Composite Voice Over IP Technology Protocol Reference Voice Over IP Technology Protocol Ref

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Audio—over—IP,2014年专业音频领域最强音

Audio—over—IP，2014年专业音频领域最强音作者：吴涛来源：《信息化视听》2015年第02期对于2014年的专业音频领域来说，“IP化”无疑仍是最炙手可热的趋势和话题。

向IP化“迁移”IP化的音频系统利用TCP/IP技术，通过互联网进行数据传输和功能管理，可极大提升系统操控和管理的便捷性和灵活性。

IP化之后，音频信号的传输以网络为渠道，将不受建筑结构的局限，并且可以极大简化安装部署流程。

以一大型商场的公共广播应用为例，IP化后只需要在商场的每层楼的交换机上分一根网线到解码终端，就可以完成布线工作。

而这样做除了可以简化施工难度之外，对于后续还有更为重要的意义，那就是可以将所有楼层的音频信号和控制信号进行统一管理。

同时，由于IPv6的推进，未来每一只扬声器终端都有可能配备独立的IP 地址，这将使操作管理及个性化设定等变得无比便捷。

相信随着网络基础建设的不断完善，带宽的不断提高，音频IP化的优势还将进一步显现。

基于此，越来越多的企业都开始向IP化“迁移”，以寻求市场先机。

其中，由博世主导建立的OMNEO平台便是其实现产品线IP化的重要一环。

OMNEO是以公共标准为基础的开放媒体网络架构，由一个基于Dante的音频程序传输协议组件以及一个控制协议套件构成，提供低延迟高品质的多声道音频数据流交换，同时提供安全可靠的系统控制。

据博世安防通讯系统会议广播产品经理许培明透露，目前博世整个通讯产品线，包括专业音响、公共广播、会议系统以及重要通讯系统，都在陆续往OMNEO平台迁移。

不同协议间的兼容问题、灵活性、开放性、音频传输的品质、安全性等都被列入OMNEO 平台解决的范畴。

由此，许培明先生指出，“届时，无需音频线，只需交换机、路由器和网线就可以搭建一套会议系统或者专业音响系统，彼此间通讯也只需要一根网线即可完成传输。

”对此，南鹏科技总经理陈嘉炜也表达了同样的观点：音视频信号传输正在快速IP化，相应的控制、处理也都将基于IP。

Domino Pro 无线个人听力辅助系统（专业版）说明书

Domino Pro无线个人听力辅助系统（专业版）数字信号处理。

Domino Pro 采用先进的数字信号处理技术，就算是在最糟糕的听力环境下，也可以非常清晰地传递自然真实的声音。

无忧无虑地交谈。

Domino Pro 采用2.4GHz 全球标准传输频率。

这意味着，您可以在全球范围内使用Domino Pro 系统。

Domino Pro 系统采用128位数字加密技术，完全避免了被偷听的可能定向麦克风。

发射器和接收器都内置有全向和定向麦克风。

您可以使用定向麦克风“指向”收听说话人的声音，减少周围的噪音。

操作简易。

Domino Pro 便。

每项功能对应一个按键，没有复杂的使用说明。

的操作非常方Domino Pro 是一套无线个人听力辅助系统，不管您是助听器用户，还是偶尔有听力障碍，它都可以帮助您在日常生活中听得更好。

小巧轻便。

Domino Pro 巧，约74放进口袋里，也不觉得沉重。

就像手机一样小克重。

这样就能将它们隐蔽地电源持久。

Domino Pro 池，就像手机一样，您不用担心要经常购买新电池。

使用可充电锂电享受看电视的乐趣。

把的发射器连接到电视或音响，您就可以听到无线宽频的立体声音质，而且自由调节音量。

Domino Pro 电视、MP3、音响无线加密传输耳塞讲话发射器接收器讲话输入输出技术规格尺寸和重量高：3.9英寸（99毫米）宽：1.9英寸（48米）厚：0.9英寸（22米）重量：2.5 盎司74 克毫毫（）产品包装包含您通常情况下使用BE8005 Domino Pro所需的配件，都包含在这个包装盒里BE2210接收器和BE2230发射器BE9142 USB通用充电器，包括4个主要插头BE9135 有安全扣的挂颈绳BE9124 入耳式立体声耳塞BE9141 精美旅行包BE9136领夹麦克风BE9137 音频转换线，1.2米，带3.5mm接口转换头和电视莲花头转换头使用说明书和快速操作指引也可选配BE9159 电感颈圈（配合助听器T档使用）接收器按键和调控音调音量内置麦克风选择开关麦克风耳机输出选择发射器音量、音调指示灯充电接口发射器按键和调控与接收器配对LED指示灯麦克风音频线接口开关充电接口满足所有需求的配件BE2210接收器BE9122立体声耳机BE9124立体声耳塞BE9125下挂式耳塞BE9136领夹麦克风BE9137音频转换线，1.2米，带3.5mm接口转换头和电视莲花头转换头B E9159电感颈圈输入信号麦克风：发射器和接收器都内置有全向及定向外部声源接入：2.5mm立体声插头信号0 dBV（最大输入）输出信号耳机接口：3.5mm立体声接口失真：0.05% THD电子频率：40 - 10 000赫兹音调控制：9级音量控制：9，截至频率1.6 kHz输出功率：100mW （16 Ω 负载）（）级电源和电池接收器和发射器都内置可充电锂电池工作时间：8-12小时（标准电池）充电时间：2.5小时（标准电池）无线电传输传输频率：2.4GHz，3频道传输距离：室内25米（直线距离），室外100米（）特点：加密传输自动搜索频道可与其它无线电发射器共存使用2.4 GHz频率传输直线距离声学规格使用BE9124耳塞最大输出：132dB SPL使用BE9124耳塞最大增量(60 dB SPL 输入信号):57,5 dB @ 1kHz 56 dB HFA失真：使用BE9124:0.08 % THD使用BE9122:0.6 % THD操作环境需求环境温度：32 ° - 95 °华氏度(0° 到35 °摄氏度相对湿度：5% - 95% （非冷凝））监管认证产品已通过以下认证:CE, FCC, RoHS, WEEE, C-Tick UL, NCC,0.9英寸（22毫米）1.9英寸（48毫米）1.9英寸（48毫米）3.9英寸（99毫米）Bellman 和 Bellman & Symfon 是注册商标，由Bellman &Symfon AB所拥有并保留所有权利。

cisco认证体系介绍

思科认证体系介绍思科认证体系是由Cisco公司建立的分为3个层次的网络技术证书体系，随着Cisco产品线的扩大和市场份额的不断提升，Cisco产品从当初仅有的Cisco路由器和Cisco交换机发展到现在的6大方向：路由交换，网络设计，网络安全，电信运营商，语音，网络存储，其Cisco证书也不断的扩增和调整覆盖了Cisco完整的产品线！Cisco认证体系路由交换：CCNA认证CCNP认证CCIE认证网络设计：CCNA认证CCDA认证CCDP认证网络安全：CCNA认证CCSP认证CCIE认证网络语音：CCNA认证CCVP认证CCIE认证网络存储：CCNA认证CCIE认证电信运营商：CCNA认证CCIP认证CCIE认证CCNP:Cisco Certified Network Professional1、CCNP认证简介CCNP是全球最大的网络设备公司Cisco(思科)公司的认可的技术证书－Cisco认证资深网络支持工程师，在整个Cisco认证体系处于中级证书的地位。

需要掌握：IP、IGRP、IPX、Async路由、Appletalk、扩展访问列表、IP RIP、路由器重定向、IPX RIP、路由器摘要、最短路径优先（OSPF）、变长子网掩码（VLSM）、边界网关协议（BGP）、串行（Serial）、EIGRP、帧中继、综合业务数字网（ISDN）、X.25、按需拨号协议（DDR）、PSTN、点对点协议、VLAN、以太网、访问列表、802.10、FDDI、透明桥及翻译桥。

2、CCNP认证的考试途径CCNP考试途径一:642-901 BSCI Building Scalable Cisco Internetworks642-812 Building Converged Cisco Multilayer Switched Networks642-825 ISCW Implementing Secure Converged Wide Area Networks642-845 ONT Optimizing Converged Cisco NetworksCCNP考试途径二:642-892Building Scalable Cisco Internetworks (BSCI)Building Cisco Multilayer Switched Networks (BCMSN)642-825 ISCW Implementing Secure Converged Wide Area Networks642-845 ONT Optimizing Converged Cisco Networks这四门是人们通常选择的考试科目，通过以上四门考试，即可获得CCNP证书。

AXIS M3115-LVE网络摄像头说明书

DatasheetAXIS M3115–LVE Network CameraAffordable flat-faced1080p dome with IRAXIS M3115-LVE is an affordable,flat-faced dome designed to suppress light reflections.This compact,IK08-rated cam-era features a wide-angle view in HDTV1080p video.It includes Forensic WDR,Lightfinder and built-in IR illumination for sharp video with clear colors even in challenging light or complete darkness.Additionally,it offers flexible instal-lation for both indoor and outdoor surveillance.And,with its3-axis camera-angle adjustment,it can be easily leveled and directed.It features enhanced security functionality,and Axis Zipstream with support for H.264/H.265significantly reduces bandwidth and storage requirements without compromising image quality.>HDTV1080p video quality>Forensic WDR,Lightfinder and IR illumination>Flat-faced design suppressing light reflections>Zipstream supporting H.264and H.265>Signed firmware and secure bootAXIS M3115–LVE Network Camera CameraImage sensor1/2.9"progressive scan RGB CMOSLens 2.8mm,F2.0Horizontal field of view:105°Vertical field of view:58°Fixed iris,Fixed focus,IR correctedDay and night Automatically removable infrared-cut filterMinimum illumination Color:0.17lux at50IRE,F2.0 B/W:0.03lux at50IRE,F2.0 0lux with IR illumination onShutter speed1/33500s to2sCamera angle adjustment Pan:±180°Tilt:0°to60°(0°=lens directed at a right angle to camera base) Rotation:±95°Can be directed in any direction and see the wall/ceilingSystem on chip(SoC)Model ARTPEC-7Memory512MB RAM,512MB Flash VideoVideo compression H.264(MPEG-4Part10/AVC)Baseline,Main and High Profiles H.265(MPEG-H Part2/HEVC)Main ProfileMotion JPEGResolution1920x1080to160x90Frame rate Up to25/30fps with power line frequency50/60HzVideo streaming Multiple,individually configurable streams in H.264,H.265andMotion JPEGAxis Zipstream technology in H.264and H.265Controllable frame rate and bandwidthVBR/ABR/MBR H.264/H.265Multi-viewstreamingUp to2individually cropped out view areas in full frame rateImage settings Compression,color saturation,brightness,sharpness,contrast,local contrast,white balance,day/night threshold,tone mapping,exposure control(including automatic gain control),exposurezones,Forensic WDR:up to120dB depending on scene,finetuning of low-light behavior,defogging,dynamic text and imageoverlay,privacy masks,mirroring,rotation:0°,90°,180°,270°including Corridor FormatPan/Tilt/Zoom Digital PTZAudioAudio input/output Two-way audio connectivity via the optional AXIS T61Audio and I/O Interfaces with portcast technologyNetworkSecurity Password protection,IP address filtering,HTTPS a encryption, IEEE802.1x(EAP-TLS)a network access control,Digestauthentication,User access log,Centralized CertificateManagement,brute force delay protection,signed firmware,secure bootSupported protocols IPv4,IPv6USGv6,ICMPv4/ICMPv6,HTTP,HTTP/2,HTTPS a,SSL/TLS a,QoS Layer3DiffServ,FTP,SFTP,CIFS/SMB,SMTP, mDNS(Bonjour),UPnP®,SNMP v1/v2c/v3(MIB-II),DNS/DNSv6, DDNS,NTP,RTSP,RTP,SRTP,TCP,UDP,IGMPv1/v2/v3,RTCP, ICMP,DHCPv4/v6,ARP,SOCKS,SSH,SIP,LLDP,CDP,MQTT v3.1.1, Syslog,Link-Local address(ZeroConf)System integrationApplication Programming Interface Open API for software integration,including VAPIX®and AXIS Camera Application Platform;specifications at One-Click Cloud ConnectionONVIF®Profile G,ONVIF®Profile S,and ONVIF®Profile T, specification at Support for Session Initiation Protocol(SIP)for integration with Voice over IP(VoIP)systems,peer to peer or integrated with SIP/PBX.Event triggers Analytics,Edge storage events,Virtual inputs through API Event actions Record video:SD card and network shareUpload of images or video clips:FTP,SFTP,HTTP,HTTPS,networkshare,and emailPre-and post-alarm video or image buffering for recording oruploadNotification:email,HTTP,HTTPS,TCP,and SNMP trapOverlay textData streaming Event dataBuilt-ininstallation aidsPixel counter,adjustable IR-illumination intensityAnalyticsApplications IncludedAXIS Motion Guard,AXIS Fence Guard,AXIS Loitering GuardAXIS Video Motion Detection,active tampering alarmSupport for AXIS Camera Application Platform enablinginstallation of third-party applications,see /acap GeneralCasing IP66-and NEMA4X-rated,IK08impact-resistant casingEncapsulated electronics and captive screws(Torx10)Color:white NCS S1002-BFor repainting instructions and impact on warranty,contactyour Axis partnerSustainability PVC freePower Power over Ethernet(PoE)IEEE802.3af/802.3at Type1Class3Typical:3.7W,Max.:8.7WConnectors RJ4510BASE-T/100BASE-TX PoEAudio and I/O connectivity via the optional AXIS T61Audio andI/O Interfaces with portcast technologyIR illumination Power-efficient,long-life850nm IR LED.Range of reach20m(65ft)or more depending on the sceneStorage Support for microSD/microSDHC/microSDXC cardSupport for SD card encryption(AES-XTS-Plain64256bit)Recording to network-attached storage(NAS)For SD card and NAS recommendations see Operatingconditions-30°C to50°C(-22°F to122°F)Start-up temperature:-20°C to50°C(-4°F to122°F)Humidity10–100%RH(condensing)Storageconditions-40°C to65°C(-40°F to149°F)Humidity5-95%RH(non-condensing)Approvals EMCEN55024,EN55032Class A,EN55035,EN61000-6-1,EN61000-6-2,FCC Part15Subpart B Class A,KC KN32Class A,KC KN35,RCM AS/NZS CISPR32Class A,ICES-3(A)/NMB-3(A),VCCI Class AEnvironmentIEC60068-2-1,IEC60068-2-2,IEC60068-2-78,IEC60068-2-14,IEC60068-2-6,IEC60068-2-27IEC/EN62262IK08,IEC/EN60529IP66,NEMA250Type4XSafetyIEC/EN/UL60950-22,IEC/EN/UL62368-1,IEC/EN62471,IS13252NetworkNIST SP500-267,IPv6USGv6Dimensions Height:94mm(3.7in)ø101mm(4.0in)Weight390g(0.85lb)IncludedaccessoriesInstallation Guide,Windows decoder1-user license,Torx®L-key,Connector guard,Cable gasketOptionalaccessoriesAXIS T94B02D Pendant kit,AXIS T94B01P Conduit Back Box,AXIS T94B02M J-Box/Gang Box Plate,AXIS TM3807Black Casing,Axis Mounts,AXIS Surveillance microSDXC™Card,AXIS Weathershield Kit C,AXIS T61Audio and I/O Interface SeriesFor more accessories,see VideomanagementsoftwareAXIS Companion,AXIS Camera Station,Video managementsoftware from Axis’Application Development Partners availableon /vmsLanguages English,German,French,Spanish,Italian,Russian,SimplifiedChinese,Japanese,Korean,Portuguese,Traditional ChineseWarranty5-year warranty,see /warrantya.This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit.(),and cryptographic software written by Eric Young(*****************).Environmental responsibility: /environmental-responsibility©2019-2021Axis Communications AB.AXIS COMMUNICATIONS,AXIS,ARTPEC and VAPIX are registered trademarks ofAxis AB in various jurisdictions.All other trademarks are the property of their respective owners.We reserve the right tointroduce modifications without notice.T10138830/EN/M15.2/2110。

