解码器

Speex

参考文档
官网

See INSTALL file for instruction on how to install Speex.

The Speex is a patent-free, Open Source/Free Software voice codec.

Unlike other codecs like MP3 and Ogg Vorbis, Speex is designed to compress voice at bitrates in the 2-45 kbps range. Possible applications include VoIP, internet audio streaming, archiving of speech data (e.g. voice mail), and audio books. In some sense, it is meant to be complementary to the Ogg Vorbis codec.

To use the Speex command line tools:

% speexenc [options] input_file.wav compressed_file.spx

% speexdec [options] compressed_file.spx output_file.wav

翻译理解： 是一个开源的音频编码解码器，不像mp3和ogg的音频解码器，Speex主要用来压缩音频的，主要用于VoIp, 网络录音，归档语音留言，语音电子读物；在某种意义上，它是对ogg编码解码器的补充；

命令：

speexenc [options] input_file.wav compressed_file.spx  # 压缩命令
speexdec [options] compressed_file.spx output_file.wav # 解压命令

aacdecoder-android

参考opencore-android

官网

是ACC音频文件的解码器，
原文如下

This is a port of the OpenCORE aacdec open source library to Android platform. OpenCORE aacdec is licensed under the Apache License, Version 2.0 and its source can be downloaded here. For more information about OpenCORE aacdec, please visit http://code.google.com/p/opencore-aacdec/

aacdecoder-android是OpenCore aacdec开源的android版本；

This library allows to play AAC, AAC+ and HE-AAC+ streams on Android devices.

在android上可以用来播放aac, aac+ 和 HE-AAC+这些流