Sound problems after new SD and ArkOS

Hello friends.

I replaced the factory SD with a Samsung Select 128GB as suggested. I flashed the new SD with the latest ArkOs on the sidebar (Panel 4 version).

Everything went fine, but the problem now is that I have sound problems while playing Pokemon on the GBA emulator. There is a rustling sound while the in-game music is playing. You know the rustle sound when you change the channel on the radio? Similar to this.

How do I fix that ?