European Telecommunication Standards Institute
F:Filter Filter TOP
F AB:Fire Alarm Bell
FACU:Fire Alarm Control Unit
FC:Failure Count
FC:Frequency Converter
FCC: Fire Alarm System
FCS:Field Control System Fieldbus
FCU: Favn Coil Unit Fan Coil Unit
FD:Fire Door
FD:Flame Detector
FD: Floor Distributor
FD: Frequency Dirsder
FDD: Frequency Division Dual Frequency Division Duplex
FDDI: Fiberdistributed Data Interface Fiber Distributed Data Interface.
FDDIF: Fiber Distributed Data Inferface Fiber Distributed Data Interface
FDMA: Frequency Division Multiple Access
FE:Fire Extirguisher
FEBE:Far End Block Error
FEXT:Far End Crosstalk
FFES:Foam Fire Extionuishing System
FH:Fire hydrant
FI:Fee Indicator
FL:Focal Length
FL:Fuzzy Logic
FM:Faiilt Management
FPA: Fire Public Address Fire Incident Broadcast
FPD:Fire Public Derice Fire Facility
FR:Frequency Response Frequency Response
FRD:Fire Resis tamt Damper Fire Damper
FRS:fire resistant shutter Fire Roll Curtain
FSK: Frequency Shift Keying
FSU: Fixed Subscriber Unit
FTHD: Fixed temperatute Heat Detector
FTP: Foil Tnisted Pair Metal Foil Twisted Pair Cable
FTTB: Fiber To The Building Fiber To The Building
FTTC: Fiber To The Curb Fiber To The Curb
FTTH: Fiber To The Home Fiber To The Home
FW:fire Wall Firewall
FWHM:Full Width Half Maximum Pulse width at half maximum

PACR: Attonation to Crosstalk Ratio

GAP:Gaussian ( filtered)Frequency Shift Keying Gaussian Filter Frequency Shift Keying TOP
GBS:Glass Break Sensors Glass Break Sensors
GC: Generic Cabling Integrated Cabling
GIB: Generic Information Block General Information Module
GNE: Gateway Network Element Gateway
GSM: Global System for Mobile communications Global System for Mobile Communications
H :Hybrid Hybrid TOP
HCBS:High C Bus Servers Unit
HCS:Higher order Connection Supervision
HD:Heat Detecter
HDB3:High Density Bipolar of order 3code
HDLC:High Data Link Control
HDLC:High Digital Link Control
HDSL :High-bit -rate Digital Subscriber Link
HDTV:High Definition Television
HEC:Header Ervor Control:Header Error Control Field
HEMS:High -level Entity Management system Advanced Entity Management System
HFC: Hybrid fiber coax fiber-coaxial cable hybrid system
HGRP: Home Optical Network Huawei’s proprietary protocol
HIFI: High Fidelity High fidelity
HIPPI:High Performance Parrallel Interface
HMP:Host monitoring protocol
HOA:High Order Assembler
HOAPID:High Order Path Access Point Identifier HOI: High Order Interface
HONET: Home Optical Network Trademark of Huawei Integrated Services Access Network
HO-TCM: High Order Tandem Connection Monitor High order path serial connection monitoring
HOVC:High Order Virtual Container Virtual Container
HPA:High order path AdaptationHigh order adaptation
HPC:High order path ConnectionHigh order path connection
HPOM :High-order Path Overhead MonitorHigh-order path overhead monitor
HPP:High-order path ProtectionHigh-order path protection
HP-RDI:Higher order path-Remote Defect IndicationHigh-order path reception defect indication
HP-REI:Higher order Path-Remote ErrorIndicationHigher order path remote error indication
HPT:High order path TerminationHigher order path termination
HRDS:Hypothetical Reference Digital Section Hypothetical reference number field
HSUT:High -order path Supervision Unequipped Termination
HVAC:Heating Ventilation Air Conditioning
HWS:Hot Water Supply

I:Interference TOP
IA:Intruder Alarm
ICMP:Internet Control Message Protocol
IDC:Insucation Displacement Connection Connector
IDS:Instrial Distribution System
IFC:Intelligent Fire Controller
ILD:Inject Light Diode
IM:Impedance Matching Impedance Matching
IMA: Interactive Multimedia Association Interactive Multimedia Protocol
IM-DM: Intensity Molation-Direction Molation Direct Intensity Modulation
IN: Information Network Information Network
IO: Information Outlet Information Socket
IOS:Intelligent Out Station
IPEI:International Portable International Mobile Equipment Identification Number
IPTU:Indoor Pan &Tilt Unit Indoor Pan & Tilt PTZ
IPUI:International Portable User IdentityInternational Mobile Subscriber Identification Number
ISD: Ionization Smoke Detector
IT: Information Technology
ITU: International Telecommunications Union
ITU-T: Formerly known as CCITT, it is one of the International Telecommunications Union Committee
ITV:Interactive Tevevision Interactive TV
JIT-Discussion conference system Impromptu speech system
L:Lens camera lens TOP
LAN:Local Area Network
LAPB: Link Access Procere-Balanced Link Access Procedure —- Balance
LAPD:Link Access Procere D-channel D-channel Link Access Protocol
LCD:Liquid Crystal Display
LCL :Longituchinal Conrorsion Loss
LCN:Local Communication Network
LCS:Lower order Connection SupervisionLower order connection monitoring
LD:Laser Diode excitation diode
LE: Local Exchange Local Exchange Network
LED: Light Emittirng Diode Light Emitting Diode
LIU: Lightguide Interconnection Unit Optical Fiber Interconnection Unit
LLC: Logic Link Control Layer
LLME: Low Layer Management Entity
LM: Lerel Molation Level Adjustment
LNA: Low Noise Amplifier
LOF: Loss Of Frame Frame Loss
LOI: Low Order Interface Low Order Interface
LOP: Loss Of Pointer Loss of Pointer
LOS: Loss Of Signal Loss of Signal
LO-TCM: Low Order Tandem Connection Monitor Low Order Channel Tandem Connection Monitor
LOVC: Low Order Virtual Container Low-order virtual container
LPA:Lower order qath AdaptationLow-order channel adaptation
LPC:Lower order Path ConnectionLow-order channel connection
LPOM:Low-order Path Overhead Monitor low Order Path Overhead Monitor
LPP:Low-order Path Protection Low-order Path Protection
LPT:Lower order Path TerminationLow-order Path Termination
LSBCM:Laser Base Current Monitor Laser Bias Current Monitor
LSUT:Low -order path Supervision Unequipped
LTC:Londline Trunk Coutroller
LU:Line Unit

MAC:Medium Access Control Layer TOP
MBMC:Multiple Burst Mode Controller
MCF:Message Communication Function
MD:Mediation Device
MFPB:Multi-Frequency Press Button
MIB:Management Information Base
MIC: Mediu Interface Connector
MIO:Multiuser Information Outlet
/> MLM: Multi-Lo ngitudinal Mode
MM:Mobile Management
MMDS:Maltichanned Microware Distribution System
MMO:Multionedia Outlet
MN-NES:MN- Network Element System Network Element Management System
MN-RMS:MN-Region Management System Network Management System
MO:Managed Object Management Target
MSA:Multiplex Section Adaptation Multiplex Section Adaptation
MS-AIS:Multiplex Section-Alarm Indication Signal Multiplex Section Alarm Indication Signal
MSOH:Multiplex Section Overhead Multiplex Section Overhead
MSP:Multiplex Section Protection Multiplex Section Protection
MS-RDI :Multiplex Section-Remote Defect Indication Multiplex Section Remote Defect Indication
MST:Multiplex Section Termination Multiplex Section Termination
MSU:Multi-Subscriber Unit Multi-User Unit
MTIE:Maximum Time Interval Error Maximum Time Interval Error
MUX: Multiplexer Flexible Multiplexer
NDF: New DataFlag New Data Flag
NDFA: Niobium-Doped Fiber Amplifier Niobium-Doped Fiber Amplifier
NE: Network Element Element
NEXT: Near End Crosstalk
NMS: Network Management System
NNE: Non-SDH Network Element Non-SDH Network Element
NNI: Network Node Interface Network Node Interface
NPI: Null Pointe r Indication invalid pointer indicates
NWK:Network Layer
NZ-DSF:Non Zero-Dispersion Shift Fiber

OAM&P:Operation Administration, Maintenance and Provisioning operation , Management, Maintenance and Preset
OAM: Operation, Administration and Maintenance
OBFD: Optical Beam Flame Detector
OC-N:Optical carrier level -N Optical Carrier Stage N
OCR: Optical Character Recogmition Optical Character Recognition
OEIC: Optoelectronic Integrated Circuit Optoelectronic Integrated Circuit
OFA: Optical Fiber Amplifier Optical Fiber Amplifier
OHP: Overhead Processing Overhead Processing
OLT:Optical Line Terminal Optical Fiber Line Terminal
ON: Orerall Noise Total Noise
ONU: Optical Network Unit Optical Network Unit
OOF: Out Of Frame Frame Asynchronous
OOP: Object Oriental Programming Design
OS: Operating System
OSC: Oscillator Oscillator
OSI: Open Systems Interconnection
OTDK: Optical Time Doman Reflectometer Optical Time Domain Reflectometer
/> OTDM:Optical Time Division Multiplexing
PA:Power Amphfier Power Amplifier TOP
PA:Power Amplifier Power Amplifier
PABX:Private Auntomatic Branch Exchange Program-controlled digital automatic exchange
Paging : Wireless Calling System
PAL: Pinhole Alc Lons Pinhole Automatic Brightness Control Lens
PARK: Portable Access Rights Key Mobile User Access Rights Identification Code
PAS: Public Address System Public Address Audio system
PBX: Private Brancn exchange Program-controlled user exchange
PC: Pan unit&control PTZ and PTZ controller
PC: Proximinty Card
PCM: Pulse Code Molation Modulation
PCS:Personal Communication Service
PDFA:Praseodymium-Doped Fiber Amplifier
PDH:Plesiochronous digital Hierarchy
PDN:Public data networ k Public Data Network
PDS:Premises Distribution Systemn Building Structured Cabling System
PF:Pressurization Fan Pressurization Fan
PG:Pressure Gradient Differential Pressure
PID:Passire Infrared Detector Passive Infrared Sensor
PJE:Pointer Justification Event Pointer Justification Event
PLC:Programmerable Logic Controller
PM:Power Matching
PMS:Prooerty Management system Resource Management System
PO:Pressure Operated
POH:Path Overhead Channel Overhead
PPI:PDH Physical InterfacePDH Physical Interface
Preamplification: Preamplification
PRI: Primany Rate Interface Basic Rate Interface
PRM:Patter Recogniton Method
PSC:Protectiontching Count Protection Switching Count
PSD:Photoelectric Smoke Detector
PSD:Protectiontching Duration Protection Switching Duration
PSK:Phase Shift Keying
PSNT: Ponver Sum Next Integrated Near-End Crosstalk
PSPDN:Packettched Public Data Network
PSTN:Publictch Telephone Network Public switched telephone network
PU:Pick Up Pickup
PVC:Polyvingl chloride
PVCS:Public video conferring system Public video conference system
PWS:Power system Power System

