I knew that I had a problem when I started a conversation with a friend of mine over Skype, because she told me that she could not hear me because of this terrible noise, at that moment we used MSN Messenger to verify if there was something wrong with Skype, but it wasn't, same annoying noise. Then I tried to capture a video to hear myself and I must tell you, the noise is awful, I can't even hear myself. So I tried to solve the problem looking for answers, trying to tweak the software and change every setting possible, and nothing had happen. I must tell that I get the noise ONLY when the video is running, when I'm using voice only the sound is great. I think that my camera is defective.
And following Bob's advise I'm giving my system configuration
Compaq Presario Laptop R3460US
AMD Athlon 64 3200+
512MB DDR SDRAM
60GB 4200 rpm
SoundMAX Digital Audio Sound Card
Windows XP Home Edition w/Service Pack 2
NVIDIA GeForce 4 440 Go
24X DVD/CD-RW Combo Drive
and of course my brand new Creative Live! Cam Voice
Thanks in advance for any help that I could get.