This sometimes occurs when I open, exit and re-open an app. The issue I have is that I forgot to run cleanup on the SoundManager:
public static void cleanup() {
mSoundPool.release();
mSoundPool = null;
mSoundPoolMap.clear();
mAudioManager.unloadSoundEffects();
_instance = null;
}
You must have something still running in memory that you have now run twice.