I have some existing MPEG video files from a client
that I need to edit, and I'm wondering if your tools
will do what I need. What I need to do is to remove
existing narration from the video clips, add new
narration, and save the file back out without
recompressing the video portion at all. The video is
encoded with MPEG-1, 496x288, 24fps. The audio is 16
bit stereo, 44.100 kHz, MPEG-1 Layer 2, 192 kbits/s.
The new audio could be sent into your software in
whatever format it would need, but I'd want the
recompressed audio to be similar to what's listed above.
Yes, this can be done using the steps below.
1. Put the MPEG file on the video track of the Timeline.
2. Put the substitute audio on one of the audio tracks.
3. Mute the video clip from the clip menu.
4. Press Export button (red) on the Timeline's toolbox.
5. Select "Custom" as the export template and then
6. Switch to Audio page on the Export window.
7. Change the audio encoder to MPEG-1 Layer 2 at 44.1kHz
and 192 kbps.
8. Switch to Monitor page.
9. Press Start to complete the conversion.
If your substitute audio needs realignment with the
video, you will need to do some manual adjustment, using
a higher resolution time scale.
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