ITU-T:International Telecommunication Union-Telecommunication SectorInternational Telecommunication Union-Telecommunication Standard Division R:Receiver Terminal Decoder TOP
R:Reverberator Reverberator
RC:Radio Communication Mobile Communication
RC:Room’s Coefficient
RCU:Remote Control Units Terminal Controller
RDI:Remote Defect Indication
REG:Regenerator
Resolution: Resolution
RF: Radio Frequency
RHE: Romote Head End
RMC: Repeater Management Controller Antenna Channel Controller
RMS: Root Mean Square Root value
RMU:Rendancy Memory Unit Redundant memory
RORTD:Rate Of Rise Thermal Detector
RR:Reverberation Radius
RS:Reflected sound Reflected Field
RSOH:Regenerator Section Ouerhead Regenerator Section Overhead
RSSI:Radio Signal Strength Indicator
RST:Regenerator Section Termination Regenerator Section Termination
RSU:Remote Subscriber Unit Remote Subscriber Unit
RT:Real Time
RT:Reverberation Time
RWS:Remote Workstation
S:Sprinkler TOP
S:Stereo Dual Channel
S:Strike Electronic Door Lock
SAA:Sound Absorption Ability
SAR:Segmetation and reassembly sublayer
SATV: Sate Llite Satellite TV
SBS: Synchronous Backbone System Synchronous Information Backbone System
SBSMN: SBS SBS Management Network Series Transmission Equipment Network Management System
SC: Smart Card
SC: Subscriber Connector (Optial Fiber Connector)
SC: Supervisong Center Central Station Monitoring Center Management Center
SCADA: Monitoring and Data Acquisition Software
SCB: System Control Board System Control Board
SCC: System Control&Communication System Communication Control
SC-D:Saplex sc commector Dual ISC Connector
SCD:Sound Console Desk Dispatching Desk
SCPC:Single Chnanel Per Carrier Satellite Backhaul Line
SCS:Stractured Cabling System Structured Cabling System
SD:Signal Degraded
SD:Smoke damper
SD:Smoke Detector
SD:System Distortion
SDCA:Synchronization DCA synchronization Data Communication Adapter
SDMA:Spaee Division Multiplex Access
SDXC:Synchronous Digital Cross Connect
SE:Sound Energy
SEC:SDH Equipment Clock SDH Equipment Clock
SED:Sound Energy Density
SEEF:Smoke Extractor Exhaust Fan
SEMF:Synchronous Equipment Management Function
SES:Severely Errored Second Serious Error Seconds
SESR:Severely Errlred Second Ratio Serious Error Second Ratio
SETPI:Synchronous Equipment Timing Physical Interface Synchronous Equipment Timing Physical Interface
SETS:Synchronous Equipment Timing Source Synchronous Equipment Timing Source
br /> SF: Spur Feeder Branch Line
SF: Subscribers Feeder Subscriber Line
SFN: Sound Field Nonunifornity Sound Field Nonuniformity
SFP: Sound Field Processor Sound Field Processor
SI:Sound Installation Audio Equipment
SI:Sound Insulation
SICS:Simultaneous Interpretation Conference system Simultaneous Interpretation System
SIPP:Service Interface and protocol processing unit
SLC:Sate llite Commumication
SLI:Synchronous Line Optical Interface Synchronous Line Optical Interface
SLIC:Subscriber Line Interface ControllerSubscriber Line Interface Controller
SLM:Signal Label Mismatch Signal Label Mismatch Equipped with
SM: Synchronous Multiplexer
SMF: System management function
SMS: SDH Management Sub -Network SDH management subnet
SNA: System Network

2. Which country does China Telecom have a joint venture with?

In 2008, China Telecom accelerated the pace of overseas market expansion. In order to support American companies to actively expand the American market and expand the scale of business development , to enhance market competitiveness. In 2008, it invested 20 million US dollars in American companies, and the total investment in American companies reached 43.04 million US dollars. After the American company received new investment, it intensified its network construction in the United States, built a Seattle node, upgraded and expanded the backbone transmission network, set up a new sales representative in Seattle, and proposed to set up a branch in Brazil and won the group’s proposal. Company approval. In 2008, the Hong Kong company established a cooperation node in Japan and Taiwan, and set up new sales agents in Taiwan and Vietnam; the European company set up a new UAE representative office and a new ChinaNet node in Frankfurt.
China Telecom has formed an overseas expansion pattern with American companies, Hong Kong companies and European companies as the main bodies, and is responsible for overseas market expansion in the Americas, Asia, Oceania, Europe, the Middle East, and Africa respectively. The overseas companies have a reasonable business structure, rapid customer growth and high customer quality, showing a healthy and rapid development trend. It has established marketing outlets in more than 14 countries and regions around the world, focusing on providing various communication and information services for multinational enterprise customers and Chinese enterprises and individuals “going out”.
In 2008, China Telecom continued to explore new overseas business expansion by exporting operation consulting services overseas. Actively participated in the operation and management project of Movicel Company in Angola; promoted the cooperation between Shanghai Telecom and ZTE to participate in the operation and maintenance outsourcing project of WANA Company in Morocco, and provided necessary business guidance. With the continuous expansion of overseas expansion and the continuous improvement of China Telecom’s position in the international telecom market, its influence in overseas markets and customers is also increasing.
China Telecom has established bilateral voice direct circuits with 69 companies in 40 countries and regions around the world. Business partners are mainly distributed in Asia, North America, South America, Europe, Africa, Hong Kong, Macao and Taiwan, and can provide services to countries around the world Telephone voice service with area. The types of voice services provided include IDD, ISDN, HCD, ITFS, UIFS, VPN, calling card, etc.
China Telecom has carried out Internet cooperation with 85 overseas operators around the world, and the interconnection bandwidth with overseas operators has reached 339G. The international status of CHINANET has been significantly improved, and it has become the top Internet network in the Asia-Pacific region and even the world.
China Telecom has carried out data cooperation with 42 operators in 24 countries and regions around the world, providing data services that reach the world, including IPLC, FR, ATM, IPVPN and corresponding value-added services.
China Telecom has further strengthened its external cooperation in data services, attracting more overseas operators to choose China Telecom’s network to conduct global networking for their multinational customers.�It also further strengthens China Telecom’s ability to directly serve “going out” Chinese-funded enterprises and businessmen.
In 2008, China Telecom smoothly undertook the roaming partnership of China Unicom’s original 21 C network operators and service providers, and successfully realized the smooth transition of C network international roaming. On the basis of the existing CDMA international roaming cooperation, it will further expand the new C network roaming partners and service scope, and realize the roaming service with seamless global coverage through CtoC and CtoG.
Network cooperation
China Telecom has built 18 terrestrial optical cable systems and 4 international submarine optical cable systems, covering all directions of the world, and the export capacity of international transmission networks in all directions of the world has reached 625G. There are two submarine cable landing stations, Chongming Station and Shantou Station. The three major submarine cables in the Asia-Pacific region, SEA-ME-WE3, Sino-US Optical Cable, and Asia-Pacific No. 2 submarine optical cable are all landed at these two stations. The cable landed at Chongming Station.
In 2008, the international network capacity building was further strengthened. China Telecom led the launch of the Trans-Pacific Direct Optical Cable System (TPE) and put it into operation. The existing 150G was increased to 235G; the 30G system of Sino-Russian No. 2 optical cable in the European direction was successfully put into operation at the end of 2008; in 2008, the system expansion project of Vietnam and VTI, VIETTEL and EVN was completed, and the expansion of the ETL system with Laos and the first cooperation with LTC were started. Two optical cable routing construction projects; from 2006 to 2008, the optical cable connection with Mongolia Mobile (Mobicom) and Mongolia Railcom (Railcom) was completed successively, and the system capacity in Mongolia reached 15G, and the network scale was far ahead of other domestic operators; cooperation with Hutchison The Guangzhou-Shenzhen-Hong Kong Western Corridor Transmission Project was put into operation in August. The third route of the Western Corridor between Mainland and Hong Kong has been added. Only China Telecom owns this route.
China Telecom has also carried out extensive cooperation with operators in neighboring countries and regions, and has built a new China-Russia optical cable (TEA), a China-Vietnam cable, a China-Myanmar cable, a China-Laos cable, a China-Kazakhstan cable, a China-Russia, China-China A batch of cross-border terrestrial optical cable systems, such as Mongolia, China-India optical cable, mainland-Hong Kong, mainland-Macao, TAE optical cable connecting Eurasia, and CSC optical cable connecting Southeast Asia. China Telecom actively responded to the government’s call, participated in the construction of the “Mekong River Information Highway” and the “Shanghai Cooperation Organization Information Highway”, vigorously expanded the transfer business, and consolidated its position as a communication transfer center in the Asia-Pacific region. China Telecom has become a gateway for operators from all over the world to communicate with operators in China’s neighboring countries and regions, and has become a bridge connecting five continents including Europe, Asia and Oceania.
The total export bandwidth of international and Hong Kong, Macao and Taiwan business is 411G, the external interconnection bandwidth is 339G, and the CN2 international export transmission bandwidth reaches 21G.

