Synchronize audio/video with Vegas Pro 8 - AVS Forum
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post #1 of 12 Old 08-10-2010, 06:03 PM - Thread Starter
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I have a few discs from my DVD405 that I simply want to convert to either MPEG-2 or WMV. I tried both and when I watched them the audio was after the video by a full second.

I imported to the timeline, no editing, just highlighted and rendered to WMV and they were out of sync. Is there a simple way to fix this?
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post #2 of 12 Old 08-10-2010, 06:22 PM
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What is the clip's frame rate and project and render settings?
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post #3 of 12 Old 08-10-2010, 06:31 PM - Thread Starter
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Here's a copy from the properties.



General
Name: VTS_01_2.VOB
Folder: I:\\VIDEO_TS
Type: MainConcept MPEG-2
Size: 246.05 MB (251,953,152 bytes)
Created: Sunday, May 30, 2010, 11:51:35 AM
Modified: Sunday, May 30, 2010, 11:51:35 AM
Accessed: Sunday, May 30, 2010, 11:51:35 AM
Attributes: Read-only

Streams
Video: 00:05:18.818, 29.970 fps interlaced, 720x480x32, MPEG-2
Audio: 00:05:19.520, 48,000 Hz, Stereo, MPEG

ACID information
ACID chunk: no
Stretch chunk: no
Stretch list: no
Stretch info2: no
Beat markers: no
Detected beats: no

Other metadata
Regions/markers: no
Command markers: no

Media manager
Media tags: no

Plug-In
Name: mcplug.dll
Folder: C:\\Program Files\\Sony\\Vegas Pro 8.0\\FileIO Plug-Ins\\mcplug
Format: MainConcept MPEG-2
Version: Version 2.0 (Build 4349)
Company: Sony Creative Software Inc.


When I click "Render"...this is in the "Description" box:

Audio: 64 Kbps, 44,100 Hz, 16 Bit, Stereo.
Video: 29.970 fps, 720x480, Quality VBR 90, WMV V9 Compression.

I tried good and best quality as well.

Project Properties:

NTSC DV (720x480, 29.970 fps)

Hope this helps.
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post #4 of 12 Old 08-10-2010, 07:06 PM - Thread Starter
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I wanted to add.....it's fine in Vegas, but only out of sync after rendering.
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post #5 of 12 Old 08-10-2010, 08:12 PM
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Your audio input is 48Khz and you're rendering at 44.1Khz. Try rendering at the original input (48Khz) and see what happens.
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post #6 of 12 Old 08-11-2010, 04:13 AM - Thread Starter
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O.K., that would make alot of sense

Another thing which may be my PC setup as of now....when I have 5 min of video, like the one i'm working on, when I first import it, I can play with audio...but when I want to advance the cursor to about halfway through the clip...I can play it from there but with no audio.

Could this be a memory issue?

I have 2.4 Ghz dual-core w/ 4GB ram, slow until I get my new rig built but is working right now for short clips.
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post #7 of 12 Old 08-11-2010, 04:41 PM - Thread Starter
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I changed the audio to 48Khz and no change.
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post #8 of 12 Old 08-11-2010, 05:02 PM
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When rendering, double check on Video tab that the target frame rate is indeed 29.97 fps. Do not rely on description, this is just text. Try another output codec besides WMV.
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post #9 of 12 Old 08-11-2010, 06:04 PM - Thread Starter
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Here's the screenshot, I trust i'm looking at the correct window.

At the end of the video clip, there is an additional length of audio, but they start at the same time, in the 2nd screenshot, that's about how much they are off.
LL
LL
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post #10 of 12 Old 08-11-2010, 06:53 PM
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Does the whole thing go out of sync gradually and progressively.... or is it in sync up to a point and then suddenly go out of whack?
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post #11 of 12 Old 08-11-2010, 07:04 PM - Thread Starter
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I cannot tell until about 1:30 into it...but from there until the end the delay is the same.
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post #12 of 12 Old 08-12-2010, 02:57 AM
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That's pretty strange.

Don't know what caused it..... or even if it's the video's fault or Vegas's fault. If it all of a sudden starts out of the blue at a given point though I would suspect there to be issue with the video.

At any rate, I would look for a flat point in the audio at, or shortly after the 1:30 mark and cut out what you need to even things back up again.
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