I'm using camtasia to edit my films. Some of the sound is from my computer mike. But for interviewees I record the sound on a zoom recorder and then put it in the film. In a recent film, it all sounds great on my headset but on my computer's mike you can't hear any of the zoom recorder sound! This is both in camtasia and when I export it. If I switch the sound setting for each clip to mono, the sound level goes so quiet you can hardly even hear it. What can I do? I need to show the films publicly tomorrow!