Alright , so today i wanted to record some data with my webcam . I discovered that while video was normally depicted audio wasnt and it was substituded by a dull noise . All that while i could audio record with tthe webcam with the windows soundrecording program . I fiddled with the webcam microphone through the hardware and sound located in the control panel and i corrected the problem somewhat by activating the "hearing of this instrument button" through the hearing sector of the microphone ,but what this does is very odd since i can record audio with video but i have terrible feedback echo and on top the speakers do a buzzing sound . Maybe the fault is with my speakers being half dead i dont know .
So if I got you correctly, you're recording audio through your webcam as well which is giving you problems? If you have a separate microphone you will want to turn off the audio recording device on your webcam otherwise you might get that feedback I believe.