paraflight

I have a HP pavillion desktop using windows 7 Communications IDT high definition audio CODEC Speakers Logitech LS11 Both are plugged in. My headphones work When I test the speakers on the sound they work However when I record on Debut (webcam) there is no sound on the speakers, but during the playback the two tests on the speakers come through? My volume mixer is on 40% Can somebody help.