Sample rate and conversion chioce

[dwrae]

There is no way to know if the Android device really supports different sample rates or just one fixed rate (which is the case in 99.9% of the Android devices). Variable rate sends the audio to the Android audio system without UAPP doing sample rate conversion. This usually leads to worse quality, since SRC in Android is not so good and leads to a much lower volume than the one in UAPP.