3. How to choose a high-quality fiber-optic network card

Fiber-optic network card refers to a fiber-optic Ethernet adapter, or fiber-optic network card for short. network switch connection. According to the transmission rate, it can be divided into 100Mbps, 1Gbps, 10Gbps, according to the motherboard socket type, it can be divided into PCI, PCI-X, PCI-E (x1/x4/x8/x16), etc. ST et al.
This article mainly describes how to choose an optical fiber network card, such as: LR-Link brand network card, the PCB is all 6-8 layers of PCB, the surface is sprayed with tin, and the immersion gold is 5mil. Strict differential wiring requirements, the length is controlled within the range of 5mil; good component layout ensures that the whole board is simple and elegant; all components are made of regular original materials, and the power supply parts are all selected from American TI and LTC power chips to ensure the stability of the power supply sex. All finished products of the network card have undergone 24-hour live work aging at a temperature of 90 degrees, and then have undergone strict testing methods to ensure high stability and high reliability. The qualification rate of each product is 100%.
Product selection steps
1. First understand the specifications of the product you need, then understand the performance and workmanship of the product
2. Then understand the slot gold finger and component layout of the product
/>3. Then understand the circuit design and anti-counterfeiting label of the product
4. Then understand the network interface of the optical fiber network card
5. Then understand the outer packaging of the product
6. Finally, understand the relationship between the product and the motherboard. The corresponding slot type, and then choose the most suitable fiber optic network card.

4. How to translate feeder bay, from a paper on remote monitoring, probably an electrical component.

feeder bay

5. Yamaha UR242 with what words should be put away

4 x 2 USB 2.0 audio interface, 2 x D -PRE mic preamp, supports 192 kHz and includes MIDI interface
Product information is subject to change without notice. The information on the website is for reference only, and the actual product shall prevail.
Steinberg’s latest audio interface ur242 Yamaha sound card experience
Steinberg’s UR series has always been positioned as portable, practical and cost-effective, and this UR242 is no different. In fact, the biggest selling point of Steinberg’s sound card is that it can integrate with its own workstation software.The combination of beauty and beauty, so for Cubase and Nuendo fans, Steinberg’s sound card is still very attractive.
When I got this latest UR242 sample, it had not been released on the official website, so Mr. Tang repeatedly asked not to disclose his news online. Now we can finally introduce this new product in detail. Steinberg’s UR series has always been positioned to be portable, practical and cost-effective. The same is true for this UR242. Its positioning is actually a product between the UR44 and UR22, with 4 inputs, 2 outputs, and 2 mic preamps. , comes with DSP effects, can be connected to iOS devices, and can be recorded internally. Standard MIDI port. 24/192 sample rate. The biggest selling point of Steinberg’s sound card is that it can be perfectly integrated with its own workstation software, so for Cubase and Nuendo fans, Steinberg’s sound card is still very attractive
The positioning of the UR series should be for personal music studios , It is portable for musicians and not used in professional recording studios, so this UR242 still has no digital port and ADAT optical port, but to be honest, these ports are used very little or not at all for most users. Users who need digital mixing consoles will not buy such a small sound card. Therefore, spending the cost on some functions that are not used at all and discounting the sound quality is not the best solution. Even so, the sound quality, ASIO performance and stability of UR242 are still very good, which can be said to be the best among competing products at the same price. Of course, Steinberg also has its own professional audio interface products, such as professional rack equipment like MR816 with ADAT.
Like other models in the UR series, the Yamaha D-PRE mic preamp is used, and the two mic preamps have independent gain knobs and PAD attenuation buttons. However, the 48V phantom power supply means that two mic preamps share a phantom power button, but generally it seems that there is rarely a capacitor and a moving coil used in this way, so most of the current sound cards share a general phantom power button. The input ports on the front panel of the UR242 are designed with multi-purpose jacks, which can be inserted into either a Canon or a large three-core or two large guitar cores. There is a HI-Z button on the left side of the first input, as shown in Figure 9. After pressing it, it switches to the high-impedance instrument input, which can be directly inserted into the guitar, bass and other electric instruments for recording. It is worth mentioning that the headphone output of the UR242 also has an independent level control knob, which has its own independent channel and is not controlled by the main output. The quality of the amp is not bad, the sound is very clean, but the thrust is average, it is difficult for high-impedance headphones to directly push, and the performance of low-impedance headphones is still very good.

6. Can you tell me the Chinese and English of sports terms

Aquatics Water Sports Freestyle Freestyle Backstroke Backstroke Breastroke Breaststroke Butterfly Butterfly Archery Bow and Arrow Athletics Track and Field Sprint Sprint Race walk Walking Hurdle Hurdle Relay Relay Discus throw Discus Throw Javeline Javelin Throw Hammer Throw Hammer Throw Long Jump Long Jump Triple Jump Triple Jump Pole Vault Pole Vault Badminton Badminton Baseball Baseball Basketball Boxing Boxing Canoe/kayak Canoe/Multiple Race Cycling Cycling Equestrian Equestrian Fencing FencingFootball SoccerGymnastics GymnasticsBalance beam Balance beamHorizontal barHorizontal barParallel barsParallel barsPommel horse Pommel Horse Rings Rings Trampoline Jumping bedUneven bars uneven barsHandballHockey Hockey Judo Judo Pentathlon Pentathlon Rowing Sailing Sailing Shooting Shooting Softball SoftballTable tennis Table tennis Taekwondo Taekwondo Tennis Tennis Volleyball Volleyball Weightlifting Weightlifting Wrestling Wrestling

7. What chip has the same performance as SSOP20

Electronic components, also known as electronic chips, semiconductor integrated circuits, widely It is used in various electronic and electrical equipment.
Package form:
Package form refers to the shell used to install semiconductor integrated circuit chips. It not only plays the role of mounting, fixing, sealing, protecting chips and enhancing electrical and thermal performance, etc. In addition, it is also connected to the pins of the package shell with wires through the contacts on the chip, and these pins are connected to other devices through the wires on the printed circuit board. An important indicator to measure whether a chip packaging technology is advanced or not It is the ratio of the chip area to the package area. The closer the ratio is to 1, the better.
The package has roughly gone through the following development process:
Structure: TO- >DIP->LCC->QFP->BGA ->CSP;
Material: metal, ceramic->ceramic, plastic->plastic;
Pin shape: long lead straight->short lead Or leadless mounting -> ball bump;
Assembly method: through-hole mounting -> surface mounting -> direct mounting.
English abbreviation
English full name
Chinese explanation
Picture
DIP
Double In-line Package
Double In-line Package. One of the plug-in packages, the pins are from the packageBoth sides are led out, and the packaging materials are plastic and ceramic. DIP is the most popular plug-in package, and its application range includes standard logic IC, memory LSI, microcomputer circuit, etc.
PLCC
Plastic Leaded Chip Carrier
PLCC package, the shape is square, 32-pin package, there are pins all around, the size is much smaller than the DIP package. PLCC package is suitable for SMT surface mounting technology to install wiring on PCB, with external dimensions The advantages of small size and high reliability.
PQFP
Plastic Quad Flat Package
The distance between the chip pins of the PQFP package is very small, the pins are very thin, generally large-scale or ultra-large-scale integrated circuits In this package form, the number of pins is generally more than 100.
SOP
Small Outline Package
From 1968 to 1969, Philippe developed a small outline package (SOP). Later gradually derived SOJ (J-pin small outline package), TSOP (thin small outline package), VSOP (very small outline package), SSOP (shrinked SOP), TSSOP (thin shrink SOP) and SOT (small Outline Transistor), SOIC (Small Outline Integrated Circuit), etc.