JBL AC2212 00 两路扬声器说明说明书

AC2212/00 Compact 2-Way Loudspeakerwith 1 x 12” LFKey Features:u100° x 100° Coverage.u P T™ Progressive Transition™Waveguide for good pattern controlwith low distortion.u B i-Amp/Passive Switchable.u O ptional U-Bracket for easy installation.u O ptional planar array frame kit(see AE Series Array Guide).Applications:u L ecture hallsu H ouses of worshipu C orporate learning centersu S mall performing arts facilitiesu T heatrical sound designu A uditoriumsu S ports facilitiesu T hemed entertainment venuesAC2212/00 is a compact 2-way full-range loudspeaker system comprised of one 300 mm (12 in) low frequency drive r and one 38 mm (1.5 in) exit/ 44 mm (1.75 in) voice-coil compression driver. The PT Progressive Transition waveguide provides wide 100° by 100° coverage. High-slope passive crossovers minimize band overlap.The cabinet is fitted with M10 threaded suspension points. Optional U-bracket, as well as pre-engineered array bracketryis available for easy installation. Four threaded inserts located on back ofthe enclosure allow attachment of an Omnimount™ or simila r mounting bracket.AC2212/00 is part of JBL’s AE Application Engineered Series, a versatil e family of loudspeakers for a wide variety of fixed installation application s.Specifications:System:Frequency Range1 (-10 dB): 50 Hz – 19 kHzFrequency Response1 (±3 dB): 55 Hz – 17 kHzCoverage Pattern: 100° x 100°Directivity Factor (Q): 7.1Directivity Index (DI): 8.5 dBCrossover Modes: Bi-amp/Passive switchablePassive Crossover Slopes2: 4th order (24 dB/oct) Transitional HP & LP, 1.3 kHzTransducer Power Rating (AES)3: L F: 300 W (1200 W peak), 2 hrs250 W (1000 W peak), 100 hrsHF: 50 W (200 W peak), 2 hrsLong-Term System Power Rating (IEC)4: Passive mode: 250 W (1000 W peak), 100 hrsMaximum SPL5: B i-amp mode:LF: 120 dB-SPL cont avg (126 dB peak)HF: 126 dB-SPL cont avg (132 dB peak)Passive mode:120 dB-SPL cont avg (126 dB peak)System Sensitivity6 (1W @ 1m): Passive mode: 95 dB SPLTransducers:Low Frequency Driver: 1 x JBL M112-8 300 mm (12 in) driver with 63 mm (2.5 in) voice coilNominal Impedance: 8 ohmsSensitivity6 (1W @ 1m, within operational band): 95 dB SPLHigh Frequency Driver: J BL 2418H-1/MTA, 38 mm (1.5 in) exit compression driver, 44 mm(1.75 in) voice coilNominal Impedance: 8 ohmsSensitivity (1W @ 1m): 109 dB SPLWaveguide: PT-F1010HFPhysical:Enclosure: T rapezoidal with 15 degree side angles, 16 mm (5/8 in) exterior grade11-ply Finnish birch plywoodSuspension Attachment: 15 points (4 top, 4 bottom, 2 each side, 3 rear), M10 threaded hardware.4 x M8 on rear for MultiMount® MM-022-BT,MM-024-BT, or MM-020-CMFinish: Black DuraFlex™ finish. White available upon request.Grille: P owder coated 14 gauge perforated steel, with acoustically transparentblack foam backing.Input Connector: N L4 Neutrik Speakon® and CE-compliant covered barrier stripterminals. Barrier terminals accept up to 5.2 sq mm (10 AWG) wire ormax width 9 mm (.375 in) spade lugs. Speakon in parallel with barrierstrip for loop-through.Environmental Specifications: Mil-Std 810; IP-x3 per IEC529.Dimensions (H x W x D): 548 x 355 x 352 mm(21.6 x 14.0 x 13.9 in)Net Weight: 19.1 kg (42 lb)Optional Accessories: M10 x 35 mm forged shoulder eyebolts with washersU-Bracket MTU-4Optional planar array frame kit. See AE Series Bracket GuideBi-amp mode, with recommended active tuning.Resultant engineered acoustical response of crossover network and components.AES standard, one decade pink noise with 6 dB crest factor within device’s operational band, free air. Standard AES 2 hr rating pluslong-term 100 hr rating are specified for low-frequency transducers.IEC standard, full bandwidth pink noise with 6 dB crest factor, 100 hours.Calculated based on power rating and sensitivity, exclusive of power compression.Anechoic sensitivity in free field, no additional sensitivity gain from boundary loading.JBL continually engages in research related to product improvement. Changes introduced into existing products without notice arean expression of that philosophy.u AC2212/00 Compact 2-Way Loudspeaker with 1 x 12” LFHorizontal 1/3 Octave PolarsSS AC2212/00CRP 10M 8/16u AC2212/00 Compact 2-Way Loudspeaker with 1 x 12” LFVertical 1/3 Octave PolarsJBL Professional 8500 Balboa Boulevard, P.O. Box 2200Northridge, California 91329 U.S.A.© Copyright 2016 JBL ProfessionalA Harman International Company。

SoundPoint IP 670 多线 Voice over IP 电话快速启动指南说明书

SoundPoint® IP 670 Quick Start GuideDeskmount Method Attach Base StandAfter it has been connected to the network and supplied with power, the SoundPoint IP 670 automatically begins a process of establishing itself on the networkFor more information, see the SoundPoint IP 670 User Guide , available online at:/StartupLIMITED WARRANTY. Polycom warrants to the end user (“Customer”) that this product will be free from defects in workmanship and materials, under normal use and service, for one year from the date of purchase from Polycom or its authorized reseller. Polycom’s sole obligation under this express warranty shall be, at Polycom’s option and expense, to repair the defective product or part, deliver to Customer an equivalent prod-uct or part to replace the defective item, or if neither of the two foregoing options are rea-sonably available, Polycom may, on its sole discretion, refund to Customer the purchase price paid for the defective product. All products that are replaced will become the prop-erty of Polycom. Replacement products or parts may be new or reconditioned. Polycom warrants any replaced or repaired product or part for ninety (90) days from shipment, or the remainder of the initial warranty period, whichever is longer.Products returned to Polycom must be sent prepaid and packaged appropriately for safe shipment, and it is recommended that they be insured or sent by a method that provides for tracking of the package. Responsibility for loss or damage does not transfer to Poly-com until the returned item is received by Polycom. The repaired or replaced item will be shipped to Customer, at Polycom’s expense, not later than thirty (30) days after Polycom receives the defective product, and Polycom will retain risk of loss or damage until the item is delivered to Customer.EXCLUSIONS. Polycom will not be liable under this limited warranty if its testing and examination disclose that the alleged defect or malfunction in the product does not exist or results from:•Failure to follow Polycom’s installation, operation, or maintenance instructions.•Unauthorized product modification or alteration.•Unauthorized use of common carrier communication services accessed through the prod-uct.•Abuse, misuse, negligent acts or omissions of Customer and persons under Customer’s control; or•Acts of third parties, acts of God, accident, fire, lightening, power surges or outages, or other hazards.WARRANTY EXCLUSIVE. IF A POLYCOM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT POLYCOM’S OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHER-WISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIP-TION, AND NON-INFRINGEMENT, ALL OF WHICH ARE EXPRESSLY DISCLAIMED. POLYCOM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS.SERVICE AGREEMENTS. Please contact your Polycom Authorized Reseller for information about service agreements applicable to your product.SOFTWARE SUPPORT. Polycom will provide support for software running on the Product if all of the following conditions are satisfied:• The product is under warranty or is covered by a Polycom service contract;• The product is operating on a Polycom-approved partner platform; and• The product software is the current major version or the next preceding major version (software revisions are labeled as “x.y.z,” with the first two digits designating major ver-sions).• The product software comes with 90-day software warranty, providing for software updates (minor releases/bug fixes). To continue to receive support, purchasing a mainte-nance contract is the most economical solution.Requests for software support should be made through the Polycom Reseller from whom the product was purchased.LIMITATION OF LIABILITY. TO THE FULL EXTENT ALLOWED BY LAW, POLYCOM EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSI-NESS, LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF POLYCOM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT POLY-COM’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE. DISCLAIMER. Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers, or the limitation of liability for personal injury, so the above limitations and exclusions may be limited in their application to you. When the implied warranties are not allowed to be excluded in their entirety, they will be limited to the duration of the applicable written warranty. This warranty gives you specific legal rights which may vary depending on local law.GOVERNING LAW. This Limited Warranty and Limitation of Liability shall be governed by the laws of the State of California, U.S.A., and by the laws of the United States, excluding their conflicts of laws principles. The United Nations Convention on Contracts for the Inter-national Sale of Goods is hereby excluded in its entirety from application to this Limited Warranty and Limitation of Liability. All rights reserved under International and Pan-American Copyright Conventions. No part of the contents of this manual may be copied, reproduced, or transmitted in any form or by any means, or translated into another lan-guage or format, in whole or part, without written consent from Polycom, Inc. Do not remove (or allow anybody else to remove) any product identification, copyright or other notices. Polycom, the Polycom logo design, and SoundPoint are trademarks of Polycom, Inc. in the U.S. and various other countries.Warranty, Copyright, Safety NoticesSAFETY AND REGULATORY INFORMATION. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:(1) This device may not cause harmful interference, and (2) This device must accept any interferences received, including interference that may cause undesired operation. Note: This equipment is tested and complies with the limits for a Class B digital device, pur-suant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protec-tion against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful Interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:1. Reorient or relocate the receiving antenna.2. Increase the separation between the equipment and receiver.3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.4. Consult the dealer or an experience radio/TV technician for help.This SoundPoint IP 670 is marked with the CE mark. This mark indicates compliance with EC Directives 2006/95/EC and 2004/108/EC. A full copy of the Declaration of Confor-mity can be obtained from Polycom Ltd., 270 Bath Road, Slough, Berkshire, SL1 4DX, UK. In accordance with Part 15 of the FCC Rules, the user is cautioned that any changes or modifications not expressly approved by Polycom, Inc. could void the user’s authority to operate the equipment. Installation must be performed in accordance with all relevant national wiring rules. L’Installation doit être exécutée conformément à tous les règlements nationaux applicable au filage électrique.The outlet to which this apparatus is connected must be installed near the equipment and must always be readily accessible.La prise électrique à laquelle l’appareil est branché doit être installée près de l’équipe-Cet appareil numérique de la classe [B] sera conforme à la norme NMB-003 du Canada. To avoid electric shock, do not connect safety extra low voltage (SELV) circuits to telecon-ference station network (TNV) circuits. LAN ports contain SELV circuit, and WAN ports con-tain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when connecting cables.This product is rated 48Vdc, 0.375A. When used with the optional external power supply, the power supply shall be a Listed power supply with a LPS output, rated 48V, min. 0.375AContact Information:Please contact your Polycom Authorized Reseller for assistance.Polycom, Inc. 4750 Willow Road, Pleasanton, CA 94588-2708 USA1725-12677-001 Rev. ACOPYRIGHT. All rights reserved under International and pan-American Copyright Conven-tions. No part of the contents of this manual may be copied, reproduced, or transmitted in any form or by any means, or translated into another language or format, in whole or part, without written consent of Polycom, Inc. Polycom® and the logo design are registered trademarks and Polycom SoundPoint IP 670 is a trademark of Polycom, Inc. in the United States, and various countries.Do not remove (or allow any third party to remove) any product identification, copyright or other notices.。

