NOTE:
This msg is cross-posted in the Vegas - Video Topics forum also (I don't know if this is a video or audio issue, it involves both, so I wasn't sure where to post). Please respond there, not here, so that all knowledge is shared in the one place. Thanks....
Original msg in Vegas - Video Topics forum:
I have been working on a 5 minute trade show demo loop, shot on DVCAM, to be burned to DVD. The footage transferred just fine to disk, and everything plays nicely. Nothing is out of synch to start with.
However, when this project plays, there's a moment when the audio gets out of synch by several frames. It *always* occurs about 4 minutes in. Has anyone run into something like this?
The audio is entirely an on-camera talent. After the video edit was complete, I rendered the voice track as a .wav file, loaded it into Sound Forge, and improved the presence of the talent's voice. The resulting file was then saved to disk, brought back into the project, and placed on a track of its own. The original track has been muted.
It plays/previews perfectly. It's dead on.
However, when rendered, as an MPEG2, uncompressed AVI, or Quicktime MOV, there's always a point where one segment seems to "go off" about 4 minutes in - it starts a frame or two off, and within a few phrases it feels about 4-6 frames off. Then the shot changes and we're into the final card, and that's it.
The project is NTSC DVD 29.97 FPS and I've changed nothing about its frame rate, nor have I employed any audio or video timing changes or effects of any kind. The talent is in mono. The music underneath is stereo.
Is this enough info go go on? I'm stumped. I've even used MyDVD and burned a test DVD, but the problem remains, so I can only assume it's coming from VV this way.
Help. And thanks. (And remember to reply in the video topics thread of the same name.)
yojimbo
This msg is cross-posted in the Vegas - Video Topics forum also (I don't know if this is a video or audio issue, it involves both, so I wasn't sure where to post). Please respond there, not here, so that all knowledge is shared in the one place. Thanks....
Original msg in Vegas - Video Topics forum:
I have been working on a 5 minute trade show demo loop, shot on DVCAM, to be burned to DVD. The footage transferred just fine to disk, and everything plays nicely. Nothing is out of synch to start with.
However, when this project plays, there's a moment when the audio gets out of synch by several frames. It *always* occurs about 4 minutes in. Has anyone run into something like this?
The audio is entirely an on-camera talent. After the video edit was complete, I rendered the voice track as a .wav file, loaded it into Sound Forge, and improved the presence of the talent's voice. The resulting file was then saved to disk, brought back into the project, and placed on a track of its own. The original track has been muted.
It plays/previews perfectly. It's dead on.
However, when rendered, as an MPEG2, uncompressed AVI, or Quicktime MOV, there's always a point where one segment seems to "go off" about 4 minutes in - it starts a frame or two off, and within a few phrases it feels about 4-6 frames off. Then the shot changes and we're into the final card, and that's it.
The project is NTSC DVD 29.97 FPS and I've changed nothing about its frame rate, nor have I employed any audio or video timing changes or effects of any kind. The talent is in mono. The music underneath is stereo.
Is this enough info go go on? I'm stumped. I've even used MyDVD and burned a test DVD, but the problem remains, so I can only assume it's coming from VV this way.
Help. And thanks. (And remember to reply in the video topics thread of the same name.)
yojimbo