问题
Is there a way to slowdown/speedup the speed of music playback, currently I'm using MediaPlayer class and cannot find any functions that do this.
Is there a way to playback music with variable speed?
回答1:
Unfortunately MediaPlayer does not allow it. You can vote for this feature to be included in Android by default here: http://code.google.com/p/android/issues/detail?id=1961
The best apps that support it that I found are ACast (which has very good support for downloading podcasts, which is mainly where I use it to speed up audio files) and Astra Nova Player (which could be your replacement for MediaPlayer entirely).
I hope this helps.
来源：https://stackoverflow.com/questions/5149050/changing-the-speed-of-music-playback-in-android