Help How to keep music player going all night

[landmark]

I like to sleep to the sound of rain, and instead of using a white noise app, I prefer to use an hour-long audio file of rain sounds on repeat. The problem is my phone at some point during the night goes quiet, and I can't figure out why. In my half-awake state, I restart the sounds, but later on, again they've stopped.

This problem happens when I put the track on repeat and also when I make a playlist of several instances of the track. It happens with different music players. When I'm awake, I test the transitions between tracks or the repeat, everything seems to work fine.

The stopping doesn't happen when I use a white noise app.

How do I keep the sounds from stopping when using an mp3 player?

I'm using Android 9 on a Sony Experia.

 

[ocnbrze]

what app are you using?

 

[landmark]

It happens on PowerAmp, Retro Music Player, and Pulsar

 

[landmark]

I found a Bluetooth "power saving feature" setting in my settings under Battery. I added the music apps as "power-saving exceptions," meaning they'll now not be restricted in the background. I wonder if that will help. FWIW, I have my phone plugged in at night anyway.

 

[Dannydet]

Make sure you have do not disturb shut off during the evening

 

[landmark]

I seemed to have figured it out. I had to enable the developer tools (which were hidden/turned off on my phone) and then check "Stay awake - screen will never sleep while charging." I turn off the screen manually so at least the light is off and keep the phone charging, of course. It seems to be working.

 

[puppykickr]

You should exclude your music app from Battery Optimization.

Also you can try 'Pinning' the app, which should keep it running as a foreground app.
The methods for this vary, but on mine it has been generally...

Settings
Security
Screen pinning