IgorPro中文操作手册-1

Waves —Igor 的关键概念 ........................................................................................................................ 2 对象之间的关联 ....................................................................................................................................... 3 更多对象 .................................................................................................................................................. 3 Igor 工具箱 ................................................................................................................................................... 4 内建程序 .................................................................................................................................................. 4 用户自定义程序 ....................................................................................................................................... 4 Igor 扩展 ................................................................................................................................................... 5 Igor 的用户界面 ........................................................................................................................................... 5 命令窗口 .................................................................................................................................................. 5 菜单，对话框和命令行 ........................................................................................................................... 5 使用 Igor 进行深重度工作 .......................................................................................................................... 6 Igor 文档 ....................................................................................................................................................... 6 Igor 提示 (针对 Macintosh 电脑)............................................................................................................. 7 状态行帮助，工具提示，和上下文链接帮助 (针对 Windows 电脑) .................................................. 7 Igor 帮助系统 ........................................................................................................................................... 7 Igor 手册 ................................................................................................................................................... 7 Igor 学习 ....................................................................................................................................................... 8 经验分享 ...................................................................................................................................................... 8

ADAM AUDIO A7X、SUB8和SUB-15音频监听器说明书

Follow Us!ADAM AUDIO A7X, SUB8 & SUB-15 STUDIO MONITORS The A7X matches the X-ART (Extended Accelerated Ribbon Technology – up z) tweeter with a state-of-the art 7" woofer. The woofer has been redesigned with a much bigger voice coil (1.5") and is driven by an amplifier with twice the power of its predecessor. This combination produces an amazing A7X SUB8The F5 and F7 near-field monitors feature a newly designed version of the ADAM proprietary Accelerating Ribbon duce high frequencies with airiness, clarity, and detail The A3X is the smallest monitor offered by Adam, and is perfectly suited for all environments where space is ers directly. The front of the A3X sports dual ports for low frequency response down to 60Hz as well as power and gain controls. The rear panel includes balanced (XLR) jacks, unbalanced (RCA) jacks, and tweeter ers allowing you to control the overall stereo volume of the system from either speakers gain control. The A3X features the X-ART tweeter (Accelerating Ribbon Prices subject to change without notice. Call today or visit us online!KIT ACTIVe STUDIO MO NITO RS These monitors feature improved speaker voicing, a recessed high-frequency waveguide, and new 1" neodymium “Soft Dome” tweeters. The curved front surface prevents diffraction issues that arise from rectangular designs. Other features include an active crossover, high frequency output level adjustment, front-firing bass ports, and input volume control. Features KRK’s signature woven-glass yellow woofers with a tight, clear low-end response. RP10-3 offers a unique rotatable housing that allows the acoustic axis to maintain orientation regardless of mounting position. Sold as single unitsITEM DESC R IPTION P R ICE ......................5" 2-way active monitor , 50W (each) .........................................149.50......................6" 2-way active monitor, 73W (each) ..........................................199.50......................8" 2-way active monitor, but 100W (each) ..................................249.50......................10" 3-way active monitor, 140W (each) ......................................499.00154Follow Us!We Stock Thousands of Common and Hard-to-Find Parts! Search for Parts on our website: /parts A 5.2" Crimson woofer and tuned 1" urethane film-laminated polyester fiber dome tweeter are combined with a digital FIR-type filter to reproduce sounds faithfully in these bi-amped near-field monitors. The rear panel offers an XLR-1/4" combo jack and RCA input as well as flexible 44-step FOSTeX PM641 & PM841 STUDIO MONITORS fied monitors come with a built-in channel divider that provides ideal overlapped frequency crossover points. The woofer and midrange drivers are constructed of highly elastic Kevlar, while the tweeter diaphragm fier with a 4" full-range driver in a compact monitor, the 6301 series is the perfect choice for a multitude of settings. The 6301B monitors accept any line-level signal and have an additional XLR input as well as an external headphone jack. The 6301D adds AES/EBU digital inputs. P R ICE FOSTeX RM2 RACKMOUNT STeReO MONITOR A 1RU magnetically shielded GeNeleC 8200/7200 BIAMPlIFIeD DSP MONITORING SYSTeMS 82407270N e W !N e Wvides ultra-flat response, extraordinary SPL capability, andtechnology to optimize performance in any size production environment. All models are shielded, ready for mounting andTHX® pm3™ approved. Linear Spatial Reference Technology ensures that the speakers sound flat at the mix position. The LSR6328P and LSR6312SP Subwoofer are equipped with RMC – JBL’s ingenious method of zeroing-out bass problems at the mix position caused by room modes. A built-in 1/10th octave parametric equalizer allows you to correct problems below 100Hz. The LSR6325P and LSR6332 enjoy the benefits of RMC (Room Mode Correction) when used in a system with the LSR6312SP Subwoofer. Enclosures are reinforced and mounting fessional featureset make the Control 2P ideal for desktop recording and video production, AV presentations, professional broadcast applications, and monitoring of electronic musical instruments. The 5.25" woofers and .75" dome tweeters are paired with a 35W per channel amplifier. XLR and GeNeleC M-SeRIeSRS156Follow Us!Commercial Lease-To-Own financing for businesses available! Contact your Sales Pro for details.MACKIe MR-MK3 SeRIeSACTIVe ReFeReNCeMONITORS Mackie’s MRmk3 powered stu-dio monitors are specifically voiced to reveal the full range and natural character of your music. Optimized features include an enhanced waveguide system for a wider sweet spot and custom-tuned rear porting for smooth, extended bass response. MR5-MK3 has a 5.25" LF driver, 1" silk-dome HF driver and 50W of power. MR6-MK3 has a 6.5" LF driver, 1" silk-dome HF driver and 65W of power. MR8-MK3 has an 8" LF driver, 1" silk dome HF driver and 85W of power. Lastly, the MR10S-MK3 subwoofer has a 10" glass aramid composite LF driver and 120W of power.ITEM DESC R IPTION P R ICE MR5-MK3 ..................Active monitor, 5.25" 2-way, 50W ...............................................149.99MR6-MK3 ..................Active monitor, 6.5" 2-way, 65W .................................................199.99MR8-MK3 ..................Active monitor, 8" 2-way, 85W ....................................................249.99MR10S-MK3 ..............Active sub, 10", 120W .................................................................349.99M3-6 AND M3-8 Superior three-way sound, improved fidelity, enhanced imaging and a super-wide sweet spot are a few features of these active monitors. With the mid- and high-frequency drivers mounted inline, the sound is presented on the same focal plane, allowing for improved time-alignmentMONKeY BANANA TURBO SeRIeSDIGITAl ACTIVe NeAR-FIelD MONITORS These enclosures were designed as a non-regular hexagon instead of the typical rectangle in order to minimize standing waves inside the enclosure. High-density fiberboard (MDF) is used for the enclosure to not only damp out unwanted reso-nances, but to ensure a solid and inert structure for driver mounting. All internal surfaces are lined with blended wool to further dampen the structure of the speaker cabinet. The Turbo 4 has 30W LF and 20W HF amplifiers with 4" and 1" drivers. The Turbo 5 has 50W LF and 30W HF amplifiers with 5" and 1" drivers. The Turbo 6 has 60W LF and 30W HF amplifiers with 6.5" and 1" drivers. The Turbo 8 has 80W LF and 30W HF amplifiers with 8" and 1" drivers. All LF drivers are constructed of PP carbon fiber/ceramic composite cones and all HF drivers consist of high quality 1" silk tweeters.ITEM DESC R IPTION P R ICE MB230046.................Active digital near field monitor, 5.5", black ..............................299.99MB230039.................As above, in red ..........................................................................299.99MB230060.................Active digital near field monitor, 6", black .................................399.99MB230053.................As above, in red ..........................................................................399.99MB230107.................Turbo 10 active digital subwoofer, 10", black .............................999.99MB230091.................As above, in red ..........................................................................999.99N e W N e W !N e W !TANNOY ReVeAl SeRIeS ACTIVe MONITORS Decades of speaker design experience has gone into these compact, yet powerful active near-field monitors that perform well above their price range. Some features include a wide and detailed sweet spot, front-firing bass port, speaker position compensation, volume and EQ controls, 1/8" Aux in jack for tablets and smartphones, active crossover filter and isolating padded rubber base. The 50W REVEAL-402 has a 56Hz-48kHz frequency response, due to its 4" woofer and 3/4" soft dome tweeter while the 100W REVEAL-802 generates from 42Hz-43kHz courtesy of its 8" woofer and 1" soft dome tweeter. I/O includes XLR and 1/4" inputs, 1/8" aux in and 1/8" monitor link.ITEM DESC R IPTION P R ICE REVEAL-402 ..............4" 2-way active monitor, 50W .....................................................139.99REVEAL-802 ..............8" 2-way active monitor, 100W ...................................................279.99eVe AUDIO 2-WAY P O WeReD M O NIT O RS Quality powered monitors with high resolution DSP, a rear rectangular port for efficient low frequencies, a PMW amp that features plenty of power and proprietary AMT tweeters (Air Motion Transfer). The SC204 is the smallest speaker in this line, with threaded screw inserts on the bottom for mic stand mounting and a 4" SilverCone woofer with honeycomb structured diaphragm. The SC205 has a 5" honeycomb woofer, and also includes threaded mounting inserts on the bottom. The SC207 has a 6.5" honeycomb woofer with extended bass. The SC208 has an 8" woofer with extended lows down to 36Hz, potentially removing the need for an external subwoofer. All speakers have RCA and XLR inputs. Visit to see the full EVE Audio line.ITEM DESC R IPTION P R ICE SC204 .......................2-way active monitor, 64Hz-21kHz (each) ..................................429.00SC205 .......................5" 2-way active monitor, 53Hz-21kHz (each) ..............................579.00SC207 .......................6.5" 2-way active monitor, 44Hz-21kHz (each) ...........................849.00SC208 .......................8" 2-way active monitor, 36Hz-21kHz (each) ..............................999.00ACTUAl™ bines DSP time-correction and point source powered Fulcrum Acoustic's TQ™ Temporal YAMAHA HS SeRIeS POWeReD MONITORS These near-field studio reference monitors are the active descendants of the NS-10M’s that so many people use for referencing their mixes. They are available in three sizes: 5", 6.5" and 8". The HS5 is a 70 watt monitor with 5" woofer. The HS7 95 watt monitor has a 6.5" woofer. The HS8 has 150 watts into an 8" woofer. All three monitors are bi-amped and have a 1" dome tweeter and feature white cone woofers, room control, EQ high trim, and room con-trol switches. Connections include one XLR and one 1/4" input. HS8S is a companion 120W, 8" bass-reflex subwoofer. Controls for the HS8S include master level, phase and low/high cutoff frequency. Connections include two XLR inputs, two 1/4" inputs and three balanced XLR outputs.ITEM DESCR IPTION PR ICE HS5 ...........................5" active studio monitor (each) ...................................................199.99!。

EVO 4 2in 2out 錄音介面使用說明書说明书

2in/2out 錄音介面使用說明書歡迎歡迎E V O m a k e s r e c o r d i n g e a s y4前級放大器，一你進行創作工作！Work smarter not harder.歡迎頁次頁次10 韌體更新步驟11 入門/基本設定07軟體功能顯示Loopback 訊源關於EVO造訪EVO 知識庫檢查更新設定ASIO Buffer Size 大小設定取樣率08 Loopback在Mac 上使用Loopback 功能在Windows 上使用Loopback 功能12保固資訊保固聲明保固限制05 註冊ARC 02 安全守則03 符合性聲明04 安裝/設定01總覽06硬體功能立體聲鏈接幻象電源樂器輸入智能靜音監聽混音音量控制靜音智能增益音軌通道 1 + 2 監聽混音+ Pan 幻象電源音量旋鈕輸出音量09規格總覽24631505 音量旋鈕一鍵控制喇叭，耳機和所有聲道。

