Bad recording quality

I just tried using the voice recorder on my new 8gb Clip and it has the same sound quality problems as my 2gb except this time I get a high-pitched hissing noise which lasts 30secs exactly (except in one case where the hissing cut out at 28secs). Strange that my old one stopped hissing at 15secs in and my new one 30secs in…

Also, should add that I get a constant ‘ticking’ sound in the background in my voice recordings. If this could be fixed in an update then I would be most grateful!