www.maxim-ic.com
Analog Filter Optical Fiber Communication High Speed ​​Signal Processing and Conversion Wireless/RF
Light Communications, Analog Display Support Circuits High Frequency Analog and Mixed Signal ASICs
Digital Converters, Interfaces, Power Management, Battery Monitoring DC/DC Supply Voltage References
MAXIM prefix is ​​”MAX”. DALLAS is “MAX” DS” at the beginning.
MAX××× or MAX××××
Description: 1 suffix CSA, CWA where C means ordinary grade, S means surface mount, W means wide body surface mount.
2 Suffix CWI means wide body surface mount, EEWI wide body industrial grade surface mount, suffix MJA or 883 is military grade.
3 CPA, BCPI, BCPP, CPP, CCPP, CPE, CPD, ACPA suffixes are all common DIP.
For example MAX202CPE, CPE ordinary ECPE ordinary with antistatic protection
MAX202EEPE industrial grade antistatic protection (-45℃-85℃) Description E means antistatic protection
MAXIM number Arrangement and classification
1 prefix simulator 2 prefix filter 3 prefix multiplexer
4 header amplifier 5 header digital to analog converter 6 header voltage reference
7 header voltage conversion 8 header resetter 9 header comparator
DALLAS naming convention
For example DS1210N.S. DS1225Y-100IND
N=Industrial Grade
S=Surface Mount Wide Body MCG=DIP Seal
Z=Surface Mount Wide Body MNG=DIP Industrial Grade
IND= Industrial QCG=PLCC package Q=QFP
The following is the naming convention of MAXIM:
Three letter suffix:
Example: MAX358CPD
C = temperature range
P = package Type
D = Number of Pins
Temperature Range:
C = 0°C to 70°C (Commercial)
I = -20°C to +85°C (Industrial)
E = -40℃ to +85℃ (Extended Industrial Grade)
A = -40℃ to +85℃ (Aviation Grade)
M = -55℃ to +125℃ (Military Grade) )
Package Type:
A SSOP(Shrink Outline Package)
B CERQUAD
C TO-220, TQFP(Thin Quad Flat Package)
D Ceramic Copper Top Packages
E Quarter Small Outline Package
F Ceramic Flat Pack
H Module Package, SBGA (Super Ball Grid Array, 5×5 TQFP)
J CERDIP (Ceramic Dual In-Line)
K TO-3 Plastic Land Grid Array
L LCC (Leadless Chip Carrier Package)
M MQFP (Metric Quad Flat Package)
N Narrow Body Plastic DIP
P Plastic DIP
Q PLCC (Plastic Leaded Chip Carrier)
R Narrow Body Ceramic DIP (300mil)
S Small Outline Package
T TO5,TO-99,TO-100
U TSSOP,μMAX,SOT
W Wide Body Small Outline Package (300mil)
X SC-70 (3 feet, 5 feet, 6 feet)
Y Narrow Copper Top Package
Z TO-92,MQUAD
/D Die
/PR Enhanced Plastic
/W Wafer
www.analog.com
DSP Signal Processor Amplifier Industrial Devices Communication Power Management Mobile Communication
Video/Image Processors and other Analog A/DD/A Converters Sensor Analog Devices Most ADV”, but also “OP” or “REF”, “AMP”, “SMP”, “SSM”, “TMP”, “TMS” and so on.
Description of the suffix: 1, J in the suffix means Civil products (0-70℃), N means ordinary plastic seal, suffix with R means surface mount.
2, The suffix with D or Q means ceramic seal, industrial grade (45℃-85℃). Suffix The H in the middle represents a round cap.
3, SD or 883 in the suffix is ​​a military product.
For example: JN DIP package JR surface mount JD DIP ceramic seal
www.ti.com
DSP Embedded controllers such as signal processors High-performance operational amplifier ICs Memory A/DD/A
Analog device conversion interface ICs, etc. 54LS military series CD4000 military series
Industrial/civil meter microcontrollers, etc.
TI product naming rules: SN54LS×××/HC/HCT/ or suffix description in SNJ54LS/HC/HCT:
SN or SNJ means TI brand
SN military standard, with N means DIP package, With J means DIP (doubleIn-line plug), with D for surface mount, with W for wide body
SNJ military grade, the latter suffix F or /883 for military grade that has been tested.
CD54LS×××/HC /HCT:
1, no suffix means Prussian grade
2, suffix with J or 883 means military grade
CD4000/CD45××:
suffix with BCP or BE is military grade
The suffix with BF belongs to the general military grade
The suffix with BF3A or 883 belongs to the military grade
TL×××:
The suffix CP ordinary grade IP industrial grade suffix with D is surface mount
br /> The suffix with MJB, MJG or with /883 is military grade
TLC means common voltage TLV low power consumption voltage
TMS320 series belongs to DSP device, MSP430F microprocessor
BB product name Rules:
prefix ADS analog device suffix U surface mount P is DIP package with B means industrial grade
prefix INA, XTR, PGA etc. means high precision op amp suffix U surface mount P means DIP PA means high precision

INTEL product naming rules: N80C196 series are all microcontroller prefixes: N=PLCC package T=industrial grade S=TQFP package P=DIP package KC20 main frequency KB main frequency MC represents 84 lead angles TE28F640J3A-120 Flash memory TE=TSOP DA=SSOP E=TSOP www.issi.com SRAM, SDRAM, EDO/FPM DRAM, EEPROM, 8051 series MCU, ASIC and voice chips start with “IS” For example: IS61C IS61LV 4× means DRAM 6× means SRAM 9× means EEPROM Package: PL=PLCC PQ=PQFP T=TSOP TQ=TQFP High Performance Analog Devices Voltage Reference Operational Amplifier D/A Converter Power Supply and Motor Control Circuits Prefixed with Product Name LTC1051CS CS means Surface Mount LTC1051CN8 CN stands for DIP package with 8 pins www.amd.com FLASH Flash memory microprocessor dual port RAM First in first out device FIFO High speed static memory SRAM Fast logic device FCT Low power consumption high speed TTL series such as 74FCT16XXX series IDT products are generally Description of the . suffix at the beginning of IDT: 1 , TP in the suffix is ​​a narrow body DIP. 2, P in the suffix is ​​a wide body DIP. 3, and J in the suffix is ​​PLCC. For example: IDT7134SA55P is DIP package IDT7132SA55J is PLCC IDT7206L25TP is DIP

8. Information about LED controller

Hello!
You must first understand:
1. The working characteristics of LED.
2. Why do LEDs need to be added with a controller.
In our lives, the application and promotion of LEDs in all walks of life from lighting, display, and advertising are more and more.
Since the concept of LED is relatively new at this stage, there is no perfect standard in the industry application. At the same time, due to the characteristics of DC drive and voltage sensitivity of the LED illuminator itself, the power supply voltage of the LED is a few tenths of a volt. Voltage changes can cause large current changes. Therefore, the work of the LED needs to add a controller.
We generally use several LEDs in series. Why use in series instead of parallel? It is determined by the characteristics of the LED. The work of the LED is to have a constant voltage and a constant current. The grades of LEDs are distinguished according to the amount of light emitted under the same current, and the cost of using a driving circuit for each LED independently is relatively high. Use in series can balance the light emission by selecting LEDs of the same class.
The drive circuit (controller) of the LED is to ensure the normal operation of the LED and prolong its life. The life of the LED is manifested as light attenuation, that is, with the passage of time, the brightness becomes lower and lower until it is extinguished. LED work requires a high-performance constant DC power supply, only in this way can it work stably and effectively for a long time, so the drive circuit is very important in the use of LEDs.
The current LED driver circuit generally uses LED dedicated driver integrated circuits, and its representative models are:
AMC7135
ZXSC310 (manufacturer: ZETEX)
LTC3454 (manufacturer: Ling Trier)
TPS6300 (Manufacturer: Texas Instruments)
LT3785
LT1371
LN3421
The above hope to help you, the circuit diagram is omitted here, if necessary Please send me a message, I will try my best to reply.
References: Online, “Electronic World”, “Radio”, “Electronic News”, etc.

9. Does Meizu M6 have video output?

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In fact, this article can be published a few days earlier, but in order to be worthy of the most powerful MP3 in China, it is worthy of the first confrontation between domestic brands and international brands. Honour, I still carefully pecked this article, so that readers can see the most detailed evaluation article of Meizu MiniPlay in China. Maybe many consumers will take a skeptical attitude. After all, domestic brands have brought you too many flaws. At present, everyone still looks at this product with a wait-and-see attitude, but I am here to tell you responsibly, If you want to buy M6, then let’s do it. I believe this product will give you a new understanding of the sound quality of MP3 and the performance of domestic brands.�, with it, whether it is Apple or Avery or Samsung, everyone will go to the side, look up to Meizu, and pay tribute to the M6.

The M6 ​​is packaged in a white translucent package, and the front of the M6 ​​can be seen from the outside. The left side is a 2.4-inch LCD screen, and the right side is a cross touch key. The whole is very simple.

Open the package is a two-layer structure box, on which is the M6 ​​host, and the lower compartment contains instructions, user manuals, warranty, certificate, USB adapter cable, PT800+ headset, leather Cover, lens cloth and hand strap, I personally feel that it would be better if a charger with a USB port could be distributed.

Carefully take out the M6, the spotless machine is indeed somewhat similar to Apple’s mini ipod, the front uses a layer of transparent resin to protect the delicate LCD screen, and Meizu and its considerate A layer of highly transparent and wear-resistant protective stickers is affixed to consumers in advance. The whole M6 machine is slightly smaller than a credit card, and the weight of 55 grams is light whether it is in the hand or in the pocket. The level player is more than enough.

The back of the mirror-finished M6 is also thoughtfully affixed with a layer of protective film, with the beautiful Meizu logo and the words miniplay on it, and below it is the capacity of mp3 and some other parameters, so that the only feeling The unpleasant thing is that the mirror treatment will make the dust have nowhere to hide, and you can appreciate the pictures from the pictures.

The upper right corner of the fuselage is the M6’s power-on playback switch, which can be used to control the playback of tracks and switch the machine.

The right side of the fuselage is the M6 ​​interface distribution area, from left to right are the USB interface, lanyard gear and 3.5mm headphone jack.

Under the fuselage is the lock switch, and once locked, the switch will display red, making it clear at a glance.

The control button on the left of the M6 ​​adopts the same touch key as that of Apple. All you have to do is to touch it with your fingers. If there is static electricity, the touch keys will run around. I hope Meizu will improve it in the future.

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There is no ambiguity in the inner and outer peripherals
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M6 is beautiful on the outside, so the inside What the heck, our bear editors gave it a teardown yesterday.

Remove the back cover of the M6, you can see the area other than the battery, the entire back is occupied by a small blue circuit board, which gathers most of the important parts inside the M6 element.
First of all, the two big ones are Samsung’s flash memory chips. Usually, flash memory chips belong to the petite category, but compared with other chips of the M6, they become giants. These two pieces are numbered K9K8G, and it can be seen that the capacity of each piece is 8Gbit, which is 1GB. This is a 2G M6. The gold contacts above the flash chip are the contacts that connect to the piezoelectric buzzer.

