thasmin/Podax — Issue #15: Add "MediaPlayer Adjustable SampleRate/Playback Speed support"
Author: brot
Created: 2011-12-30 12:58:31+00:00
State: open

I know this feature isn't available in the Android MediaPlayer framework. There is still an open Issue on Android issue-list:
https://code.google.com/p/android/issues/detail?id=1961

But in the comments of this issue are a few options to implement this feature in existing applications. For example:
http://www.aocate.com/presto/
https://market.android.com/details?id=com.aocate.presto