Question details:

Over the past few months my pc has started to play random sound clips. They range from, what sound like news reports to jingles etc, it never plays a full clip, just a few seconds then goes quiet. I`ve scanned everything with AVG and use SpyDoctor, and SpyBot, but nothing seems to make it stop. I regulary clean my registry, and all other temporary files.I never thought that it would get so annoying but its really starting to grate now.

Answer:

If you say that everything on your computer is clean and you don't have viruses and spyware we think there is a problem caused by interference between your speakers and some radio channels.

If you use for example little headphones in your ear and you don't hear anything for sure it is caused by interference on your big speakers.