I think i discovered why sound doesnt work in pifba binary and works in fba retroarch.

pifba is an older version of fba that still uses roms with a “*m1_decrypted.bin” file inside the game zips.

While fba retroarch is a newer version of fba that doesnt need the m1_decrypted.bin

For that reason new version of roms (which i have) doesnt work in the old pifba.

Its a shame really, since the pifba emulation is faster.