01 智能增益只需開始彈奏或唱歌，Smartgain 模式將自動完美設置麥克風音量。

03 監聽混音 + 監聽 Pan在輸出和輸入之間混音-非常適合錄製時最小化延遲。

使用Monitor Pan 設定訊號輸入在左或右以創造理想的耳機平衡。

為麥克風提供最佳性能所需的電源功率.04 USB 真幻象供電設置耳機或喇叭的音量。

06 輸出音量按鈕02 輸入音軌 1 + 2控制輸入電平，連接到Smartgain 或按住個別按鈕將其靜音。

OVERVIEW總覽總覽重要安全訊息在連接USB 線和接通EVO 4的電源之前，請閱讀所有這些說明並保存以備後用。

EVO 4本身不能在設備內部使用任何高壓主電源的情況下運行，但仍應採取適當的安全措施以防止觸電和火災。

如果設備發生故障，請勿嘗試自己打開EVO 4。

請聯繫Audient 維修人員，以便採用合適的方法可以建議修理或更換。

如果有困難，請諮詢合格的技術人員。

連接或斷開連接時，請勿嘗試修改設備-危害健康安全規範安全規範為了減少火災或電擊的危險，請勿將本設備暴露於雨水或濕氣中內部沒有用戶可維修的零件請把維修交給合格的維修人員警告01閱讀這些說明02遵守這些指示03注意所有警告04遵循所有指示05請勿在水附近使用本設備06僅用乾布清潔07請勿將其安裝在任何熱源附近，例如散熱器，蓄熱器，火爐或其他產生熱量的設備（包括放大器）08保護線材不被踩踏或擠壓，特別是在便利插座上以及從設備引出的地方09僅使用製造商指定的附件/配件10在雷雨天或長時間不使用電腦時，請關閉電腦並拔下設備的電源11將所有服務交給合格的服務人員。

雅马哈 RX-V471中文使用说明书

连接电视 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
连接播放装置. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
连接视频装置（如 BD/DVD 播放机）. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 连接音频装置（如 CD 播放机）. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 连接到前面板上的插孔. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
部件名称和功能 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

