That's probably because there's bug in PatchAXDsp in patch.c. You can try replacing line 239 of patch.c withOnly it has garbled sound.
Code:
W32((u32)ptr + (Dup3 + 0x5D) * 2, 0x029F0000 | (Dup3 + CallLength + 0xB)); // jmp Dup3+0xF
This fixed the garbled audio in Kirby Air Ride, Mario Golf and Resident Evil 4 for me.