Android KTV

 KTV声音实时回放

http://www.cnblogs.com/mythou/tag/android/

Android上用speex做回音消除

http://blog.csdn.net/fireworkburn/article/details/12781985

Android 平台语音通话及回音消除、噪音消除研究

http://blog.csdn.net/AudioAEC/article/details/12685921

Android 实时获取麦克风输入音量的代码

http://blog.csdn.net/bhp1127/article/details/8212708