移动通信缩略语

移动通信缩略词AAAA Authentication, Authorization and Accounting 鉴权，认证和计费AAL2 ATM Adaptation Layer type 2 ATM设配层类型2AAL5 ATM Adaptation Layer type 5 ATM设配层类型5AC Access Channel 接入信道Authentication Center 鉴权中心ACA Adaptive Channel Assignment 自适应信道分配ACI Adjacent Channel Interference 邻信道干扰ACK Acknowledgement 确认AF Adapt Function 适配功能AGCH Access Grant Channel 接入许可信道AGC Automatic Gain Control 自动增益控制ALBALCAP Access Link Control Application Protocol 接入链路控制应用协议AMR Adaptive MultiRate 自适应多速率AMPS Advanced Mobile Phone System 先进移动电话系统AN Access Network 接入网ANSI American National Standards Institute 美国国家标准协会AP Access Point 接入点APBE ATM处理板APC Adaptive Predictive Coding 自适应预测编码API Application Program Interface 应用编程接口ARQ Automatic Repeat Request 自动重发请求AS Application Server 应用服务器ASCII American Standard Code for Information 美国信息交换标准码ASIC Application Specific Integrated Circuit 专用集成电路ASP Application Server Process 应用服务器进程ASP Access Service Provider 接入服务提供商ATM Asynchronous Transfer Mode 异步传输模式AUC或AC Authentication Center 鉴权中心AWGN Additive White Gaussian Noise 加性高斯白噪声BBAS Broadband Access Service 管带接入服务器BC Billing Center 计费中心B-CDMA Broad-band Code Division Multiple Access 管带码分多址BCCH Broadcast Control Channel 广播控制信道BCFE Broadcast Control Functional Entity 广播控制功能实体BCH Broadcast Channel 广播信道BER Bit Error Rate 误比特率（误码率）BICC Bearer Independent Call Control 与承载无关的呼叫控制BIOS Basic Input Output System 基本输入/输出系统BITS Building Integrated Timing Supply System 通信楼综合定时供给系统B-ISDN Broad-band ISDN 管带ISDNBIU Base Station Interface Unit 基站接口单元BLER Block Error Rate 误块率BMC Broadcast/Multicast Control 广播/组播控制BS Base Station 基站BS Billing System 计费系统BSC Base Station Controller 基站控制器BSIC Base Station Identity Code 基站识别码BSS Base Station Sub-system 基站子系统BSSAP Base Station Subsystem Application Part 基站子系统应用部分BTS Base Transceiver Station 基站收发信机CCA Capacity Allocation 容量分配CAA Capacity Allocation Acknowledgement 容量分配确认CAI Common Air Interface 公共空中接口CAP CAMEL Application Part CAMEL 应用部分CAMEL Customized Applications for MobileEnhanced Logic 用于移动增强逻辑的用户应用CAR Committed Access Rate 约定接入速度CBC Cell Broadcast Centre 小区广播中心CC Call Control 呼叫控制CCCH Common Control Channel 公共控制信道CCF Conditional Call Forwarding 条件呼叫前传CCF Call Control Function 呼叫控制功能CCH Control Channel 控制信道CCI Co-Channel Interference 共（同）信道干扰CCIR Consultative Committee for InterferenceRadio communication 国际无线电通信咨询委员会CCITT International Telegraph and TelephoneConsultative Committee 国际电报电话咨询委员会CCPCCPCH Common Control Physical Channel 公共控制物理信道CCTrCH Coded Composite Transport Channel 编码合成传输信道CDMA Code Division Multiple Access 码分多址接入CDPD Cellular Digital Packet Data 蜂窝数字分组数据CDVT Cell Delay Variation Tolerance 信元时延抖动容限CFB Call Forwarding on mobile subscriber Busy 遇忙前传CFN Connect Frame Number 连接帧号CFU Call Forwarding Unconditional 无条件呼叫前传CELLCELP Code Excited Linear Predictor 码激励线性预测编码器CG Charging Gateway 计费网关CGF Charging Gateway Functionality 计费网关功能实体CHUB 交换板CLKG 时钟板CM Connection Management 连接管理CMM Capability Mature Model 能力成熟度模型CN Core Network 核心网CNAP Calling Name Presentation 主叫号码显示C/I Carrier-to-Interference Ratio 载干比CO Center Office 中心局CPCH Common Packet Channel 公共分组信道CPICH Common Pilot Channel 公共导频信道CPLD Complex Programmable Logical Device 可编程逻辑器件CPU Central Processing Unit 中央处理器CQT Call Quality Test 呼叫质量测试CRC Cyclic Redundancy Code 循环冗余码CRC Cyclic Redundancy Check 循环冗余校验CRNCCS Circuit Switch 电路交换（域）CSE CAMEL Service Environment CAMEL 服务环境CSI CAMEL Subscription Information CAMEL用户签约信息CTCH Common Traffic Channel 公共业务信道CTDMA Code Time Division Multiple Access 码分·时分多址CUG Closed User Group 闭合用户群CW Continuous Wave 连续波CW Call Waiting 呼叫等待（补充业务）CWTS China Wireless Telecommunication 中国无线通信标准（组）DDAC Digital –Analog Converter 数模转换器D-AMPS Digital –Advanced Mobile Phone System 数字式先进移动电话系统DC Dedicated Control (SAP) 专用控制（SAP）DCA Dynamic Channel Allocation 动态信道分配DCCH Dedicated Control Channel 专用控制信道DCF Distributed Coordination Function 分布式协调功能DCFE Dedicated Control Function Entity 专用控制功能实体DCH Dedicated Channel 专用信道DCN Digital Communication Network 数字通信网络DCS Digital Communication System 数字通信系统DDN Defense Data Network 防卫数据网DECT Digital European Cordless Telephone 欧洲数字无绳电话DFT Discrete Fourier Transform 离散傅里叶变换DL Downlink（Forward link）下行链路(前向链路)DNS Domain Name Server 域名服务器DOA Direction Of Arrival 差异估计DoS Denial of Service 拒绝服务DPC Dedicated Physical Channel 专用物理信道DPC Destination Point Code 目的地信令点编码DPPCH Dedicated Physical Control Channel 专用物理控制信道DPCH Dedicated Physical Channel 专用物理信道DPDCH Dedicated Physical Data Channel 专用物理数据信道DR Digital Radio 数字无线电DRAC Dynamic Resource Allocation Control 动态资源分配控制DRNC Drift Radio Network Controller 漂移无线网络控制器DRX Discontinuous Reception 非连续接受DS-CDMA Direct Sequence Code Division Multiple Access 直扩序列码分多址DSCH Downlink Shared Channel 下行共享信道DSS1 Digital Subscriber Signaling No.1 1号数字用户信令（协议）DSSS Direct Sequence Spread Channel 专用业务信道DSP Data Signal Processor 数字信号处理器DT Drive Test 驱动测试DTDTB 数字中继板DTX Discontinuous Transmission 非连续发射DTCH Dedicated Traffic Channel 专用业务信道DwPTS Downlink Pilot Time Slot 下行导频时隙EEAP Extensible Authentication Protocol 可扩展认证协议EIA Electronic Industry Association 电子工业协会EIR Equipment Identity Register 设备设别寄存器EMC Electro Magnetic Compatibility 电磁兼容性EMS Element Management System 网元管理系统EMS Electro Magnetic Compatibility 电磁兼容性ESN Electric Sequence Number 电子序列号ERP Effective Radiated Power 有效辐射功率EVRC Enhanced Variable Rate Codec 增强可变速率声码器ETSI European Telecommunication Standard Institute 欧洲电信标准协会FFA Foreign Agent 外部代理FACH Forward Access Channel 前向接入信道FACCH Fast Associated Control Channel 快速辅助控制信道FAUSH Fast Uplink Signaling Channel 快速上行信令信道FBI Feedback Information 反馈信息FCA 固定信道分配FCC Federal Communication Committee 联邦通信委员会Forward Control Channel 前向控制信道FCCH Frequency Correction Channel 频率校正信道FCS Fame Check Sequence 帧检测序列FDD Frequency Division Duplex 频分双工FDDI Fiber Distributed Digital Interface 光纤分布式数字接口FDMA Frequency Division Multiple Access 频分多址FE Fast Ethernet 快速以太网FEC Forward Error Correction 前向纠错FER Frame Error Rate （前向）误帧率FES For Further Study 有待下一步研究FFT Fast Fourier Transform 快速傅里叶变换FH Frequency Hopping 调频FP Frame Protocol 帧协议FPACH Fast Physical Access Channel 快速物理接入信道FPLMTS Future Public Land Mobile Tele System 未来公共陆地移动通信系统FM Fault Management 故障管理FR Frame Relay 帧中继FTAM File Transfer、Access and Management 文件传输、存取（访问）与管理FTP File Transfer Protocol 文件传输协议FVC Forward Voice Channel 前向话音信道GGC General Control (SAP) 通用控制（SAP）GGSN Gateway GPRS Support Node 网关GPRS支持节点GE Gigabit Ethernet 千兆以太网GIS Graphical Information System 地理信息系统GIPI 吉比特以太网接口板GLIQVGMLC Gateway Mobile Location Center 网关移动位置中心GMM GPRS Mobility Management GPRS移动性管理GMT Greenwich Mean Time 格林尼治标准时间GMSC Gateway MSC 网关MSCGMSK Gaussian Minimum Shift Keying 高斯最小频移键控GoS Grade of Service 服务等级GP Guard Period 保护间隔（周期）GPRS General Packet Radio Service 通用分组无线业务GPS Global Positioning System 全球定位系统GRE Generic Routing Encapsulation 通用路由封装GSM Group Special Mobile 移动通信特别小组Global System for Mobile Communication 全球移动通信系统GSN GPRS Support Node GPRS支持节点GSPU GGSN Signaling Process Unit GGSN 信令处理单元GT Global Title 全球寻址码GTP GPRS Tunneling Protocol GPRS 隧道协议GTP-C GPRS Tunneling Protocol for control plane GPRS 隧道协议控制面GTP-U User Plane of GPRS Tunneling Protocol 隧道协议用户面GW Gate Way 网关HHCA 混合信道分配HDR High Data Rate 高数据率HLR Home Location Register 原籍（归属）位置寄存器HOLD Call Hold 呼叫保持HPLMN Home PLMN归属PLMNHSPA High Speed Packet Access 高速分组接入HSDPA High Speed Downlink Packet Access 高速下行分组接入HSUPA High Speed Uplink Packet Access 高速上行分组接入HTTP Hyper Text Transfer Protocol 超文本传输协议IICI Inter-Carrier Interference 子载波间的干扰ICMP Internet Control Message Protocol 因特网控制报文协议（Internet 控制消息协议）ICP Internet Content Provider 因特网提供商ID Identifier 识别码IDE Integrated Device Electronics 集成设备电路IEC International Electrotechnical Commission 国际电工委员会IEEE Institute of Electrical and Electronics Engineers 电气和电子工程师协会IETF Internet Engineering Task Force 因特网工程任务组IF Intermediate Frequency 中频iGWB iGateway Bill 计费网关II Intracell Interference 小区内部干扰II Intercell Interference 小区间干扰IM Inverse Multiplexing on ATM ATM反向复用IMAB IMA/ATM协议处理板IMEI International Mobile Equipment Identity国际移动终端设备标识IMSI International Mobile Subscriber Identity 国际移动用户标识IMT-2000 International Mobile Telecommunication 2000 国际通信系统2000 IN Intelligent Network 智能网IP Internet Protocol 因特网协议IPR Intellectual Property Rights 知识产权IPBCP IP Bearer Control Protocol IP承载控制协议IPCP IP Control Plane IP控制面IPOA IP Over ATM ATM承载IPISCP Interference on Signal Code Power 信号码功率干扰ISCP Interference Signal Code Power 干扰信号码功率ISDN Integrated Services Digital Network 综合业务数字网ISI Inter-Symbol Interference 符号（码）间干扰ISO International Standards Organization 国际标准化组织ISP Internet Service Provider 因特网业务提供商ISUP ISDN User Part(of signaling system No.7) （七号信令之）ISDN用户部分ITU International Telecommunications Union 国际电信联盟(国际电联)ITU-T ITU Telecommunication Standardization ITU电信标准化组（部）ITU-R International Telecommunication Union-RadioCommunication Sector 国际电联—无线电通信部门ITU-T International Telecommunication Union-Telecommunication standardization sector 国际电联—电信标准化部门Iu-UP Iu-UP Protocol Iu 接口用户面协议IWF Interworking Function 互通功能LL1 Layer1 (Physical layer) 第一层（物理层）L2 Layer2 (data link layer) 第二层（数据链路层）L3 Layer3 (network layer) 第三层（网络层）LAC Link Access Control 链路接入控制LAN Local Area Network 局域网LAI Location Areas Identity 位置识别码LBS Location Based Services 基于位置的业务（定位业务）LCD Liquid Crystal Display 液晶显示器LCS Location Services 位置业务LEC Local Exchange Carrier 本地电话公司LLC Logical Link Control 逻辑链路控制LMS Least Mean Square 最小均方值LMT Local Maintenance Terminal 本地维护终端LOS Local OMC Subsystem 本地OMC子系统LPC Linear Predictive Coder 线性预测编码器LPU Line interface Processing Unit 线路接口处理单元LTE Linear Transversal Equalizer 线性横向滤波器LTE 长期演进LTP Long Term Prediction 长期预测MMA Multiple Access 多址接入MAC Medium Access Control 媒体接入控制（层）MAHO Mobile Assisted Handoff 移动台辅助切换MAI Multiple Access Interference 多址干扰MAN Metropolitan Area Network 城域网MAP Mobile Application Part 移动应用部分MBS Mobile Broadband System 移动宽带系统MC-CDMA Multi-carrier Code Division Multiple Access 多载波码分多址MD Mobile Devices 移动设备MexE Mobile Station Application Execution Environment 移动基站应用执行环境MGW Media Gateway 媒体网关MIB Master Indication Block 复帧主指示块MIMO Multiple Input Multiple Output 多输入多输出MIP Mobile IP 移动IPMLSE Maximum Likelihood Sequence Estimation 最大似然序列估计MM Mobility Management 移动性管理MML Man Machine Language 人机语言MMSE Minimum Mean Square Error 最小均方差MNC Mobile Network Code 移动网络码MO Mobile Originated 移动台发起的MOHO Mobile Originated Handover 移动台发起的切换MPC Mobile Positioning Center 移动定位中心MPEG Moving Picture Experts Group 活动图像专家组MPLS Multi Protocol Label Switching 多协议标签交换MPTY Multi Party Service 多方通话补充业务MPU Main Processing Unit 主处理单元MRS Media Resource Server 媒体资源服务器MS Mobile Station 移动台（手机）MSC Mobile Switching Center 移动交换中心MSC Server Mobile Switch Center Server 移动交换中心服务器MSF Multiservice Switching Forum 多业务交换论坛MSI Mobile Subscriber Identity 移动用户识别码MSISDN Mobile Station International ISDN Number 移动台国际ISDN号码MSRN Mobile Station Roaming Number 移动用户漫游号码MT Mobile Terminal 移动终端MTP Message Transfer Part 消息传递部分MTP3bMUD Multi-user Detection 多用户检测MUI Mobile User Identifier 移动用户设别MUX Multiplexer 多路器MVPN Mobile Virtual Private Network 移动台虚拟专用网NNACK Negative Acknowledge 否定确认NAMPS Narrowband Advanced Mobile Phone System 窄带先进移动电话系统NAS Non Access Stratum 非接入层NAT Net Address Translation 网络地址转换NBAP Node B Application Protocol 基站应用协议N-CDMA Narrow-band Code Division Multiple Access 窄带码分多址NE Network Element 网元NFS Network File System 网络文件系统NI Network Interface 网络接口NID Network Identification Number 网络识别码N-ISDN Narrowband Integrated Service Digital Network 窄带综合业务数字网NLP No-Linear Processor 非线性处理器NM Network Management System 网管系统NNI Network Node Interface (Network-to-Network) 网络节点接口NP Network Processor 网络处理器NPC Network Parameter Control 网络参数控制NRT Non-Real Time 非实时NS Network Sub layer 网络子层NSAP Network Service Access Point 网络业务接入点NSAPI Network Service Access Point Identifier网络业务接入点标识NSP Network Synchronization Burst 网络同步突发NSS Network and Switching Subsystem 网络和交换子系统NTT Nippon Telephone and Telegraph 日本电话电报公司OOCCCH ODMA Common Control Channel ODMA 公共控制信道ODCCH ODMA Dedicated Control Channel ODMA专用控制信道ODCH ODMA Dedicated Transport Channel ODMA专用传输信道ODMA Opportunity Driven Multiple Access 伺机驱动多址接入ODTCH ODMA Dedicated Traffic Channel ODMA专用业务信道OEM Original Equipment Manufacturer 原设备制造商OFDM Orthogonal Frequency Division Multiplexing 正交频分复用OFDMA Orthogonal Frequency Division Multiple Access 正交频分多址接入O&M，OM Operations Maintenance 操作维护OMC Operation Maintenance Center 操作维护中心OMC-R Operation Maintenance Center-Ratio 无线设备操作维护中心OPC Originating Point Code 原信令点编码ORACH ODMA Random Access Channel ODMA 随即接入信道OSA Open Service Architecture 开放业务体系结构OSI Open System Interconnect 开放系统互连OSPF Open Shortest Path First 开放最短路径优先路由协议OSS Operation Support Subsystem 操作支持支持子系统OTDOAOVSF Orthogonal Variable Spread Factor（codes）正交可变扩频因子(码) PPABX Private Automatic Branch Exchange 专用自动小交换机PACS Personal Access Communication System 个人接入通信系统PAD Packet Assembler Disassemble 分组打包拆包器PBCC Packet Binary Convolution Coding 分组二进制卷积码PC personal Computer 个人计算机PC Power Control 功率控制PCCC Parallel Concatenated Convolutional Code 并行级联卷积码P-CCPCH Primary Common Control Physical Channel 主公共控制物理信道P-CPICH Primary Common Pilot Channel 主公共导频信道PCCH Paging Control Channel 寻呼控制信道PCF Packet Control Function 分组控制功能PCH Paging Channel 寻呼信道PCI Protocol Control Information 协议控制信息PCM Pulse Code Modulation 脉冲编码调制PCN Personal Communication Network 个人通信网PCPCH Physical Common Packet Channel 物理公共分组信道PCR Peak Cell Rate 信元峰值速率PCS Personal Communication System 个人通信系统PCU Packet Control Unit 分组控制单元PDA Personal Digital Assistant 个人数字助理PDC Personal Digital Cell 个人数字蜂窝PDCP Packet Data Convergence Protocol 分组数据汇聚协议PDN Packet Data Network 分组数据网PDP Packet Data Protocol 分组数据协议PDSCH Physical Downlink Shared Channel 物理下行共享信道PDSCH Physical Dedicated Shared Channel 物理专用共享信道PDU Protocol Data Unit 协议数据单元PhCH（PhyCH）Physical Channel 物理信道PHY Physical layer 物理层PHS Personal Handset System 个人便捷电话系统PI Page Indicatior 寻呼指示PICH Page Indication Channel 寻呼指示信道PID Process Identification 进程标识PIM Personal Information Management 个人信息管理PLD Programmable Logic Device 可编程逻辑器件PLMN Public Land Mobile Network 公共陆地移动网络PLMR Public Land Mobile Radio 公用陆地移动无线电PMR Private Mobile Radio 专用移动无线电PM Performance Management 性能管理PN Pseudorandom-noise 伪随机噪声PNFE Paging and Notification Control Function Entity 寻呼及通告控制功能实体POTS Plain Old Telephone Service 传统电话PPP Point-to-Point Protocol 点到点协议PPS PrePaid Service 预付费业务PQ Priority Queueing 优先队列PRACH Physical Random Access Channel 物理随即接入信道PRI Primary Rate Interface 基群速率接口PS Packer-Switched domain 分组交换域PSC Primary Synchronization Code 主同步码PSD Power Spectrum Density 功率谱密度PSPDN Packet Switched Public Data Network 分组交换公用数据网PSS Packet Service Subsystem 分组业务子系统PSTN Public Switched Telephone Network 公共交换电话网P-TMSI Packer Temporary Mobile Subscriber Identity 分组临时移动用户PR Packet Radio 分组无线电PU Payload Unit 有效载荷单元PUSCH Physical Uplink Shared Channel 物理上行共享信道PVC Permanent Virtual Channel 永久虚通道PVP Permanent Virtual Path 永久虚通路PWRDQQAM Quadruture Amplitude Modulation 正交振幅调制QoS Quality of Service 服务质量QCELP Qualcomm Code Excited Linear Predictive Qualcomm 码激励线性预测编码器QPSK Quadrature Phase Shift Keying 正交相移键控Q.2630.2Q.2150.1RRAB Radio Access Bearer 无线接入承载RACH Random Access Channel 随机接入信道RADIUS Remote Authentication Dial In User Service 远程拨号用户鉴权服务RAN Radio Access Network 无线接入网RANAP Radio Access Network Application Part 无线接入网应用部分RANSAP Iur接口控制面的最高的协议RAI Routing Area Identity 路由选择区域身份识别RAU 接入单元RB Radio Bearer 无线承载RCBRCC Reverse Control Channel 反向控制信道RUBRF Radio Frequency 射频RF Radio Frame 无线帧RFC Request for Comments 请求注解，Internet标准（草案）RFE Routing Functional Entity 路由选择功能实体RL Radio Link 无线链路RLC Radio Link Control 无线链路控制RLS Recursive Least Square 递归最小二乘RIP Routing Information Protocol 路由信息协议ROMBROMU 操作维护单元RPU 处理单元RPMU 外围设备监控单元RNC Radio Network Controller 无线网络控制器RNS Radio Network Subsystem 无线网络子系统RNTI Radio Network Temporary Identity 无线网络临时身份识别RNSAP Radio Network Subsystem Application Part 无线网络子系统应用部分RRC Radio Resource Control 无线资源控制RRM Radio Resource Management 无线资源管理RSCP Received Signal Code Power 接受信号码功率RSSI Radio Signal Strength Indication 接受信号强度指示RSU 交换单元RT Real Time 实时RTP Real-time Transport Protocol 实时传输协议RTCP Real-time Transport Control Protocol 实时传输控制协议RTT Radio Transmission Technology 无线传输技术RVC Reverse Voice Channel 反向话音信道RX Receiver 接收机RU Resource Unit 资源单元SSACCH Slow-Associated Control Channel 慢辅助控制信道SAP Service Access Point 服务接入点SC Scrambling Code 扰码SCCC Serial Concatenated Convolutional Code 串行级联卷积码SCCH Synchronization Control Channel 同步控制信道SCCP Signaling Connection Control Part 信令连接控制部分S-CCPCH Secondary Common Control Physical Channel 辅公共控制物理信道SCDMA Synchronous CDMA同步CDMASCF Service Control Function 业务控制功能SCFE Shared Control Function Entity 共享控制功能实体SCH Synchronization Channel 同步信道SCN Switched Circuit Network 电路交换网SCP Service Control Point 业务控制点S-CPICH Secondary Common Pilot Channel 辅公共控制信道SCR Sustainable Cell Rate 可持续信元速率SCS Service Capability Servers 业务能力服务器SCSI Small Computer Systems Interface 小型计算机系统接口SCTP Stream Control Transmission Protocol 流控制传输协议SDCCH Standalone Dedicated Control Channel 独立专用控制息道SDF Service Data Function 业务数据功能SDH Synchronization Digital ……… 同步数字序列SDMA Space Division Multiple Access 空分多址SDTBSDU Service Data Unit 业务数据单元SF Spreading Factor 扩频因子SFN System Frame Number 系统帧号SG/SGW Signaling Gateway 信令网关SGSN Service GPRS Support Node 服务GPRS支持节点SHCCH Shared Channel Control Channel 共享信道控制信道SID Station Identity 站标识System Identification Number 系统识别码SIM Subscriber Identity Module 用户识别模块SIR Signal –to-Interference Ratio 信号干扰比SM Security Management 安全管理SM Session Management 会话管理SMC Short Message Center 短消息中心SMS Short Message Service 短消息服务SMS-SC Short Message Service Center 短消息服务中心SN Series Number 序列号SNMP Simple Network Management Protocol 简单网管协议SNR Signal –to-Noise Ratio 信噪比SP Signaling Point 信令点SP Switching Point 交换点SPU Service Processing Unit 业务处理单元SRB Signaling Radio Bearer 信令无线承载SRF Specialized Resource Function 专用资源功能SRNC Serving Radio Network Controller 服务无线网络控制器SRNS Serving Radio Network Subsystem 服务无线网络子系统SRNS Serving Radio Network Controller 服务无线网络控制器SRU Switching and Routing Unit 交换和路由单元SS Synchronization Shift 同步偏移量SS7 Signaling System NO.7 七号信令系统SSC Secondary Synchronization Code 第二同步信道码SSDT Site Selection Diversity TPC 基站选择分集TPCSoft Switch 软交换机SSAP Session layer Service Access Point 会话层业务接入点SSCF Service Specific Co-ordination Function 特定业务协调功能SSCF-NNISSCF-UNISSCOP Service Specific Connection Oriented Protocol 特定服务的面向连接协议SSF Service Switching Function 业务交换功能SSM Synchronization Status Marker 同步状态标志ST Signaling Tone 信令音STC Signaling Transport Convert 信令传输转换STM-1 Synchronization Transfer Mode 1 同步传输模式1SUD Single-user Detection 单用户检测SYNC-DL 下行同步序列SYNC-UL 上行同步序列TTACS Total Access Communication System 全接入通信系统TB Transport Block 传输块TCH Traffic Channel 业务信道TCP/IP Transport Control Protocol/Internet Protocol传输控制协议/网际协议TDD Time Division Duplex 时分双工TDM Time Division Multiple 时分复用TDMA Time Division Multiple Access 时分多址TDN Temporary Directory Number 临时电话号码TD-SCDMA Time Division Synchronous Code 时分同步码分多址Multiple-AccessTFC Transmit Format Combination 传输格式组合TFCI Transmit Format Combination Indicator 传输格式组合指示TG Tandem Gateway 中继网关TIA Telecommunication Industry Association 电信工业协会TID Tunnel Identifier 隧道标识TMSC Tandem MSC 移动业务汇接中心TOS Type of Service 服务类型TPC Transmit Power Control 发送功率控制TTI Transmission Time Interval 传输时间间隔TX Transmit 发送TX Transmitter 发射机UUHF Ultra High Frequency 特高频UDP User Datagram Protocol 用户数据报协议UE User Equipment 用户设备UIM User Identity Module 用户设别模块UIMCUIMUUMTS Universal Mobile Telecommunication System 全球移动通信系统UpPTS Downlink Pilot Time Slot 上行导频时隙USCH Uplink Shared Channel 上行共享信道UTRAN 无线接入网VVAS Value –Added Service 增值业务nrt-VBR Non-Real Time Variable Bit Rate 非实时可变比特率VCH Voice Channel 话音信道VHF Very High Frequency 甚高频VLR Visiting Location Register 访问位置寄存器VMGW Virtual Media Gateway 虚拟媒体网关VMSC Visited MSC 拜访MSCVoIP Voice over IP IP语音VPLMN Visited PLMN 拜访PLMNVPN Virtual Private Network 虚拟专用网VPU Virtual Process Unit 虚拟处理单元WWACS Wireless Access Communication System 无线接入通信系统WAN Wide Area Network 广域网WAP Wireless Application Protocol 无线应用协议WAPI WLAN Authentication and Privacy Infrastructure 无线局域网鉴别和保密基础WARC World Administrative Radio Committee 世界无线电管理委员会WCDMA Wideband CDMA 宽带码分多址WLAN Wireless Local Area Network 无线局域网WLL Wireless Local Loop 无线本地环路WMAN Wireless Metropolitan Area Network 无线城域网WPAN Wireless Personal Area Network 无线个域网WRAN Wireless Regional Area Network 无线区域网WVPN Wireless Virtual Private Network 无线虚拟专用网WWAN Wireless Wide Area Network 无线广域网WWW World Wild Web 万维网Wi-Fi Wireless Fidelity 无线保真WIMA Worldwide Interoperability for Microwave Access全球微波互操作ZZF Zero Forcing 迫零。

