As the title says, I spent a while thinking of how making this work.
CPS1Q and CPS2 use a 16 byte array to send sound codes and Q-SOUND through the first 16 bytes of the shared RAM area.
example:
code 0x0ff0 => 0f ff 00 00 00 ff 00 xx 00 00 00 00 00 ff ff ff
xx let 68k side know if anything...