Boost volume in Android
Related links: https://android.googlesource.com/platform/development/+/master/samples/ApiDemos/src/com/example/android/apis/media/AudioFxDemo.java https://developer.android.com/reference/android/media/audiofx/LoudnessEnhancer https://stackoverflow.com/questions/9404776/preferred-way-to-attach-audioeffect-to-global-mix