IPTV常用术语中英文对照表

IPTV常用术语中英文对照表AAAC(Advanced Audio Coding)：高级音频编码。

AAC是i-mode 所指定的音档格式，相对于MP3格式，AAC在原音质量和压缩效率上有绝对的优势。

AAC作为MPEG 4与3GPP的核心规格，也是MPEG规格的一部分。

AAC可以真实呈现立体声的高质量原音、更逼近CD音质，且能够达到很高的压缩率，可帮助减少许多储存空间，档案也远比MP3格式来得小。

AAC_LC(Low Complexity AAC)：低复杂度AAC 音频编码。

ABR(Average Bit Rate)：平均比特率，一种编码方式，是CBR和VBR编码方式的结合，它支持BR(BitReservoir，比特储存)技术，在信息量少的情况下降低比特率，把多余的可用数据量放到Bit Reservoir中储存起来，在信息量大的情况下再从Bit Reservoir中提取出来，这样就在结合了CBR和VBR的优点。

AC3(Audio Coding3)：音频编码3，即杜比数码。

ADSL(Asymmetrical Digital Subscriber Looper)：非对称数字用户环线。

AGP(Accelerate Graphical Port）：加速图形接口。

AVC(Advanced Video Coding)：MEPG-4Part10，也称H.264(ITU)。

AVS――AVS(AdvancedAudio-VideoCoding／DecodingStandard)是数字音视频编解码技术标准的英文简称。

AVS标准包括系统、视频、音频、数字版权管理等四个主要技术标准和一致性测试等支撑标准。

其核心是把数字视频和音频数据压缩为原来的几十分之一甚至百分之一以下，试图解决数字音视频海量数据的编码压缩问题，故也称数字音视频编解码技术。

它是数字信息传输、存储、播放等环节的前提，故此AVS成为了数字音视频产业的共性基础标准。

回声消除在VoIP网络中的应用

回声消除在VoIP网络中的应用摘要本文介绍了V oIP（V oice over Internet Protocol，网络传输语音）中回声消除的原理和算法，阐述了回声消除对提高V oIP网络语音通话质量的意义。

并在DSP芯片上实现了一个基于频域的自适应滤波器的回声消除算法，对测试结果对照ITU-T G.168标准进行了分析。

关键词声学回声消除；V oIP；G.168标准1 前言V oIP（V oice over Internet Protocol）业务利用Internet网络传输语音数据，与传统的PSTN网络相比，具有成本低、网络带宽利用率高、可集成多媒体业务等优势。

由于V oIP在网络采用分组交换传输语音数据，因此，网络带宽和编解码性能制约了通话质量。

在网络会议中，网络延时大或编解码性能低等原因会造成语音数据的延迟，会议用户收听到自己的声音。

这个声音是由对端麦克风从附近的扬声器拾取的，这就是通常所说的声学回声。

声学回声会对语音传输造成干扰，降低通话质量。

因此，在V oIP通话过程中，为提高V oIP的通话质量，有必要加入回声消除的功能，在将声学回声从语音数据中消除。

2 回声消除的原理根据通话过程中的回声产生的源，可将回声分为电学回声和声学回声。

电学回声是由于交换电路的阻抗不匹配产生的。

声学回声是由设备的音频数据采集系统接收了理论上不应存在的本设备发声系统输出的音频信号，其主要特点是回声路径冲激响应变化范围大，变化快，冲激响应持续时间长，一般在50～300 ms。

这使得自适应建模滤波器的阶数很高，因而成为语音通信系统回声的主要难题[1]。

声学回声消除的基础是，音频输出系统输出的音频和它产生的多路径回声具有相关性。

自适应回声消除基本思想是，预估计回声路径的特性参数，模拟出回声信号，在音频采集系统采集的音频信号中减去估计的模拟回声。

图1表示了声学回声消除的原理图。

在图1中所示回声消除的原理，y（n）代表远端来的音频信号。

蒂尔斯真无线耳机噪音取消专业版说明书

PhilipsTrue Wireless HeadphonesNoise Canceling Pro Two mics for clear calls Wireless charging caseIPX5 water protection TAT5506BK Your life, your moves,your musicMusic or calls, these attractive true wireless headphones are ready. Noise Canceling Pro tunes out background noise-perfect for listening outdoors or on a commute. You get a secure comfy fit, and the metallic look adds a dash of style.Great sound, sleek looks•Sleek design with Noise Canceling Pro•Great sound from 10 mm neodymium drivers•Clear calls, using one earbud or both•Secure, comfortable in-ear fitMade for you•Handy wireless charging case. Get up to 32 hours play time•Qi-compatible case can be charged wirelessly or via USB-C•IR sensor. Music pauses when you take an earbud out•Philips Headphones app. Custom sound and moreReady for your day. Or night•Easy control and pairing•Quick reconnect to your phone when you open the case•IPX5 water and sweat resistantHighlightsNoise Canceling ProThese true wireless headphones don't just look great-they also let you focus. Advanced noise cancellation filters out unwanted sounds, and Awareness Mode lets you hear the world around you. Engage Voice Enhanced Mode on the Philips Headphones app to chat tosomeone nearby without removing an earbud.Great soundOn your way. On the train. In the park or gym. Wherever you listen-perfectly tuned 10 mm drivers give you great sound for every track, playlist, and more. If you take an earbud out, the music pauses. Put the earbud back in, and the music starts up again.Clear callsWith two mics focused on the sound of your voice, you'll be heard clearly-and you can double your talk time by using one earbud while the other one charges. The mics are automatically assigned to the earbud you're using, and you simply swap over when your current earbud is running low on battery.Secure, comfortable in-ear fit You get real comfort thanks to soft,interchangeable silicone ear-tip covers. The ear-tips on each earbud insert securely into your ear canal, creating a perfect seal that diminishes external noise. The 'hockey stick' form factor keeps each earbud secure.Handy charging caseNo matter what your day brings, theseheadphones can keep up. You get 8 hours play time (7 hours with ANC) from a pair of fully charged earbuds, and a fully charged case gives you another 24 hours (21 hours with ANC).The Qi-compatible case can be charged wirelessly or via USB-C.Philips Headphones appThe Philips Headphones app puts you in charge of the music you're listening to. Adjust levels yourself or choose from preset sound styles. You can also use the app to switch between preset noise-cancellation modes, or control the Voice Enhanced Mode.Easy control and pairingControls on the earbuds let you pause your playlist, take calls, and wake your phone's voice assistant. The headphones are ready to pair in an instant. Once paired, they reconnect with your phone as soon as you open the charging case.IPX5 water/sweat resistantThe IPX5 rating means these headphones are resistant to water jets. The earbuds won't mind a little sweat and you don't need to worry about getting caught in the rain.Issue date 2023-02-01 Version: 8.0.212 NC: 8670 001 75064 EAN: 48 95229 11925 3© 2023 Koninklijke Philips N.V.All Rights reserved.Specifications are subject to change without notice. Trademarks are the property of Koninklijke Philips N.V. or their respective owners.SpecificationsSound•Impedance:16Ohm•Speaker diameter: 10 mm•Sensitivity: 105 dB (1K Hz)•Frequency range: 20 - 20,000 Hz •Maximum power input: 5 mW•Driver type: DynamicANC features•ANC technology: Hybrid, ANC Pro •Awareness mode•Adaptive ANC•Microphone for ANC: 4 mic•ANC (Active Noise Canceling) Telecommunication•Microphone for call: 2 mic•ENC microphoneConnectivity•Bluetooth version: 5.2•Supported codec: AAC, SBC•Maximum range: Up to 10 m•Bluetooth profiles: A2DP, AVRCP, HFP •Type of wireless transmission: Bluetooth •WirelessConvenience•Philips Headphones app support •Firmware updates possible•Auto pause (IR sensor)•Water resistance: IPX5•Mono mode for TWS•Type of controls: Touch•Automatic power offDesign•Wearing style: In-ear•Color:Black•Ear coupling material: Silicone•Ear fitting: In-ear•In-ear fitting type: Silicone ear tipPower•Music play time (ANC on): 7 + 21 hr •Music play time (ANC off): 8 + 24 hr •Battery type(Earbud): Lithium Polymer (built-in)•Battery capacity(Earbud): 55mAh•Battery type(Charging case): Lithium Polymer (built-in)•Battery capacity(Case): 520mAh•Battery life standby time: 200 hr•Talk time:8hr •Charging time: 2 hr•Fast charging time: 15 mins for 1 hr •Wireless charging•Number of batteries: 3 pcs•Battery weight (Total): 12.7 g •RechargeableVoice assistant•Voice assistant support•Voice assistant activation: Manual•Voice assistant compatible: Apple Siri, Google AssistantAccessories•Charging case•Eartips: 3 pairs (S/M/L)•Quick Start Guide•Charging cable: USB-C cable, 500 mm Product dimensions•Product dimensions (W x H x D): 7 x 3 x 4.2 cm •Weight: 0.064 kgPackaging dimensions•Packaging type: Box•Number of products included: 1•Type of shelf placement: Hanging •Packaging dimensions (W x H x D):9.5 x 17.5 x 3.5 cm•Gross weight: 0.147 kg•Nett weight: 0.089 kg•Tare weight: 0.058 kg•EAN: 48 95229 11925 3Inner Carton•Number of consumer packagings: 3•Inner carton (L x W x H): 16.4 x 11.5 x 11 cm •Gross weight: 0.519 kg•Nett weight: 0.267 kg•Tare weight: 0.252 kg•GTIN: 2 48 95229 11925 7Outer Carton•Number of consumer packagings: 24•Outer carton(L x W x H): 34.8 x 24.8 x 24.7 cm •Gross weight: 4.628 kg•Nett weight: 2.136 kg•Tare weight: 2.492 kg•GTIN: 1 48 95229 11925 0UPC•UPC: 8 40063 20221 4。

