speex编码

flex4 中获取Microphone，抑制回声和使用Speex编码音频的方法

flex4 中获取Microphone，抑制回声和使用Speex编码音频的方法，该方法经过本人测试可用。一、如果你不关心请直接把代码复制，如果想要了解细节的请继续往下看 private function getMicrophone(codec:String):Microphone { var mic:...

最佳的开源网络视频会议音频编码库：Speex

Speex编码库提供回声消除功能，可以通过近端和远端的数据包进行叠加，从而消除静音，但由于网络视频会议的语音接收和发送线程都是分开，因此需要对两个线程进行同步才能进行回声消除。4、自动增益控制网络视频会议系统的声音采集通常可以...

Speex手册-Speex编/解码API的使用(libspeex)

Speex编码器还有很多参数可以设置，其中最有用的一个是质量参数，控制着比特率（bit-rate）交换的质量，通过下面函数设置：speex_encoder_ctl(enc_state,SPEEX_SET_QUALITY,&quality);quality是一个0～10（包含10）范围内的整数，窄带...

Speex 音频编解码

Speex 音频编解码 2010-08-26 17:14/demo.cpp:Defines the entry point for the console application./include"stdafx.h"#include<speex/speex.h>#include<stdio.h>#include<ostream>#include<speex/speex_preprocess.h>#include<speex/...

speex编解码在android上实现

以前在应用中使用到了Speex编解码，近来总结了一下Speex在android上的实现。Speex是一套主要针对语音的开源免费，无专利保护的音频压缩格式。Speex工程着力于通过提供一个可以替代高性能语音编解码来降低语音应用输入门槛。另外，相对于...

speex编解码在android上实现

音频编解码-speex库的使用方法

它不仅提供了基于码激励线性预测（CELP）算法的编/解码模块，而且在其最新发布的版本中还提供了声音预处理和声学回声消除模块，为保障IP网络中的语音通信质量提供了技术手段。此外，Speex还具有压缩后的比特率低（2~44 kbps）的特点，并...

音频数据编解码——在.NET中使用Speex（附下载）

Speex是一套开源的音频编解码库，最新版本还包含了回音消除和防抖动等功能，如果我们想开发语音聊天或视频会议这样的系统，Speex将是一个不错的选择。到 http://www.speex.org可以下载Speex的源码（编译后的dll为libspeex.dll），最新版本...

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