What is the latest word on Audio Drift in digitizing video? at DVinfo.net

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.


Reply
 
Thread Tools Search this Thread
Old September 4th, 2005, 04:53 AM   #1
Major Player
 
Join Date: Jan 2004
Location: Vancouver, Canada
Posts: 429
What is the latest word on Audio Drift in digitizing video?

Hi there,

There used to be the known problem of audio drifting out of sync on long video files. I've been using Sony's DVgate for the last little while, which will split the video into 10 minute segments, so I don't get any drift. But the other day, I digitized 3 miniDV tapes and saved them all as one file per tape.... at about 20 minutes in, the audio started to drift and by the end of each tape the audio was out of sync almost a full second of time.

Is this common? How do people without DVgate digitize their audio and keep the sound in sync? If I digitize in Premiere, as one large file, will the sound be out of sync as well?

I would have thought this would have been corrected by now. That explains why DVgate splits up the video into chunks.
Ronald Lee is offline   Reply With Quote
Old September 4th, 2005, 08:51 AM   #2
 
Join Date: Jul 2002
Posts: 1,244
I'm not clear on what your asking.

I know that if you try to record sound and picture separately you'll get a sync problem (unless you have a device syncing the camera and recorder), but I've never encountered what you're talking about. We've always recorded the audio directly to the tape.

We use Sony Vegas and have never, in 5 years, had any sync problems, even with projects that had 60 minutes of uninterupted recording.

Jay
Jay Gladwell is offline   Reply With Quote
Old September 4th, 2005, 10:27 AM   #3
New Boot
 
Join Date: Sep 2005
Location: Shelton, CT
Posts: 10
Quote:
Originally Posted by Jay Gladwell
We use Sony Vegas and have never, in 5 years, had any sync problems, even with projects that had 60 minutes of uninterupted recording.

Jay
Sorry to go off topic here - but I'm curious what you think of Sony Vegas as far as NLE... Have you ever used anything else that you could compare it to?

We are about (I think) to purchase Sony Vegas+DVD...

BTW - we would experience sound drift with Speed Razor in the past - but it always got corrected by re-booting the PC or re-loading the clip. So we chalked it up to a Speed Razor bug...
Stephen Zlamany is offline   Reply With Quote
Old September 4th, 2005, 01:44 PM   #4
Major Player
 
Join Date: Jan 2004
Location: Vancouver, Canada
Posts: 429
Stephan, there are tons of posts about Vegas in this forum, try doing a search.

Jay, well, when I capture a long 60 minute file with DVgate, I get audio drift. If I capture the same 60 min in 10 min parts I don't.

In the past, when I've captured long clips I've had audio drift, on different computers and systems. I am wondering how common does everyone find this to occur. And how to get around it. I won't be using DVgate much longer, I'll be capturing in Premiere and this concerns me.
Ronald Lee is offline   Reply With Quote
Old September 4th, 2005, 07:54 PM   #5
Regular Crew
 
Join Date: Dec 2004
Location: Tigard, OR
Posts: 42
Good capture programs do not create audio drift. I had that problem with Videowave, but never with Premiere. I have captured entire tapes as one chunk with no drift. Have you tried turning on scene detection? That's a better way to capture anyway. Also, check for dropped frames. Every dropped frame will throw your capture more out of sync. That my be your culprit. You can set Premiere to stop capturing if a frame is dropped.

-Mike
Mike Shkolnik is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 11:43 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network