Major Time Slippage (SYNC) issues

jkb242 wrote on 12/10/2003, 8:33 AM
This has not happened to me previously with numerous captures and importing to Vegas 4 but the last two captures, about 1 hour 30 minutes in length, the video gradually begans to slip ahead of the audio first by several milliseconds then to several seconds much farther into the clip. This effect is being noticed on the preview screen in Vegas. Nothing has been rendered or burned to a CD. This is an observation when playing the clip on the time line in preview mode before making edits.

I am uisng the capture program within Vegas which I have used previously numerous times with same codec as used in the past but this is the first time I have ever observed anything like this. It has happened twice on the same clip but the clip is fine (VHS tape)

Can anyone provide some insight? I am at a loss and do not want to reinstall the program but that is almost what it appears needs to be done.

Help please.

Jerry

Comments

TheHappyFriar wrote on 12/10/2003, 9:22 AM
I've noticed that you get out of sync with VHS very easily when they are not recorded on SP more. If it's recorded on EP you should try stretching out the video to fit the audio. That's the way I've fixed it on my computer.

jkb242 wrote on 12/10/2003, 10:59 AM
Wow, this could prove to be very laborours. I have not had this problem before with VHS in high quality mode. I think maybe it is something I have overlooked. Any other suggestions?? Much thanks for the assistance but I need to find a way out of this as the stretching exercise seems to be a trial and error process.

TheHappyFriar wrote on 12/10/2003, 11:30 AM
Actuatly, I tried using the CTRL+Drag to stretch the video. It seemed to sync. So, I rendered a part to a new DV AVI, and it looked perfect! Make you you force resampling though. I did this for a 30 minute VHS video and you couldn't tell I stretched it. For an hour or so, it might be noticable. But, hey, you never know.
:)
jkb242 wrote on 12/10/2003, 5:34 PM
Sure it can't be worse than this...

Much thanks for the advice!!

JackW wrote on 12/10/2003, 10:06 PM
You might try dubbing the VHS to a DV tape, then capturing that to Vegas via Firewire. We've found this very effective with old VHS and 8mm tapes, especially if they are deteriorating. Sometimes just playing them from a VHS deck through the DV deck and out to the computer via Firewire is enough, but the transfer to DV tape has always worked.
johnmeyer wrote on 12/10/2003, 10:51 PM
I've captured hundreds of hours of VHS and 8mm analog video. I tried capturing through my ATI Radeon 8500 DV, but never had good luck. Bad video, sync issues, etc. Finally decided to just use the pass through on my DV camera and capture using the DV codec built into Vegas and Windows XP. No problems so far.

If you are capturing with an analog capture card, try the DV pass through instead.