The next step is Samsung’s main control chip. SA58700X07 adopts ARM9 core, and the standard operating frequency is 200mhz. Have relatively strong computing power. M6 can complete many functions and realize further expansion and improvement of future functions thanks to the flexibility of the ARM core.

The closest thing to the main controller is the Samsung sdram that starts with sec. Samsung’s sdram naming rules are more complicated, and this chip is a relatively new technology. It took a lot of trouble to find it. Finally, the capacity of this chip was basically determined to be 128mbit or 16MB. The data bit width is 16 bits and the speed is 7.5 nanoseconds. (If there is any mistake, please feel free to correct me.) The large-capacity memory has laid a solid foundation for the future functions of the M6.

You can look at the chip circled in the picture. This is the Philips DAC/ADC chip that has the greatest impact on sound quality. Its size is very small, the number 380HN is the improved version of UDA1380. It is not surprising that the sound quality of the M6 ​​can exceed the level of all MP3s at present. The latest Philips 1380 chip has not only greatly improved the sound quality, but also supports ultra-high bit rate WMA format and OGG format files. During playback, even the WMA format files with a bit rate of more than 700k will not have popping sound, and the bit rate of ordinary CD files is only about 800k. It can be seen that the sound quality of M6 is no worse than that of CD.
Next to “Flying Core” is a radio chip numbered V24000, manufactured by Sanyo. This chip is rarely used by machines. The chip is small in size, but because of the high density of M6 components, the performance of this chip cannot be well developed. The M6’s radio performance has improved significantly since firmware 1.005, but it is still inferior to the E3’s radio sensitivity. In places where the signal is strong, the sound quality of the radio is still good.

The last one to appear is covered by wires.� the LTC3455. This power management chip has strong protection function and high conversion efficiency. (Nominal up to 96%), while realizing seamless switching between USB power supply, current-limited charging, and built-in battery power supply. The battery box charging/power supply adjustable function supported by M6 and later is realized through the adjustment of the output voltage of the battery box and the management of this chip. The long battery life of the M6 ​​is not small.

The back of the board is as complex as the front, but there are far fewer chips, mostly resistors and capacitors. The only multi-pin IC with unknown function, maybe related to screen brightness control. (Please correct me if I’m wrong) The other conspicuous ones are the micro switch of the power button, the hold switch, and the headphone socket (it is worth noting that the contacts of the headphone socket are gold-plated, with an insulating plastic sheet on it.) Built-in microphone (M6’s recording effect is good, of course, this is also related to the DAC/ADC chip of Philips) USB interface (USB interface is padded with a flexible metal mesh structure, the keyboard backplane is grounded at the same time, avoiding touch The key is interfered)

The internal structure can already be seen that Meizu spares no expense, and the M6 ​​is also unambiguous in terms of external accessories. I made a comparison with it. Generally speaking, the sound of PT800+ is harder than that of MX500. It may not be so sweet when listening to human voices, especially female voices, but the sound field is about 3-5M wider than that of MX500. PT800+ has both high frequency and low frequency extension. It is stronger than the MX500, especially for the M6’s super bass output, the PT800+ is more suitable than the MX500 as the standard earphone of the M6. Listening to ‘Sleeping Earth’ and ‘Ajie Drum’ with ultra-low frequency response, you can clearly I heard the MX500’s inability to respond to the low frequency. As soon as the ultra-low frequency signal appeared, it started to beat the edge continuously, while the PT800+ also beat the edge, but the control was much better than the MX500.

In order to protect the beautiful shell of the M6, Meizu also specially equipped it with a suede lens cleaning cloth and a leather sheath, which can effectively protect the delicate shell of your love machine.

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The menu looks like an apple, the control needs to be strengthened
br />——————————————————— ———————————

M6 not only looks like Apple, but also operates The interface is also very similar, we will give you a detailed look at its simple interface and some other functions that MP3 does not have. (Because of the camera, the visual sense is not as good as the actual picture)

Press and hold the power button on the top of the M6 ​​for about 3 seconds, and a simple and beautiful boot screen of the M6 ​​appears, with blue MEIZU and The colorful miniplay LOGO is displayed extremely sharply on the 2.4-inch high-resolution true color screen.

The M6 ​​interface after booting can be used to describe the difference between it and Apple. From top to bottom, music, pictures, video, sound effects, radio, recording, playing, browsing all files, games From this point, it can be seen that M6 not only supports playing music, but also supports playing video, supporting radio, supporting recording and browsing pictures, and also found that it supports e-books, and because M6 2.4 inches The 260,000-color screen with a resolution of 320×240, whether it is a video, a picture or an e-book, looks very comfortable.

M6’s menu interface is like a detailed menu in a folder on our computer, which can be entered hierarchically, just like when playing music formats, it can be entered level by level, and a folder or a single file can be entered. It is very convenient to add it to your play menu, and it is also clear at a glance. And to select music and video, there are two ways to enter the menu, that is, directly click on the music and video option, or use browse all files to find.

M6 has set a lot of options for everyone in terms of sound effects. Not only can the response range of high and low frequencies be adjusted individually, but it also has multiple options such as natural, rock, classical, pop, live, jazz and bass. DSP sound effects, also support the SRS sound effects of the unique martial arts, and there are many adjustable items in the SRS options.

From WOW sound field to enhanced bass to brightness to low frequency response can be adjusted, and even the output speaker type can be set according to the different sound fields of headphones and speakers, among which the WOW option is to adjust the size of the sound field , in layman’s terms is to adjust the reverberation, the larger the value, the larger the sound field; and the enhanced bass can be fully opened to the minimum, unless you are an avid heavy metal rock lover, the bass of the M6 ​​can fully meet your needs. , and to be honest, your earphones can’t adapt if you open it too much, so you will definitely shoot.

It is said that the low frequency of the M6 ​​is good, and I agree with it after listening to it, and in the SRS sound effect, the low frequency response can be adjusted.��From 40HZ-400HZ, it is recommended that you do not turn on the SRS sound effect under normal circumstances, and set the value below 5 in the bass setting, otherwise you will find that your eardrums simply cannot withstand the M6’s tidal bottom bass.

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Videos, pictures, radios, recordings Powerful
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M6 not only has MP3 playback function, It can also support high-resolution AVI video and picture browsing, radio and recording functions. In the traditional sense, it can no longer be regarded as a pure MP3, and it is not an exaggeration to even classify it as MP4. Let’s take a look Its powerful performance in other applications such as video

M6 can browse pictures as easily as on a digital camera, and even provides picture transition effects, you can view the picture thumbnail catalog, and the pictures are displayed Thanks to the 2.4-inch true color screen with 260,000 colors, the colors are vivid and the images are sharp.

You can take a look at the still pictures taken. Due to the relationship between the camera and the light, the actual effect is better than this picture effect.

From the data point of view, the video playback performance of miniplayer has not reached the level of professional MP4 – it supports AVI files in XviD encoding format, and supports a maximum rate of 18 frames per second (Video: 18 fps, ≤ 512kbs). miniplayer also supports video playback with resolutions lower than 320×240. The official claim is that when playing files lower than 320×240 pixels, there is no problem reaching 30 frames.
This is also the reason why Meizu did not promote the M6 ​​as an MP4 player. Compared with the practice of many domestic manufacturers who use MP3s that can play MP4 files as MP4s, Meizu’s approach Appears to be generous and responsible.

The video playback effect of the M6 ​​seems to be able to fully meet the requirements of being a video player. Whether it is color, aliasing or screen delay, it handles very well, especially when playing foreign language films. You can read the Chinese subtitles clearly, and you don’t have to worry about watching videos on those 1.5-inch screens because you can’t see the subtitles clearly, and because it supports AVI format video files, you can use the conversion software that comes with Meizu CDs to convert them. At times, the speed is very fast. It only takes about 5 minutes to convert a video file of more than 100 M into an M6 playable file in AVI format. The only regret is the lower frame rate. If the frame rate can be increased to If it is more than 23 frames, the video playback will be more perfect, but from the official news from Meizu, the M6 ​​will be able to support rm format files by upgrading the firmware in the future. At that time, the M6 ​​can be called an MP4 in a real sense. .

M6’s radio options are simple to set, with automatic channel search and fine-tuning functions, support for stereo, and can store 30 radio stations. The radio effect is very good outdoors, but there will be noise in some places indoors. Fortunately, the noise can be suppressed by switching the mono channel. I feel that the use of Sanyo’s radio chip is already an investment at all costs for the M6.

In terms of recording, Meizu also provides a wealth of options, which can be used for internal recording and radio recording. Although Meizu only sets three levels of recording quality, low, medium and high, this is exactly the right choice for consumers. It simplifies the operation and is a more user-friendly design, and the M6 ​​provides a recording gain option. Even in the last row of the class, you can clearly record the lecture of the lecturer on the podium. It is the most suitable for listening to the class notes.

In addition to the above major functions, M6 also provides options for games and accessories, including Huarong Road, Sokoban games, calculator, stopwatch and calendar and other very useful accessory functions.

The system setting options of the M6 ​​are also very rich. Basically, all the settings you can think of can be found in the system settings of the M6. What is particularly commendable is that it can be used for music, radio, menu and video, respectively. The screen brightness and long bright time set by the picture effectively prolong the use time of the M6. If the settings are wrong, don’t worry, the M6 ​​has already set the option to restore the factory settings in the menu, which is convenient for everyone to change back to the default state.

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Actual listening experience, more than ordinary CD Machine
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MP3 is still based on sound quality Yes, having said so much, is the sound quality of the M6 ​​really as daunting as the Internet says? I took out the long-collected fever disc, and gave the M6 ​​a real test. How it turned out, see below.

The earphones used in the following evaluation are M6 standard PT800+, Sennheiser MX500, Audio-Technica EC7 and Plantronics A90 earphones. All music files are 320K MP3 files converted to optical fiber.�or WMA files over 300K.

