When I listen to spotify or youtube music and play a game, a weird crackling/buzzing sound occurs. When I leave the game app, or turn off the music it stops. How do I fix this? Is it something ih can fix in settings? Or its it something physical?
Let's try a hardware test on your speaker. Open your dial pad and tap in *#0*#. This should bring up various options in a grid format. Select 'Speaker' and this should make a sound. Do you hear the same crackling/buzzing noise?