No sound Nestopia / Mupen64plus

[Former user]

If I play the games directly through the emulator above, sound is working. But when playing through LB, it doesn't (when hover any games, the music will play tho).

Launchbox 7.10 Windows 10 No sound at all through Launchbox for Nintendo games (Nestopia) and Nintendo 64 (Mupen64plus).

I've read online others had same problem. What should I do?

Thanks