I just redownloaded the game to test. Turning off the ambient track doesn't do anything, the static seems to be coming from all audio sources including sound effects. The menu music has static as well.
You move at approximately 1/3 of the speed after alt-tabbing.
Additionally the icon seems to be broken or non existent? 
I'm wondering why you can't see those problems, are you developing on linux? I hope this helps!
Yeah I mostly develop on Gentoo, though I reboot into Windows 7 when working on Windows-specific things. Audio was a little tricky to put together on both platforms so I'm not overly surprised there are issues.
Could you make a video+audio recording of the game running with the static and post it (or a link to it) here?. I can't recreate the problem so I'd like to hear what you're hearing. Also does your setup have more than two speakers/channels?
I think I know what the alt-tabbing problems are so I should be able to fix those. I can't remember if I was manually setting the icon or not, I was saving that for later. I don't even remember if I've made an icon to use yet.
Thanks a lot, this actually does give me a couple of possibilities and I may even be able to recreate it manually. My guesses are either the audio thread is sleeping too often or I'm not judging latency properly for all sound cards. I thought it might be just the vorbis streaming not working correctly from the longer loops but I hear distortion on the plasmagun's shots as well so it would have to be a problem with the overall audio. Either way this gives me a good idea of what might be wrong as its similar to problems I've already had.
I'd have replied much sooner but itch appears to have swallowed up the notification from this reply so I didn't see it until now!
