01-11-2021, 03:14 PM
On Android 10 and x86_64 architecture, sometimes UAPP with a USB DAC can stop playing on its own. This happens often on a virtual machine and rarely on a system installed directly on device. After reconnecting the DAC and allowing UAPP to access the DAC, when Play is pressed, sometimes UAPP "cannot initialize USB". It starts playing after restart, but does not set volume to the correct level, instead the DAC is set to maximum - the correct volume is restored only by pressing a volume button. I believe you don't set volume on a DAC, which was already connected to the device before launching the application.