Hacked around with this Anaglyph tool in Audacity for some music I was working on: http://anaglyph.dalembert.upmc.fr/ http://anaglyph.dalembert.upmc.fr/ Results

Hacked around with this Anaglyph tool in Audacity for some music I was working on: http://anaglyph.dalembert.upmc.fr/ http://anaglyph.dalembert.upmc.fr/ Results were good, and it felt dependent on the resonance of the sound, where more pure tones seemed difficult to isolate the direction of (just like in real life). There are a number of plugins like it, and I think even GarageBand has a spatial filter for it. Was thinking through what a more modern audio game might be like given these features, it's such a rich area.