stop playing music when screen goes off

[ivanovic]

Hi,
To whom may concern,
my phone: Samsung s22 ultra latest OS. One UI 5.1 and Android 13.
my usb dac: ibasso dc04pro and I use direct usb output mode against src
my problem is just same as the title. I have already tried to enable the all system optimizations for this app including battery power supply& background blahblahblah, however still have issue. I have no clue if someone could help me get it resolved.
Appreciate in advance!

[blaubär]

Try to disable rather than enable system optimizations, in most cases they're responsible for such behaviour of apps.
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If that doesn't help : have a look at "Settings > Connection and Controls" and "Settings > User Interface > Lock Screen", try if activating "Settings > Service" or "Settings > ... Lock" helps.