AC3 output contains only silence ?

john-beale wrote on 9/8/2003, 6:29 PM

I am running Vegas 4.0d on Windows 2k SP4. I have found that Vegas will generate an AC3 output file which is completely silent, if I render my sound to AC3 immediately after opening a video project, without first listening to the sound. If I play it back from the timeline first before rendering, then the AC3 track is rendered correctly. Seems like some kind of initialization bug? Has anyone else observed this?

Comments

kentwolf wrote on 9/8/2003, 7:33 PM

I have also had a number of instances where Vegas will render completely silent sound if I move the clips around a lot.

What I do:

1.) Render, say, the first 5 minutes of a clip (NTSC-DV, *.avi). All works great.
2.) Delete the part I just rendered.
3.) Move the 00:05:00:01 to the beginning of the timeline.
4.) Now, if I render the next 5 minutes, OFTEN, there will be no sound althought it plays from the timeline just fine.

I find I have to close, then reopen Vegas, and all will render fine.

I have had this happen on a number of occasions.

SonyEPM wrote on 9/9/2003, 8:04 AM

I just tried doing both operations described above, AC-3 renders perfectly. Any other suggestions you can offer to help us repro here would be appreciated-