You may not know the cover of this disc, but when it comes to breaking glass in the audiophile world, everyone should know it. The recording is so realistic, and the high-frequency dynamics are amazing. The tweeter that died tragically under this disc is also considered a “ghost under the pomegranate skirt”. This is known as the most amazing CD in the history of HI-FI recording. The glass in the first section and the thunder in the second section are often mentioned by fans, and other sections are often the first choice for audition.
The standard PT800+ imitates vividly. Because of its hard sound, it makes people feel that the glass is broken by the ear. The positioning and resolution are very high. The soft sound, on the contrary, lacks the pleasant and dripping sense of hearing, and feels that the response is a little slower. The Audio-Technica EC7 has a treble of more than 30,000HZ, so the sound of breaking glass becomes very harsh, a little too much, and Because Plantronics A90 is a headset, both the sound field and the sound effect are stronger than the previous pairs of earplugs.

A thunderstorm sound after the broken glass, the PT800+ dives better than the MX500, but the sound field is a bit messy, and the EC7, with its ultra-high resolution, expresses the sound of rain and thunder vividly, The A90 is very good in low frequency performance. The thunder of diving makes people feel the pressure of the whole body, but because the low frequency of the M6 ​​is too good, except for the high-end headphones such as the EC7, the other three headphones can be controlled. There are different degrees of shooting edge phenomenon.

After listening to the effect music, let’s listen to the symphony. Let’s use the familiar Tchaikovsky’s 1812 Overture. This is the version performed by the Philadelphia Orchestra of the United States. The conductor is Eugene Ormandy. “1812 Overture” was commissioned by piano master Rubinstein to create for the Moscow Art Industry Fair in 1880. The performance used a large orchestra and even used military cannons. The whole piece is dynamic and dynamic, especially the strong cannons The low frequency created by the sound, the oppression of the fist to the flesh is suffocating.
The invincible low frequency of the first and last few salutes is as I expected. Except for the EC7, it can be tolerated, and the other headphones have been shot, and the MX500 has become a sand throat. It seems to be waiting. A good M6 is indeed difficult to control without a pair of excellent headphones. When EC7 expresses the symphony played by the M6, it is not too much to use the metaphor of perfection. The depth and openness of the sound field, as well as the treble positioning that hit the Audio-Technica at the beginning, reflect the very good dynamics, positioning and signal-to-noise ratio of the M6.

For lovers of light music and string music like this, if you don’t listen to Paganini’s violin music, you will feel sorry for yourself. All violinists in the 20th century and even today have played and recorded Pagani. Ninety’s 6 violin concertos are the crowning glory; therefore, many of them have been recorded repeatedly throughout their lives, striving for perfection. It’s like casting a sword, and it’s a treasure after a thousand trials and tribulations.
This “Paganini Violin Concerto”, performed by the violin master Accardo and accompanied by the London Philharmonic Orchestra conducted by Dutoit, was borrowed from Dad, an audiophile, and is currently on the market. extinct.

The four pairs of headphones all show the qualities that the M6 ​​should have, with a first-class sound field, and the ‘rosy’ full violin flavor makes the M6 ​​perform very well, especially when listening to the MX500, the orchestral sound The accompaniment is soft and rich, which makes people feel extra loose and transparent. You can even hear the whispers of the strings and the bows rubbing against each other. It is unexpected that MP3 can also perform such a Mediterranean sunshine-like violin flavor.

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The vocals are equally wonderful, the rock hears Fading
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Speaking of vocals, Tsai Chin This song “Old Song of Tsai Chin” is recognized as a golden vocal disc in the audiophile circle. When I opened “The Forgotten Time”, Tsai Chin’s warm voice full of magnetism caught my ear all of a sudden, The sound of the MX500 is warmer, while the EC7 restores the sibilance and guttural sounds one by one. The PT800+ standard on the M6 ​​also performs very well. The sound is between the MX500 and the EC7. It has both the warm feeling of the MX500 and the The powerful analytical power of EC7. Listening to such songs in the silent dark night will be a great enjoyment in life.

He Xuntian’s “A Jie Drum” is a fever disc that has been bought out in Europe and the United States. Zhu Zheqin’s pure and natural voice makes people re-experience the most natural things in music that have been gradually lost. Her singing charm can only be described as “ethereal”. She uses her unique spiritual, sensitive and pure voice, sometimes agitated and ethereal, sometimes warm and mysterious, and takes you to that mysterious and distant plateau. She has absolute personality The performance shows you China’s most distinctive newThe charm of century music also shows Zhu Zheqin’s unique artistic realm.
In order to ensure its excellent sound effects, He Xuntian decided to only release CDs, not cassettes. When Zhu Zheqin was recording this album, each song was sung in its original form from beginning to end without any editing and remixing, and because of her free venting of her deep feelings, she completely abandoned the scruples and constraints of general singing skills, and He Xuntian adopted a lot of techniques. Western electronic synthesizers use the most primitive recording method, but the finished works are full of strong oriental national flavor.

M6’s performance on this album has surpassed the hundreds of thousands of sound combinations that have been heard. The high dynamic music and invincible ultra-low frequency make all 4 pairs of headphones fail. The combination of low voice and unadorned female voice gives the illusion of being in Tibet and listening to the sounds of nature.

You may not know the frozen hell of the Eagles, but you must know a single “Horel california” (Hotel California) in it, which is sold in almost every audio store and every electrical appliance store. The audio area will continue to play this song every day. To listen to it with the Rock sound effect that comes with the M6, it can only be described in two words. Personally, I like the PT800+’s sense of control, especially the beginning and the end. The guitar solos at both ends, whether it is the very grainy ring fingers at the beginning and the positioning of the two guitar solos at the end, are all in place, you can clearly hear the electric bass and electric guitar on the left, and the lead singer in the center left Don Henley’s bleak singing voice, as well as an electric box acoustic guitar and a classical acoustic guitar on the right, as well as the positioning of the drums at the back, the space expansion is very good. At the end of the song, the surrounding applause made me immersed in the scene, I didn’t want to open my eyes, and wanted to continue to be intoxicated. Of course, if you listen to rock, it is most suitable to use headphones like the Plantronics A90.
Here I would also highly recommend ‘Sleeping Earth’ and ‘Moon Full West Tower’ among the 4 audition songs that come with M6. As a WMA file with a bit rate close to 500K, M6 reflects no less. The strength of the CD player, the ultra-low frequency of the sleeping earth and the high resolution of the surrounding environment, as well as the emotional expression of the sad style folk music of Yueman West Building, all express the super potential of the M6 ​​as a music player.

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Applaud for M6 and pay tribute to Meizu
br />——————————————————— ———————————

M6 comes with AVI on CD-ROM Convert software and system upgrade software, and take care of some users who are still using WIN98 system, and provide WIN98 drivers.

Related specifications of M6

Meizu, as the leader of the domestic MP3 brand, once again used the charming M6 to make a most shocking performance for everyone, and this evaluation’s The miniplay MP3 player is also the most cost-effective and powerful MP3 player at home and abroad so far. As an editor of Xiaoxiong Online, I may not have encountered such an exciting product for a long time, so I still spent a lot of time in this evaluation. Great efforts, and strive to do it well, if there is anything not perfect, I hope everyone understands.
M6 conquered all the staff in the editorial department with its perfect performance and low price (512M 699 yuan, 1G 899 yuan, 2G 1099 yuan, 4G 1599 yuan), and it must not be too much to award the M6 ​​Editor’s Choice Award. If you want me to be picky, I hope that Meizu can continuously update the firmware of the M6, reduce the crash phenomenon, improve the runaway phenomenon of the touchpad, provide more software programs, and provide more technical information about the M6 ​​in major media. article; and I would like to make some suggestions for M6 here, you can consider adding the function of expansion card and a built-in small speaker, then M6 will bring us more fun. If I had to give the M6 ​​a score, I would give it a 9.8 out of 10.

How about M6, interested friends can go to the New World Mezzanine Meizu store to listen on the spot, I believe you will express the same emotion as me after listening to it. Here, I want to applaud M6 and pay tribute to Meizu, a domestic high-quality brand. I hope that Meizu, your road will become wider and wider.

10. The sound effect of that video format is the best. I want to make a music video myself. I don’t know which format to convert to which can keep the original sound. Wait online!

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In fact, this article can be published a few days earlier, but in order to be worthy of the most powerful MP3 in China, it is the first time that it is worthy of domestic brands and international brands. In order to let readers see the most detailed evaluation article of Meizu MiniPlay in China. Perhaps many consumers will hold a skeptical attitude, after all, domestic brands are for everyoneThere are too many flaws, everyone is still looking at this product with a wait-and-see attitude, but I am here to tell you responsibly, if you want to buy M6, then let’s do it, I believe this The product will definitely give you a new understanding of the sound quality of MP3 and the performance of domestic brands. With it, whether it is Apple, Avery or Samsung, everyone will go to the side, look up to Meizu, and pay tribute to the M6.

The M6 ​​is packaged in a white translucent package, and the front of the M6 ​​can be seen from the outside. The left side is a 2.4-inch LCD screen, and the right side is a cross touch key. The whole is very simple.

Open the package is a two-layer structure box, on which is the M6 ​​host, and the lower compartment contains instructions, user manuals, warranty, certificate, USB adapter cable, PT800+ headset, leather Cover, lens cloth and hand strap, I personally feel that it would be better if a charger with a USB port could be distributed.

Carefully take out the M6, the spotless machine is indeed somewhat similar to Apple’s mini ipod, the front uses a layer of transparent resin to protect the delicate LCD screen, and Meizu and its considerate A layer of highly transparent and wear-resistant protective stickers is affixed to consumers in advance. The whole M6 machine is slightly smaller than a credit card, and the weight of 55 grams is light whether it is in the hand or in the pocket. The level player is more than enough.

