Re: How to record video without sound
When i record youtube guitar videos, i record the sound through my presonus firestudio and record the video and sound on the camera at the same time. When i chuck these two things into sony vegas i use the camera audio to sync up the properly recorded sound with the video and then mute the camera audio.
However you're saying that your sound is behind when you record using the webcam and the mic at the same time. This sounds like a latency issue to me, you should see if you can lower the buffer on your recording interface (without any artifacts of course).