Batch Capture - Visualizing audio?

Shredder wrote on 8/12/2002, 10:53 AM
Hi,

I batch capture from sources that sometimes has the audio a couple frames out of sync, or the audio pre-rolls a few frames before the video begins, and a few frames after. (audio fade in-(a few frames)-video fade in---video fade out-(a few frames)-audio fade out).

The problem is I can only mark in/out points based on the visual frame view.

What I need is an audio waveform for the frame I'm looking at, as well as some cached frames a few frames in front/ahead of the current frame (anywhere I've scrubbed to), so I can "see" the audio & use that as my mark in/out point as well. It'd also be nice to have a 'start level & 'end level' display for the current frame to show the value numerically.

This cached view would also be nice for the current video frame as well, so that you don't have to do so much back/forth frame advances which are slow due to the tape mechanism having to reverse. Basically as you scrub past the event boundary, you can stop a frame or 2 after & just mark which frame right in that screen.

The problem is that I don't want to have to do double work. I want to batch capture right to the frame limits of the event. Now I have to pad a bit & then re-trim it after capture.

Do you know of anything that can do this?

Also, do you think this might make a good feature request to SoFo?

Here's a mock up of what I was thinking:

http://www.creativeshrapnel.com/temp/vvcap.jpg

(You can see how the audio starts a few frames before the video)

- Jon