I WASNT EVEN FINISHED IT
as i was saying before this stupid forum interrupted me:
how do i stop sounds playing when i stop the animation in cs6?
Event sounds will do that. You can stop all sounds with SoundMixer.stopAll(); or you could use Stream audio. Stream audio will have the byproduct of keeping your animation real time.
Stick a keyframe at the tiem you want to stop the sound on the layer that holds the sound. At that keyframe look in your properties inspector and specify Sync: Stop.