MOTOTRBO 清晰通信——即使是嘈杂的环境下说明书

MOTOTRBO™Clear Communication—Even in Noisy EnvironmentsACCELERATE PERFORMANCE.MOTOTRBO™ Helps ManufacturersBe More Competitive.Y ou know the challenges. Y ou need to maximize productivity to stay competi-tive—which demands clear communication through long work shifts. Also critical to the industry is ensuring plant safety and security and the ability to rapidly respond to incidents.Powered by advanced Motorola technology, the MOTOTRBO Professional Digital Two-Way Radio System is ready to help you respond to those challenges with enhanced productivity.Make Everything ClearTo help your employees communicate when operat-ing in noisy environments, MOTOTRBO provides digital noise suppression and audio that stays clear throughout the coverage area.Moreover, MOTOTRBO supports new digital applica-tions, including text messaging, providing an alterna-tive way to get a message through when noise prevents voice communication or when employees can't safely answer a call. And if your facility oper-ates a ﬂ eet for local pick-up, delivery or warehous-ing, GPS-based Location Services can simplify and streamline your ﬂ eet management.Ready for Hard Work and Long ShiftsMOTOTRBO’s digital design allows you to communi-cate directly to subgroups you deﬁ ne—for example, individual work groups. Nobody will be distracted hearing messages intended for others.MOTOTRBO radios will go the distance, becausethey’re tested-tough to endure factory conditions.They meet demanding standards: U.S. MilitaryStandards 810 C, D, E, and F , and, for portable radios,IP57 for submersibility in water. MOTOTRBO radiosare also intrinsically safe and can be used in locations where ﬂ ammable gas, vapors or combustible dustmay be present.Running multiple shifts? Employees workinglong hours? No problem. MOTOTRBO portable radios work overtime, too, with battery life that’s up to 40 percent longer than that of traditional analog radios.Safety FirstWith their clearer audio quality throughout the coverage area, dependability, and emergency call-ing feature, MOTOTRBO radios help you provide the fastest, most accurate response to emergency situations. They’re also FM-compatible, for safe use around combustible gasses and liquids.A Great Fit for Y our Bottom LineCompared to analog solutions, MOTOTRBOoffers twice the calling capacity for the price of one license—thanks to Time-Division Multiple-Access (TDMA) technology. A second call doesn’trequire a second repeater, saving on equipment. MOTOTRBO utilizes Motorola's state-of-the-art IMPRES ™ technology in batteries, chargers and audio accessories, providing longer talk times and clearer audio delivery.A Complete, Flexible, Highly Capable System MOTOTRBO brings you a private, standards-based, highly cost-effective solution that can betailored to meet your unique coverage and featureneeds—with the ﬂ exibility that a complete systemoffers—portables, mobiles, repeaters, applications,accessories and services.MOTOTRBO Location ServicesMOTOTRBO Text Messaging ServicesVoice andData IntegrationIncreased CapacityEnhanced PerformanceMOTOTRBO AccessoriesMotorola offers these, and many other accessories to enhance convenience and productivity.PortableHard Leather Carry CasePMLN5030AFeatures 3" ﬁ xed belt clip; for radio without display.IMPRES ™ Remote Speaker MicrophonePMMN4025Reduces background noise in loud conditions. Break-A-Way Chest PackRLN4570AIncludes radio holder and acce sory pocket. Allows the pack to be pulled off with approximately 10 lbs. of pressure.MobileIMPRES Heavy Duty MicrophoneRMN5053AFor users who require a more durable microphone.Portable Radio Standard Package Includes:• Radio • A ntenna—Standard whip included with XPR ™ 6500 and XPR ™ 6300Standard whip with GPS included with XPR ™ 6550 and XPR ™ 6350• IMPRES ™ Li-ion 1500 mAh Submersible Battery • IMPRES ™ Single Unit Charger • 2.5" Belt Clip • User Guide CD • 2 Y ear Standard Warranty plus 1-Y ear RepairService Advantage (US only)/Extended Warranty (Canada only)Mobile Radio Standard Package Includes:• Radio • Trunnion• Cabling (power cord)• Compact Microphone • R eplaceable Button Kit • User Guide CD • 2-Y ear Standard Warranty plus 1-year RepairService Advantage (US only)/Extended Warranty (Canada only)Repeater Standard Package Includes:• Repeater• 120V AC Power Cord • Installation Manual• 2-Y ear Standard WarrantyMotorola—A Name Y ou Know and T rustFor more than 75 years, Motorola has been a leader in creating state-of-the-art wireless communications for people like you. The MOTOTRBO™ Professional Digital Two-Way Radio System upholds that superior standard. Each radio and repeater is backed by a two-year Standard Warranty plus one-year Repair Service Advantage and at least a one-year warranty for accessories. So when you select MOTOTRBO, you’ll experience the same exceptional quality you’ve come to expect from all Motorola products.Motorola, Inc.United States:1309 E. Algonquin Road Schaumburg, Illinois 60196Phone: 1-800-422-4210TTY: 1-800-522-5210Fax: 1-800-622-6210MOTOROLA and the Stylized M Logo are registered in the U.S. Patent and Trademark Ofﬁ ce. All other product or service names are the property of their registered owners. © Motorola, Inc. 2007 MD-EU/TRBO/MANUF。

PocketMemo Voice Recorder 3D Mic技术商品介绍说明书

Pocket MemoDictation and SpeechRecognition SetSlide-switch operation3D Mic systemSpeechExec Pro softwareIntegrated speech recognitionSuperior audio quality and design• 3D Mic system for best audio quality and accurate speech-recognition results• Built-in motion sensor for automatic microphone selection• Ergonomic slide switch for efficient single-handed operation• Robust stainless steel casing for extra durabilityEnhance your productivity• Integrated speech recognition for turning voice to text immediately• Large color display and clear user interface for easy, intuitive operation• Docking station for fast battery charging and hands-free recording• Light and motion sensors for extended battery lifeDesigned for professionals• File encryption and device PIN lock for high data security• Remote management support for time-saving deployment and maintenance• Classic mode for clear and easy-to-use operationNo 1 in SPS globalcustomer satisfactionsurvey 09/2017.3D Mic system for best audio qualityThe breakthrough 3D Mic technology uses the built-in microphones to always deliver best recording results: an omnidirectional microphone offering 360 degree sound pick-up, ideal for the recording of multiple sound sources such as meetings, and a unidirectional microphone optimized for voice recording and accurate speech-recognition results.Motion sensorThe built-in motion sensor senses when the device is placed on the desk or held in the hand and selects the microphone accordingly to suit the recording situation. The motion sensor switches automatically into standby mode when the device is idle. Once the PocketMemo is picked up again, it’s ready to record within seconds.Wear-free slide switchThe quick-response and ergonomic slide switch is designed for singlehanded operation of all recording and playback functions, allowing easy and quick file editing (insert, overwrite, append). It operates with a light sensor signal, making it wear-free and durable.Robust and ergonomic designThe asymmetrical and ergonomic shape fits perfectly into your hand. Its slim andlightweight design maximizes comfort, even when working over longer periods of time. The brushed stainless steel creates a robust and highly durable protective shell around the device. The device is shockproof according to US military standard 516.6.Integrated speech recognitionThe SpeechExec Pro software organizes the workflow of dictation files and resulting documents between author and transcriptionist, and allows you to monitor the status of your work. It comes with integrated Dragon speech recognition software that allows authors to turn speech into text immediately.Large, high-resolution color displayThe large full-color display offers sharp images, making it easier to see everything at first glance. The clear user interface is optimized for easy, intuitive operation.Docking StationThe stable and superior Docking Station provides speedy charging and automatic transfer of your recording to your computer. With an optional foot control connected, the docking station enables hands-free recording and transcription even without a computer.Extended battery runtimeThe high-capacity Li-ion battery can be easily charged through a standard micro USB jack. The integrated light and motion sensors guarantee extended battery life. The smart technology adjusts the brightness of the display and switches automatically into stand-by mode when the device is idle, ensuring that your recorder will always be ready to work when you are.High data securityRecordings can be encrypted in real time using the Advanced Encryption Standard (AES or Rijndael Algorithm) with a key length of 256 bits. AES provides a very high degree of security and has been approved in the USA for the most highly classified government information. The device itself can be assigned a PIN code to protect against unauthorized use or file playback.Remote configuration & maintenanceThe Philips SpeechExec Remote Device Manager software allows IT administrators to centrally manage, configure and update dictation hardware from Philips, saving valuable time and resources. Managing device settings for individuals, groups and teams or the whole organization is easily done remotely.Classic modeMany users still love their analog devices for their simplicity and userfriendliness. The optional classic mode gives the user the look and feel of working with an analog device while retaining the advantages of digital technology and keep focused on the essentials.SpecificationsConnectivityHeadphones: 3.5 mmMicrophone: 3.5 mmUSB: micro USB 2.0Docking connectorMemory card slotDisplayType: color TFTDiagonal screen size: 2.4 inches / 6.1 cm Resolution: 320 × 240 pixelsStorage mediaExchangeable memory cardMemory card types: SD/SDHC (DPM8000, DPM8200), micro SD/SDHC (DPM8500), up to 32 GBMass storage class compliantData transfer speed: 6.75 MB/s read speed, 5.0 MB/s write speedAudio recordingRecording format: DSS/DSS Pro (Digital Speech Standard), MP3, PCMBuilt-in microphones: 1 directional microphone, 1 microphone for 360 degree recordingRecording modes: DSS QP (.ds2/mono), DSS SP (.dss/mono), MP3 (.mp3/stereo), PCM Voice (.wav/mono), PCM Stereo (.wav/stereo) Bit rate: 13.7 kbit/s (DSS SP), 28 kbit/s (DSS QP), 192 kbit/s (MP3), 353 kbit/s (PCM Voice), 705 kbit/s (PCM Stereo)Edit modes: insert (DSS/DSS Pro), overwrite (DSS/DSS Pro, MP3, PCM), append (DSS/DSS Pro, MP3, PCM)Recording time (4 GB memory card): 700 hours (SP), 350 hours (QP), 50 hours (MP3), 27 hours (PCM Voice), 13 hours (PCM Stereo) Sample rate: 44.1 kHz (MP3), 22.05 kHz (PCM), 16 kHz (DSS QP), 12 kHz (DSS SP)SoundSpeaker type: built-in round, dynamicspeakerSpeaker diameter: 28 mmAcoustic frequency response: 300 – 7500 HzSpeaker output power: > 200 mWPowerBattery type: Philips Rechargeable Li-ionBattery ACC8100Battery capacity: 1000mAhBattery lifetime: up to 30 hours of recording(DSS Pro mode)Standby time: more than 200 daysCharging time (full charge): 3 hoursSecurityReal time file encryptionEncryption standard: Advanced EncryptionStandard (AES or Rijndael Algorithm) with256 bitsDevice lock with pin codeUser identification via PIN codeNumber of supported user IDs: 40DurabilityMIL-STD-810G 516.6 certified for shockresistanceSystem requirements for PhilipsSpeechExec softwareProcessor: Intel dual core or equivalent AMDprocessor, 1 GHz or faster processorRAM: 2 GB (32 bit)/4 GB (64 bit)Hard-disk space: 100 MB for SpeechExecsoftware, 4.5 GB for Microsoft .NETFrameworkOperating system: Windows 10 Pro/Enterprise(64 bit), Windows 8.1/7 Pro/Enterprise (32/64bit), Windows Server 2012 (64 bit), WindowsServer 2008 R2 (32/64 bit)Graphics: DirectX-compliant graphics cardwith hardware acceleration recommendedSound: Windows-compatible sound deviceBrowser: Internet Explorer 9 or higher, or thecurrent version of Chrome or FirefoxFree USB portInternet connection for required softwareactivationAdditional system requirements for speechrecognition softwareSupported speech recognition software:Nuance Dragon Professional 13/14/15Individual/Group, Nuance Dragon Legal13/14/15, Dragon Medical Practice Edition 3,Nuance Dragon SDK Client Edition 14Processor: Intel dual core or equivalent AMDprocessor, 2.2 GHz or faster processorRAM: 4 GB (32 bit)/8 GB (64 bit)Hard-disk space: 8 GBOperating system: Windows 10 Pro/Enterprise(64 bit), Windows 8.1/7 Pro/Enterprise (32/64bit), Windows Server 2012 (64 bit), WindowsServer 2008 R2 (32/64 bit)Issue date 2018-09-03Version 1.0/dictation© 2018 Speech Processing Solutions GmbH. All rights reserved.Specifications are subject to change without notice. Trademarks are the property of Koninklijke Philips N.V. or their respective owners.VersionsPSE8000Slide-switch operation (record, stop, play,fast rewind)SpeechExec Pro Dictation and Speech Recognition SoftwarePSE8200Slide-switch operation (fast forward, record/play, stop, fast rewind)SpeechExec Pro Dictation and Speech Recognition Software Integrated speech recognitionSupported languages: English (including variants for US, UK, Australian, Southeast Asian, Indian and Canadian), German, French, Italian, Spanish and Dutch.Supported audio file formats: .wav, .wma, .mp3, .dss, .ds2, .m4a.Green specificationsCompliant to 2011/65/EU (RoHS)Lead-free soldered productOperation conditionsTemperature: 5° – 45° C/41° – 113° F Humidity: 10 % – 90 %, noncondensing DimensionsProduct dimensions (W × D × H): 53 × 123 × 15 mm / 2.1 × 4.8 × 0.6 inches Weight: 117 g/4.1 oz including battery and memory card Package contentsPocketMemo Voice Recorder Docking Station Memory cardRechargeable battery USB cable PouchSpeechExec Pro Dictation and Speech Recognition Software User manualAvailable accessoriesPhilips Rechargeable Li-ion Battery ACC8100Philips SDHC Memory Card ACC9008Philips Telephone Pickup Microphone LFH9162Philips Meeting Microphone LFH9172Philips Foot Pedal LFH2210Philips WLAN Adapter ACC8160Philips SpeechExec Remote Device Management Software LFH7470Philips SDK for Dictation Hardware LFH7475Specifications。

