I know there is other thread speaking about that but they are quite old. Is there other solution than use usb soundcard?

my device is a pi boy with raspberry pi 3b+ inside with retropie and emulation station.

The weird thing is that sound in emulators is ok but not in native applications (lgpt, the sound seems to be shitty on doom too).

@herr_prof helped me with an other raspberry pi but the problem was different  (at the end, sound was ok on the other pi) and also I don't want to broke the fonctionnality of pi boy so I prefer ask before try to reinstall alsa-sound... I'm a little afraid broking the screen displaying because I have no information about the screen and I saw on internet other peoples had problems using it if they try to reinstall