I've noticed that recently the audio quality on my Galaxy note 3 becomes very choppy when my screen is off, but instantly fixes itself when the screen turns back on. Once the screen turns off the quality goes back down after a few seconds. This did not happen before.
I normally listen on Bluetooth headphones, but this problem still occurs with regular headphones and even just the phone spearer.
What could be causing this and how can I fix it? My suspicious is that some sort of process is running when my screen is off that is causing lag, but this feels doubtful because my phone doesn't get hot, nor my battery go down more than usual.