工厂内网络工业EPON系统技术要求

工厂内网络工业 EPON 系统技术要求Factory internal network, Technical Requirements of Industrial EPON目录前言................................................................................. I V 工厂内网络工业EPON 系统技术要求. (5)1范围 (5)2规范性引用文件 (5)3术语和定义 (7)4缩略语 (7)5工业场景EPON 建设背景 (8)6工业场景下EPON 的使用场景 (11)6.1 使用场景 (11)7工业场景下EPON 技术要求 (15)7.1 概述 (15)7.2工业场景下EPON 设备接口要求 (15)7.3设备类型 (17)7.4光链路保护倒换要求 (18)7.5ONU 设备工业环境适应性要求 (19)7.6工业环境中光纤技术要求 (19)7.7其它技术要求 (20)附录A：EPON 在工业领域应用案例介绍 (20)A.1某企业车间网络建设升级 (20)A.2某企业新建车间网络建设 (21)附录B：工业场景下的EPON 技术要求 (22)B.1参考模型 (22)B.2业务类型 (22)B.3EPON 协议要求 (23)B.4以太网功能要求 (24)B.4.1以太网基本功能 (24)B.4.2VLAN 功能 (26)B.5动态带宽分配功能（DBA）要求 (26)B.6多业务QoS 机制要求 (26)B.6.1多业务QoS 总体要求 (26)B.6.2业务等级协定（SLA） (27)B.6.3业务流分类功能 (27)B.6.4优先级标记 (27)B.6.5流限速 (28)B.6.6优先级调度 (28)B.6.7缓存管理 (29)B.7安全性要求 (29)B.7.1PON 接口数据安全 (29)B.7.2过滤和抑制 (29)B.7.3ONU 认证功能 (29)B.7.4用户认证及用户接入线路（端口）标识 (30)B.7.5安全功能 (30)B.7.6管理平面安全要求 (30)B.8系统保护要求 (31)B.8.1光链路保护倒换功能 (31)B.8.2设备主控板1+1 冗余保护 (31)B.8.3OLT 上联口双归属保护 (32)B.8.4配置恢复功能 (32)B.8.5电源冗余保护功能 (32)B.9告警要求 (32)B.10性能统计要求 (32)B.10.1OLT 和ONU 的性能统计要求 (32)B.10.2以太网数据的性能统计要求 (33)B.11业务承载性能指标要求 (33)B.11.1以太网/IP 业务性能指标要求 (33)B.11.2可靠性要求 (33)B.12操作管理维护要求 (33)B.12.1总体要求 (33)B.12.2ONU 的远程管理功能 (34)B.12.3ONU 本地管理系统要求 (34)B.13设备硬件要求 (35)B.13.1ONU 指示灯要求 (35)B.13.2ONU 开关与按钮 (35)B.13.3Dying Gasp 及掉电保持时间 (35)B.14工业环境适应性要求 (36)B.14.1概述 (36)B.14.2气候环境 (36)B.14.3化学活性物质 (37)B.14.4电磁兼容 (37)B.14.5机械适应性 (42)B.14.6外部电源 (42)B.14.7外壳防护 (43)B.14.8爆炸性环境要求 (43)工厂内网络工业EPON 系统技术要求1范围本规范提出了工厂内网络中工业EPON系统的建设背景、应用场景和实施案例，同时提出了工业EPON系统的设备接口要求、设备类型、光链路保护倒换要求、ONU 设备工业环境适应性要求、工业环境中光纤技术要求以及参考模型、协议要求、以太网要求、QoS要求、安全性要求、性能要求、设备硬件要求等具体技术规范。

AU-Stream 轻型无线耳机说明书

L
M
S
CONTROLS
On the Left or Right Earbud
Play/Pause Music
QUICK START GUIDE
PAIRING
1. Open the battery cover and the headset will automatically turn on. Press and hold the base button 2 seconds to enter the Bluetooth pairing status.
Automatic remote connection
When the ear buds and your mobile phone are disconnected, due to distance, just return the correct distance and the ear buds will automatically connect to your mobile phone and return to the normal connection state. If it is disconnected for more than 30 minutes, tap the Bluetooth name in your phone to connect again. If it is disconnected for more than 2 hours, it will automatically shut down.
AUDIO SIGNATURE
FEATURES
High Performance AU Titanium Driver A 13MM AU Titanium composite film speaker with a frequency range of 20Hz - 20KHz, and tuned to perfection for everyday use. This driver was engineered to give the ultimate sound in a

LG C9 OLED TV产品说明书

© 2019 LG Electronics USA, Inc. All rights reserved. “LG Life’s Good” is a registered trademark of LG Corp. All other product and brand names are trademarks or registered trademarks of their respective owners. Design, features and specifications are subject to change without notice. Non-metric weights and measurements are approximate. Some features may require Internet access. Content and services may vary by product and are subject to change without notice. 02/26/19OLED C9PUA SeriesC9 Series - 4K HDR Smart OLED TV w/ AI ThinQ®Once you've watched your favorites on LG OLED TV, every other flat screen just looks flat. Movies, shows, sports, gaming — OLED displays it all in a new light, bringing out richness in all colors and uncovering what was once hidden in crisp, clear detail. Perfect black and infinite contrast reveal shadow detail in the darkest scene, while picture and sound benefit from LG's most powerful AI-powered 4K processor and Dolby technologies. The intelligence of LG ThinQ® and the voice control of the Google Assistant* and Alexa** built-in.LG ThinQ® AI LG OLED TV 4KThe world’s most intelligent TVs listen, think and answer to provide the ultimate in personalized entertainment and control over your smart home.The TV that’s leading the way. 8.3 million individually lit pixels deliver perfect black and infinite contrast. It’s picture quality like you’venever seen.Images, action and color are brought to new life to instantly enhance picture quality through LG's best 4K processor including 4-step noise Advanced image and sound technologies inspired by the cinema optimize picture and sound for a spectacular, more lifelike experience in every scene — it's ultravivid picture and powerful, moving audio that seems to flow all around you.**Dolby Vision is a trademark of Dolby Laboratories. Dolby, Dolby Atmos and the double-D symbol are registered trademarks of Dolby Laboratories.Dolby Vision™ & Dolby Atmos®SPECIFICATIONSPICTURE (PANEL)INPUTS & OUTPUTS。

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MGC
MG
Typical SIP Calls
SIP Operation in Redirect Mode
Site 1 Endpoint 1@Site 1 Redirect Server Site 2 Location Server Site 3 Client 2@Site 3
Media Encoding ITU
TCP
UDP
Sub-band ADPCM 48, 56, Algorithm Discrete cosine transform (DCT) with motion compensation H.263 Improved version of H.261 Various Medium Bit Rate (Kbit/s) p x 64 (p = # of ISDN B channels) Picture Quality Low
MGCP Commands
MGC MG CreateConnection: Creates a connection between two endpoints; uses SDP to define the receive capabilities of the participating endpoints. ModifyConnection: Modifies the properties of a connection; has nearly the same parameters as the CreateConnection command. DeleteConnection: Terminates a connection and collects statistics on the execution of the connection. Notification Request: Requests the media gateway to send notifications on the occurrence of specified events in an endpoint. Notify: Informs the media gateway controller when observed events occur. AuditEndpoint: Determines the status of an endpoint. AuditConnection: Retrieves the parameters related to a connection. RestartInProgress: Signals that an endpoint or group of endpoints is taken in or out of service.
MGC MGC MGC MGC
MG MG MG MG
Sequence number Increments by one for each RTP data packet sent, and may be used by the receiver to detect packet loss and to restore packet sequence. Timestamp Reflects the sampling instant of the first octet in the RTP data packet. The sampling instant must be derived from a clock that increments monotonically and linearly in time to allow synchronization and jitter calculations. The resolution of the clock must be sufficient for the desired synchronization accuracy and for measuring packet arrival jitter (one tick per video frame is typically insufficient). Identifies the synchronization source. This identifier is chosen randomly, with the intent that no two synchronization sources within the same RTP session will have the same SSRC identifier. Contributing source identifiers list. Identifies the contributing sources for the payload contained in this packet.
RTP Header
0 M 1 V 2 3 4 P X Payload type Sequence number Timestamp SSRC CSRC RTP structure 5 6 7 CSRC count Octet 1 2 3 4 5 6
Protocol Stack
Signalling H.323 H.450.X H.235 MGCP Audio Codecs Video Codecs Gateway Control Media
V P X
Version. Identifies the RTP version. Padding. When set, the packet contains one or more additional padding octets at the end, which are not part of the payload. Extension bit. When set, the fixed header is followed by exactly one header extension, with a defined format. Contains the number of CSRC identifiers that follow the fixed header. Marker. The interpretation of the marker is defined by a profile. It is intended to allow significant events such as frame boundaries to be marked in the packet stream. Identifies the format of the RTP payload and determines its interpretation by the application. A profile specifies a default static mapping of payload type codes to payload formats. Additional payload type codes may be defined dynamically through non-RTP means. MGC MG
Voice
Standard Algorithm Bit Rate (Kbit/s) Typical endto-end delay (ms) (excluding channel delay) G.711 G.723.1 G.728 G.729 G.729 annex A G.722 G.726 G.727 PCM MPE/ACELP LD-CELP CS-ACELP CS-ACELP ADPCM EADPCM 48, 56, 64 5.3, 6.3 16 8 8 16, 24, 32, 40 16, 24, 32, 40 <<1 67-97 <<2 25-35 25-35 <2 60 60 Excellent Good (6.3), Fair (5.3) Good Good Good Good Good (40), Fair (24) Good (40), Fair (24) Resultant Voice Quality
AW_VoIP_poster2.FH 22/8/99 17:16 Page 1
C M Y CM MY CY CMY K
Voice Over IP Technology Protocol Reference
Standards
Signalling ITU-T Standards and Recommendations H.323 V2 Packet-based multimedia communications systems H.225.0 Call signalling protocols and media stream packetization for packet-based multimedia (includes Q.931 and RAS) H.225.0 Annex G Gatekeeper to gatekeeper (inter-domain) communications H.245 Control protocol for multimedia communications H.235 Security and encryption for H-series multimedia terminals H.450.x Supplementary services for multimedia: 1. Generic functional protocol for the support of supplementary services in H.323 2. Call transfer 3. Diversion 4. Hold 5. Park & pickup 6. Call waiting 7. Message waiting indication H.323 Annex D Real-time fax using T.38 H.323 Annex E Call connection over UDP H.323 Annex F Single-use device T.38 Procedures for real-time group 3 facsimile communications over IP networks T.120 series Data protocols for multimedia conferencing IETF RFCs and Drafts RFC 2543 SIP: Session initiation protocol RFC 2327 SDP: Session description protocol Internet Draft SAP: Session announcement protocol Media Transport IETF RFC 1889 RFC 1889 RFC 2324 RTP: Real-time transport protocol RTCP: Real-time transport control protocol RTSP: Real-time streaming protocol