The back of the mirror-finished M6 is also thoughtfully affixed with a layer of protective film, with the beautiful Meizu logo and the words miniplay on it, and below it is the capacity of mp3 and some other parameters, so that the only feeling The unpleasant thing is that the mirror treatment will make the dust have nowhere to hide, and you can appreciate the pictures from the pictures.

The upper right corner of the fuselage is the M6’s power-on playback switch, which can be used to control the playback of tracks and switch the machine.

The right side of the fuselage is the M6 ​​interface distribution area, from left to right are the USB interface, lanyard gear and 3.5mm headphone jack.

Under the fuselage is the lock switch, and once locked, the switch will display red, making it clear at a glance.

The control button on the left of the M6 ​​adopts the same touch key as that of Apple. All you have to do is to touch it with your fingers. If there is static electricity, the touch keys will run around. I hope Meizu will improve it in the future.

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There is no ambiguity in the inner and outer peripherals
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The exterior of the M6 ​​is beautiful, so the interior What the heck, our bear editors gave it a teardown yesterday.

Remove the back cover of the M6, you can see the area other than the battery, the entire back is occupied by a small blue circuit board, which gathers most of the important parts inside the M6 element.
First of all, the two big ones are Samsung’s flash memory chips. Usually, flash memory chips belong to the petite category, but compared with other chips of the M6, they become giants. These two pieces are numbered K9K8G, and it can be seen that the capacity of each piece is 8Gbit, which is 1GB. This is a 2G M6. The gold contacts above the flash chip are the contacts that connect to the piezoelectric buzzer.

Next is Samsung’s main control chip. SA58700X07 adopts ARM9 core, and the standard operating frequency is 200mhz. Have relatively strong computing power. M6 can complete many functions and realize further expansion and improvement of future functions thanks to the flexibility of the ARM core.

The closest thing to the master is the Samsung sdram that starts with sec. Samsung’s sdram naming rules are more complicated, and this chip is a relatively new technology. It took a lot of trouble to find it. Finally, the capacity of this chip was basically determined to be 128mbit or 16MB. The data bit width is 16 bits and the speed is 7.5 nanoseconds. (If there is any mistake, please feel free to correct me.) The large-capacity memory has laid a solid foundation for the future functions of the M6.

You can look at the chip circled in the picture. This is the Philips DAC/ADC chip that has the greatest impact on sound quality. Its size is very small, the number 380HN is the improved version of UDA1380. It is not surprising that the sound quality of the M6 ​​can exceed the level of all MP3s at present. The latest Philips 1380 chip has not only greatly improved the sound quality, but also supports ultra-high bit rate WMA format and OGG format files. During playback, even the WMA format files with a bit rate of more than 700k will not have popping sound, and the bit rate of ordinary CD files is only about 800k. It can be seen that the sound quality of M6 is no worse than that of CD.
Next to “Flying Core” is a radio chip numbered V24000, manufactured by Sanyo. This chip is rarely used by machines. The chip is small in size,However, due to the dense arrangement of M6 components, the performance of this chip failed to perform well. The M6’s radio performance has improved significantly since firmware 1.005, but it is still inferior to the E3’s radio sensitivity. In places where the signal is strong, the sound quality of the radio is still good.

The LTC3455 that was blocked by wires was the last one to appear. This power management chip has strong protection function and high conversion efficiency. (Nominal up to 96%), while realizing seamless switching between USB power supply, current-limited charging, and built-in battery power supply. The battery box charging/power supply adjustable function supported by M6 and later is realized through the adjustment of the output voltage of the battery box and the management of this chip. The long battery life of the M6 ​​is not small.

The back of the board is as complex as the front, but there are far fewer chips, mostly resistors and capacitors. The only multi-pin IC with unknown function, maybe related to screen brightness control. (Please correct me if I’m wrong) The other conspicuous ones are the micro switch of the power button, the hold switch, and the headphone socket (it is worth noting that the contacts of the headphone socket are gold-plated, with an insulating plastic sheet on it.) Built-in microphone (M6’s recording effect is good, of course, this is also related to the DAC/ADC chip of Philips) USB interface (USB interface is padded with a flexible metal mesh structure, the keyboard backplane is grounded at the same time, avoiding touch The key is interfered)

The internal structure can already be seen that Meizu spares no expense, and the M6 ​​is also unambiguous in terms of external accessories. I made a comparison with it. Generally speaking, the sound of PT800+ is harder than that of MX500. It may not be so sweet when listening to human voices, especially female voices, but the sound field is about 3-5M wider than that of MX500. PT800+ has both high frequency and low frequency extension. It is stronger than the MX500, especially for the M6’s super bass output, the PT800+ is more suitable than the MX500 as the standard earphone of the M6. Listening to ‘Sleeping Earth’ and ‘Ajie Drum’ with ultra-low frequency response, you can clearly I heard the MX500’s inability to respond to the low frequency. As soon as the ultra-low frequency signal appeared, it started to beat the edge continuously, while the PT800+ also beat the edge, but the control was much better than the MX500.

In order to protect the beautiful shell of the M6, Meizu also specially equipped it with a suede lens cleaning cloth and a leather sheath, which can effectively protect the delicate shell of your love machine.

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The menu looks like an apple, the control needs to be strengthened
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M6 not only looks like Apple, but also operates The interface is also very similar, we will give you a detailed look at its simple interface and some other functions that MP3 does not have. (Because of the camera, the visual sense is not as good as the actual picture)

Press and hold the power button on the top of the M6 ​​for about 3 seconds, and a simple and beautiful boot screen of the M6 ​​appears, with blue MEIZU and The colorful miniplay LOGO is displayed extremely sharply on the 2.4-inch high-resolution true color screen.

The M6 ​​interface after booting can be used to describe the difference between it and Apple. From top to bottom, music, pictures, video, sound effects, radio, recording, playing, browsing all files, games From this point, it can be seen that M6 not only supports playing music, but also supports playing video, supporting radio, supporting recording and browsing pictures, and also found that it supports e-books, and because M6 2.4 inches The 260,000-color screen with a resolution of 320×240, whether it is a video, a picture or an e-book, looks very comfortable.

M6’s menu interface is like a detailed menu in a folder on our computer, which can be entered hierarchically, just like when playing music formats, it can be entered level by level, and a folder or a single file can be entered. It is very convenient to add it to your play menu, and it is also clear at a glance. And to select music and video, there are two ways to enter the menu, that is, directly click on the music and video option, or use browse all files to find.

M6 has set a lot of options for everyone in terms of sound effects. Not only can the response range of high and low frequencies be adjusted individually, but it also has multiple options such as natural, rock, classical, pop, live, jazz and bass. DSP sound effects, also support the SRS sound effects of the unique martial arts, and there are many adjustable items in the SRS options.

From WOW sound field to enhancing bass to brightness to low frequency response, it can be adjusted, and even the output speaker type can be set according to the different sound fields of headphones and speakers. The WOW option is to adjust the size of the sound field , in layman’s terms is to adjust the reverberation, the larger the value, the larger the sound field; and the enhanced bass is considered to be fully open to the maximum.��, unless you are an avid heavy metal rock lover, the bass of the M6 ​​can fully meet your needs, and to be honest, your headphones will not be able to adapt to it if you open it too much.

It is said that the low frequency of the M6 ​​is good, and I agree with it after listening to it, and in the SRS sound effect, the low frequency response can be adjusted from 40HZ-400HZ. In the bass setting, set the value below 5, otherwise you will find that your eardrums can’t bear the M6’s surging bass.

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Videos, pictures, radios, recordings Powerful
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M6 not only has MP3 playback function, It can also support high-resolution AVI video and picture browsing, radio and recording functions. In the traditional sense, it can no longer be regarded as a pure MP3, and it is not an exaggeration to even classify it as MP4. Let’s take a look Its powerful performance in other applications such as video

M6 can browse pictures as easily as a digital camera, and even provides picture transition effects, can view the picture thumbnail directory, and the pictures are displayed Thanks to the 2.4-inch true color screen with 260,000 colors, the colors are vivid and the images are sharp.

You can take a look at the still pictures taken. Due to the relationship between the camera and the light, the actual effect is better than this picture effect.

From the data point of view, the video playback performance of miniplayer has not reached the level of professional MP4 – it supports AVI files in XviD encoding format, and supports a maximum rate of 18 frames per second (Video: 18 fps, ≤ 512kbs). miniplayer also supports video playback with resolutions lower than 320×240. The official claim is that when playing files lower than 320×240 pixels, there is no problem reaching 30 frames.
This is also the reason why Meizu did not promote the M6 ​​as an MP4 player. Compared with the practice of many domestic manufacturers who use MP3s that can play MP4 files as MP4s, Meizu’s approach Appears to be generous and responsible.

The video playback effect of the M6 ​​seems to be able to fully meet the requirements of being a video player. Whether it is color, aliasing or screen delay, it handles very well, especially when playing foreign language films. You can read the Chinese subtitles clearly, and you don’t have to worry about watching videos on those 1.5-inch screens because you can’t see the subtitles clearly, and because it supports AVI format video files, you can use the conversion software that comes with Meizu CDs to convert them. At times, the speed is very fast. It only takes about 5 minutes to convert a video file of more than 100 M into an M6 playable file in AVI format. The only regret is the lower frame rate. If the frame rate can be increased to If it is more than 23 frames, the video playback will be more perfect, but from the official news from Meizu, the M6 ​​will be able to support rm format files by upgrading the firmware in the future. At that time, the M6 ​​can be called an MP4 in a real sense. .

M6’s radio options are simple to set, with automatic channel search and fine-tuning functions, support for stereo, and can store 30 radio stations. The radio effect is very good outdoors, but there will be noise in some places indoors. Fortunately, the noise can be suppressed by switching the mono channel. I feel that the use of Sanyo’s radio chip is already an investment at all costs for the M6.

