http://kometbomb.net/x/error.png

This just pops up when I run the game. That's divide by zero most likely, maybe you divide by the sample rate or so because it definitely happens when I don't have my 'phones plugged in.

On my computer, for some reason if I don't plug in any audio devices, any audio code basically refuses to initialize. Not sure about the libraries you use, but I was able to bypass this in my own code by simply checking if audio was init properly and if not, just skip everything related to audio. Maybe you could simulate it by just not initializing the audio device.