External OPL audio
The OPL2Board sound card allows for a real Yamaha OPL2 (YM3812) chip to be connected to the emulated machine for authentic FM synthesis output.
Usage
Connect the OPL2 Audio Board from Cheerful Electronic to a supported Arduino board.
Connect the Arduino board to the host system.
Select the OPL2Board (External Device) sound card on the emulated machine’s configuration.
Use the Configure button to select the Arduino’s serial port.
Note
The OPL3 Duo! board is currently not supported.
Regular PCM/wave audio still requires an emulated sound card to be configured. If the emulated sound card provides its own OPL, it can often be muted through a mixer utility within the machine.