Can you extract the audio from just the transition?
Yes, but the glitch can still be heard - even with the volume reduced to zero for the transition clip and the extracted audio (using the pop-up slider at the bottom of the screen). The only way to silence the glitch is to mute track 1 (the main video track) by unchecking the box at the far right of the track. The glitch appears at the start of the transition, which indicates that it is extraneous audio from the incoming clip.
Have you tried zooming the timeline in at the points where there are no transitions but where your still getting glitches?
Yes, I have also tried this. There are no obvious stray clips or stray audio clips in the timeline. As I mentioned in my previous post, the glitch also appears when fading in the audio in track 1. I just did this on a clip, then dragged the clip to the right to create a black space to separate it from the previous clip. The glitch appeared at the very beginning of the fade, which commenced with a zero volume. The glitch has a scratchy sound, like a tiny piece of audio. Viewing the audio waveforms does not show up any visible problem with the audio.
Thanks for posting back Sue, and for the extra ideas. I'm beginning to wonder whether this audio malady is imposing its presence on PAL users only - OR is it afflicting both PAL and NTSC users? Any comments from other users would be most welcome!
John