Hi everyone,
Someone at github reported an issue with sounds on neogeo : it seems some games have missing sounds when you select a mvs usa bios or the usa+arcade setting with the unibios. The games reported are bstars (no music when the game start), nam1975 (no sound at all ingame), karnovr (no sound in selection screen + ingame), and some clones, i don't know if it affects other games. I can confirm it happens with official fbalpha.
Is that a bug ? I've been wondering if those sounds aren't just missing from the usa version of those games.