In terms of recording, Meizu also provides a wealth of options, which can be used for internal recording and radio recording. Although Meizu only sets three levels of recording quality, low, medium and high, this is exactly the right choice for consumers. It simplifies the operation and is a more user-friendly design, and the M6 ​​provides a recording gain option. Even in the last row of the class, you can clearly record the lecture of the lecturer on the podium. It is the most suitable for listening to the class notes.

In addition to the above major functions, M6 also provides options for games and accessories, including Huarong Road, Sokoban games, calculator, stopwatch and calendar and other very useful accessory functions.

The system setting options of the M6 ​​are also very rich. Basically, all the settings you can think of can be found in the system settings of the M6. What is particularly commendable is that it can be used for music, radio, menu and video, respectively. The screen brightness and long bright time set by the picture effectively prolong the use time of the M6. If the settings are wrong, don’t worry, the M6 ​​has already set the option to restore the factory settings in the menu, which is convenient for everyone to change back to the default state.

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Actual listening experience, more than ordinary CD Machine
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MP3 is ultimately based on sound quality Yes, having said so much, is the sound quality of the M6 ​​real?As said on the Internet, he is proud of the world. He took out the long-collected fever disc, and came to a real test for the M6. How it turned out, see below.

The earphones used in the following evaluation are M6 standard PT800+, Sennheiser MX500, Audio-Technica EC7 and Plantronics A90 earphones. All music files are 320K MP3 files transferred by optical fiber or WMA files above 300K.

You may not know the cover of this disc, but when it comes to breaking glass in the audiophile world, everyone should know it. The recording is so realistic, and the high-frequency dynamics are amazing. The tweeter that died tragically under this disc is also considered a “ghost under the pomegranate skirt”. This is known as the most amazing CD in the history of HI-FI recording. The glass in the first section and the thunder in the second section are often mentioned by fans, and other sections are often the first choice for audition.
The standard PT800+ imitates vividly. Because of its hard sound, it makes people feel that the glass is broken by the ear. The positioning and resolution are very high. When listening to the MX500, due to its warmer and more The soft sound, on the contrary, lacks the pleasant and dripping sense of hearing, and feels that the response is a little slower. The Audio-Technica EC7 has a treble of more than 30,000HZ, so the sound of breaking glass becomes very harsh, a little too much, and Because Plantronics A90 is a headset, both the sound field and the sound effect are stronger than the previous pairs of earplugs.

A thunderstorm sound after the broken glass, the PT800+ dives better than the MX500, but the sound field is a bit messy, and the EC7, with its ultra-high resolution, expresses the sound of rain and thunder vividly, The A90 is very good in low frequency performance. The thunder of diving makes people feel the pressure of the whole body, but because the low frequency of the M6 ​​is too good, except for the high-end headphones such as the EC7, the other three headphones can be controlled. There are different degrees of shooting edge phenomenon.

After listening to the effect music, let’s listen to the symphony. Let’s use the familiar Tchaikovsky’s 1812 Overture. This is the version performed by the Philadelphia Orchestra of the United States. The conductor is Eugene Ormandy. “1812 Overture” was commissioned by piano master Rubinstein to create for the Moscow Art Industry Fair in 1880. The performance used a large orchestra and even used military cannons. The whole piece is dynamic and dynamic, especially the strong cannons The low frequency created by the sound, the oppression of the fist to the flesh is suffocating.
The invincible low frequency of the first and last few salutes was as I expected. Except for the EC7, it was still acceptable. The other headphones were shot, and the MX500 was shot like a sand throat. It seems to be waiting. A good M6 is indeed difficult to control without a pair of excellent headphones. When EC7 expresses the symphony played by the M6, it is not too much to use the metaphor of perfection. The depth and openness of the sound field, as well as the treble positioning that hit the Audio-Technica at the beginning, reflect the very good dynamics, positioning and signal-to-noise ratio of the M6.

For lovers of light music and string music like this, if you don’t listen to Paganini’s violin music, you will feel sorry for yourself. All violinists in the 20th century and even today have played and recorded Pagani. Ninety’s 6 violin concertos are the crowning glory; therefore, many of them have been recorded repeatedly throughout their lives, striving for perfection. It’s like casting a sword, and it’s a treasure after a thousand trials and tribulations.
This piece of “The Complete Paganini Violin Concerto” played by violin master Accardo and accompanied by the London Philharmonic Orchestra conducted by Dutoit was borrowed from Dad, an audiophile, and is currently on the market. extinct.

The 4 pairs of headphones all show the qualities that the M6 ​​should have, with a first-class sound field, and the ‘rosy’ violin flavor makes the M6 ​​perform very well, especially when listening to the MX500, the orchestral sound The accompaniment is soft and rich, which makes people feel extra loose and transparent. You can even hear the whispers of the strings and the bows rubbing against each other. It is unexpected that MP3 can also perform such a Mediterranean sunshine-like violin flavor.

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The vocals are equally wonderful, the rock hears Fading
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Speaking of vocals, Tsai Chin This song “Old Song of Tsai Chin” is recognized as a golden vocal disc in the audiophile circle. When I opened “The Forgotten Time”, Tsai Chin’s warm voice full of magnetism caught my ear all of a sudden, The sound of the MX500 is warmer, while the EC7 restores the sibilance and guttural sounds one by one. The PT800+ standard on the M6 ​​also performs very well. The sound is between the MX500 and the EC7. It has both the warm feeling of the MX500 and the The powerful analytical power of EC7. Listening to such songs in the silent dark night will be a great enjoyment in life.

He Xuntian’s “A Jie Drum” is a fever disc that has been bought out in Europe and the United States. Zhu Zheqin’s pure and natural voice makes people re-experience the gradualGradually lost the most natural quality of music. Her singing charm can only be described as “ethereal”. She uses her unique spiritual, sensitive and pure voice, sometimes agitated and ethereal, sometimes warm and mysterious, and takes you to that mysterious and distant plateau. She has an absolute personality It shows you the charm of China’s most distinctive new century music, and also shows Zhu Zheqin’s unique artistic realm.
In order to ensure its excellent sound effects, He Xuntian decided to only release CDs and not cassettes. When Zhu Zheqin was recording this album, each song was sung in its original form from beginning to end without any editing and remixing, and because of her free venting of her deep feelings, she completely abandoned the scruples and constraints of general singing skills, and He Xuntian adopted a lot of techniques. Western electronic synthesizers use the most primitive recording method, but the finished works are full of strong oriental national flavor.

The performance of M6 on this album has surpassed the hundreds of thousands of sound combinations that have been heard. The high dynamic music and invincible ultra-low frequency make all 4 pairs of headphones fail. The combination of low voice and unadorned female voice gives the illusion of being in Tibet and listening to the sounds of nature.

You may not know the frozen hell of the Eagles, but you must know a single “Horel california” (Hotel California) in it, which is sold in almost every audio store and every electrical appliance store. The audio area will continue to play this song every day. To listen to it with the Rock sound effect that comes with the M6, it can only be described in two words. Personally, I like the PT800+’s sense of control, especially the beginning and the end. The guitar solos at both ends, whether it is the very grainy ring fingers at the beginning and the positioning of the two guitar solos at the end, are all in place, you can clearly hear the electric bass and electric guitar on the left, and the lead singer in the center left Don Henley’s bleak singing voice, as well as an electric box acoustic guitar and a classical acoustic guitar on the right, as well as the positioning of the drums at the back, the space expansion is very good. At the end of the song, the surrounding applause made me immersed in the scene, I didn’t want to open my eyes, and wanted to continue to be intoxicated. Of course, if you listen to rock, it is most suitable to use headphones like the Plantronics A90.
Here, I would highly recommend ‘Sleeping Earth’ and ‘Moon Full West Tower’ among the 4 audition songs that come with M6. As a WMA file with a bit rate close to 500K, M6 shows no inferior performance. The strength of the CD player, the ultra-low frequency of the sleeping earth and the high resolution of the surrounding environment, as well as the emotional expression of the sad style folk music of Yueman West Building, all express the super potential of the M6 ​​as a music player.

—————————————————— ————————————–
Applaud for M6 and pay tribute to Meizu
br />——————————————————— ———————————

M6 comes with AVI on CD-ROM Convert software and system upgrade software, and take care of some users who are still using WIN98 system, and provide WIN98 drivers.

Related specifications of M6

Meizu, as the leader of the domestic MP3 brand, once again used the charming M6 to make a most shocking performance for everyone, and this evaluation’s The miniplay MP3 player is also the most cost-effective and powerful MP3 player at home and abroad so far. As an editor of Xiaoxiong Online, I may not have encountered such an exciting product for a long time, so I still spent a lot of time in this evaluation. Great efforts, and strive to do it well, if there is anything not perfect, I hope everyone understands.
M6 conquers all the staff in the editorial department with its perfect performance and low price (512M 699 yuan, 1G 899 yuan, 2G 1099 yuan, 4G 1599 yuan), and it must not be too much to award the M6 ​​Editor’s Choice Award. If you want me to be picky, I hope that Meizu can continuously update the firmware of the M6, reduce the crash phenomenon, improve the runaway phenomenon of the touchpad, provide more software programs, and provide more technical information about the M6 ​​in major media. article; and I would like to make some suggestions for M6 here, you can consider adding the function of expansion card and a built-in small speaker, then M6 will bring us more fun. If I had to give the M6 ​​a score, I would give it a 9.8 out of 10.

How about the M6, interested friends can go to the Meizu store on the mezzanine in the New World to listen to it on the spot. I believe you will feel the same emotion as me after listening to it. Here, I want to applaud M6 and pay tribute to Meizu, a domestic high-quality brand. I hope that Meizu, your road will become wider and wider.

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