Sound is stuttering/choppy in emulators

[Drizzt]

Hi, I'm having a major problem with stuttering sound in all emulators.
I've tried speaker and headset through 3.5mm jack, pc speaker, usb headset and HDMI to TV and the menu music sounds ok, but ingame it's choppy as hell and HDMI sound only works in the menu, not ingame (muted).
I'm running Recalbox on a pc with a flashed usb drive for OS and hdd for rom storage.
Any help would be greatly appreciated.