I have a strange issue with my OPL2 Board. When I use the serial passtrough example and the OPL bank editor I have to turn on max volume of the board to hear anything. There is much noise and distortion when I do that, but at least I hear something. It also doesn't seem to change instruments. Al sounds sound the same when I play notes. I also tried tried flashing the atmega16u2 with the HDUINO MIDI firmware and played notes through MIDI-OX with the same result. However, when I use the Arduino IDE examples that play drums and melody, it sounds just fine! Then I can control the volume and it can even quite loud. Using an UNO clone with CH340 USB chip also gave teh same result with the OPL bank editor. I used my laptop to try it. It's and Asus with Wndows 10.
I have a strange issue with my OPL2 Board. When I use the serial passtrough example and the OPL bank editor I have to turn on max volume of the board to hear anything. There is much noise and distortion when I do that, but at least I hear something. It also doesn't seem to change instruments. Al sounds sound the same when I play notes. I also tried tried flashing the atmega16u2 with the HDUINO MIDI firmware and played notes through MIDI-OX with the same result. However, when I use the Arduino IDE examples that play drums and melody, it sounds just fine! Then I can control the volume and it can even quite loud. Using an UNO clone with CH340 USB chip also gave teh same result with the OPL bank editor. I used my laptop to try it. It's and Asus with Wndows 10.
Kind regards!