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PWM_VOICE
- 用LPC213X系列的PWM来产生语音。语音数据来源于PC机转换后得到的。最大可以是16位的。 由于是PWM所以输出端口需要低通滤波才能够得到比较干净的声音。 可以经过修改使用LPC2132以上的ARM的D/A来产生。 This project outputs audio on PWM0 using wave samples that are stored in the on-chip Flash ROM. -LPC213X series used to generate th
NETSong
- 这是一个简单的JAVA聊天程序，同时能够发送声音。 包括两个部分：服务器端和客户端。 基本功能如下： 服务器端： 向所有客户端发送消息；转发消息；发送声音数据给客户端。 客户端： 显示当前在线用户；向某个用户发送消息；接受服务器端发送过来的声音。 这个程序可能看起来有点乱，因为很久没用JAVA了，但是最近别人要我帮忙写一个，所以就。。。 希望能够起到抛砖引玉的效果。 Feel free and enjoy it!-This is a simple
GSM_Blocks
- Simulator for a GSM traffic channel transmission and reception This Simulink model simulates the entire transmission and reception of voice data of a traffic channel for GSM (TCH/FS)over a multipath fading channel, and it calculates the BER of the
iad132e
- IAD （Integrated Access Device ）132E(T) 综合接入设备（下文简称IAD132E(T) ）是华为技术有限公司下一代网络NGN（Next Generation Network ）解决方案中的重要部件，用以向公司等用户提供小容量VoIP （Voice over IP）/FoIP（Fax over IP ）解决方案。IAD132E(T) 作为VoIP/FoIP 媒体接入网关，应用于NGN 用户接入层，完成模拟话音信号与IP 包之间的转换，并通过包交换网络传送数据的功能
QAMTransmissionThroughaCompanding
- Abstract-The effect of the companding process on QAM signals has been under investigation for the past several years. The compander, included in the PCM telephone network to improve voice performance, has an unusual affect on digital QAM data
vioce-signal-processing
- 录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 -Record your own voice for
yate2.tar
- yate是一个软交换的sip电话。也是一个voip服务器或客户端。 主要支持功能： VoIP 服务器 VoIP 客户端 VoIP to PSTN 网关 PC2Phone and Phone2PC 网关 H.323 网守 H.323 多端点服务器 H.323<->SIP 转换代理 SIP session border controller SIP 路由 S IP 注册服务 Jingle 即时聊天 I SDN passive
NetworkingVoIP
- Network Convergence and Voice over IP These telephone networks have progressively evolved from the initial analog circuits to the current digital networks with bandwidth in excess of 1 Gbps. For reasons of varying bandwidth and networking requi
Handbook_for_Successful_VoIP_Deployment
- Deploying Voice over IP (VoIP) successfully in a data network has some unexpected pitfalls. In previous papers, we’ve explored how to do a Voice Readiness Assessment [1] and looked at focused planning and design tips [2,3]. This paper describes chang
andreadrian.deintercom
- Voice over IP Intercom Linux 环境下，带有回声消除模块，VC++开发。-The application can: dial an intercom partner via short-dial buttons transport your voice over IPv4 with RTP UDP unicast data packets make a telephone conference support wideband (16kH
130
- so included. Applications The VoIP baseband device is intended to be used in a wireless phone which operates by encapsulating voice data within IP frames and transmitting the frames over a conten- tion-based wireless medium. Specifically, the f
example
- 验证通是业内首家提供语音验证码的网站，提供详细的客户接口示例。 账号更安全如：游戏玩家绑定了手机或固话，只可用绑定过的号码向验证通获取随机密码，才可以登录游戏或转账等一系列的操作等 用户信息更真实:只有通过验证的用户才可以注册，这样保证了用户的联系信息资料的100 的准确性 语音导航个性化:可以根据你的公司、网站、网店、游戏等等个性化语音提示的定制 -Verify through the industry' s first Web site to provide voice
Data-Transmission-over-Speech-Coded-Voice-Channels
- The voice channel in mobile communication systems have high priority and are almost always available. By using the voice channel also for data transmissions it is possible to get the same availability as for voice calls. But due to speech codecs
InternetProtocolTelevision
- Basic aim of IPTV is to offer a complete package known as the triple play: voice, data, & video- that is, telephony, the internet & television. The single most amazing thing IPTV does is this: when the channel- surfer at home starts clicking away, th
GSM
- Global System for Mobile (GSM) is a second generation cellular standard developed to cater voice services and data delivery using digital modulation Developed by Group Spéciale Mobile (founded 1982) which was an initiative of CEPT ( Conference of E
802.11B_wireless_network_card_in_the_implementatio
- 本文是阐述在嵌入式数字信号处理器（DSP）OMAP5912上实现无线网络802．11B的方法。DSP对PC机数据或者直接采样语音信号，通过无线网络传输，实现数据通信。由于系统以DSP为核心，使得无线网络的数字信号处理更加方便，可以较方便地实现数据加密、信号压缩等较复杂的算法。 -This is explained in the embedded digital signal processor (DSP) OMAP5912 802.11B wireless network to realiz
testscript_intel
- voice) is the target signal and the second one (woman s voice) is the interfering speaker. To contrast the effects of an interference speaker (non-stationary noise) with a white noise inference (stationary noise/constant power) a white nois
The-data-compression-book-2nd
- The primary purpose of this book is to explain various data-compression techniques using the C programming language. Data compression seeks to reduce the number of bits used to store or transmit information. It encompasses a wide variety of softwar
admin.pdf.tar
- Administering data centers servers storage and voice over ip
cofdm
- Orthogonal frequency division multiplexing (OFDM) is a communications technique that divides a communications channel into a number of equally spaced frequency bands. A subcarrier carrying a portion of the user information is transmitted in each band