Savvy001, your .capx is insane! You're trying to play a new sound every tick, 60 times a second, and that's exactly what overloads and breaks the browser's audio engine. It only works in Chrome because it supports the Web Audio API which is a robust audio engine. You should try other browsers though, because it doesn't work at all in any browser other than Chrome.
All I can suggest is play one looping sound on start of layout and adjust that dynamically. This is not a C2 bug, you're giving the browser way too much audio to handle.