Hi, I have the same problem as above. It records video and audio soundtrack perfectly, and playback after recording is fine.
However, during the recording, I am unable to hear the soundtrack. I can only see the video while it is being captured and not hear the audio (like in mute mode). When I am preparing to record, I am also not able to hear playback of the source (camcorder or VHS player) before starting to record. This is very frustrating.