How to get amplitude of media player in Android ?

问题

I want to develop an vu-meter and it reacts with sound, like a live-wallpaper Can anybody help me...

回答1:

Use MediaRecorder.getMaxAmplitude

This method returns the maximum absolute amplitude that was sampled since the last call to this method. Call this only after the setAudioSource().

http://developer.android.com/reference/android/media/MediaRecorder.html

回答2:

I've post an answer in this other post that should help you. It gives you the amplitude of the output mix, but can even be specified for a special MediaPlayer session id =)

来源：https://stackoverflow.com/questions/7452497/how-to-get-amplitude-of-media-player-in-android