[Android] intermittent sound fading

RetroArch Android devices
#1

Hello.

I’m having some issues with RetroArch on my HTC One X (NVIDIA Tegra 3, 4 cores, 1500 MHz, Android 4.1.1).

  1. When I start emulator, I can change media volume with volume button, but after loading rom volume button only changes ringing volume.
  2. During gameplay sound is fading for short time, and it feels like sound is crackling. I thougt it was the problem, tried to play with refresh rate according to a manual here on forums, but nothing helped. I even tried to disable VSync and interpolation and loaded fast core (NEStopia), but it didn’t help too. Only when I used headphones, I realized it wasn’t crackling, it was like phone was reducing media volume to play some more important sounds, just without playing them.

I believe, both issues are related somehow.

#2

I finally figured out it was Dynamic rate control. After disabling it all sound issues gone.