Hello,
I'd be happy to help you with your audio issues. I have built my own PC's for the past 7 years and have had some audio issues myself through out the time I've been doing this. In regards to this I have written down two questions I would like to know the answer to before we start. I'm happy to discuss this with you before we start
Is it system sounds that is looping for you or any sound in general when they are played through your PC? Is it a Windows PC or a Mac?