Hi all,
Here is my problem. I'm using a MPEG-2 file (created using CapWiz 3.5 with DVD Xpress from ADS Technologies). I use VideoEditor 7.0 to edit and crop the section I really need. Then, with VideoEdit 7.0, I select FILE - CREATE - VIDEO FILE.
When I look at the new MPEG file created, the image and sound are out of sync of almost 1 second. I removed all the application and reinstall it again, but the problem remains.
My settings to create the new MPEG are the following:
MPEG files
24 Bits, 720 x 480, 29.97 fps
Lower Field First
(DVD-NTSC), 4:3
Video data rate: Variable (Max. 6000 kbps)
Audio data rate: 224 kbps
MPEG audio layer 2, 48 KHz, Stereo
Did someone has ever see this problem and/or found a solution?
Thank you all for your help.
TazMan_1965
Image and sound out of sync
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tazman_1965
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heinz-oz
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tazman_1965
This is a common, nasty, frustrating problem, and it seems to have several different causes & solutions. So search the board for "sync" or OOS (out-of-sync).
In my case it was caused corrupted MPEG files. The files were corrupted when edited with Video Studio 8 (I don't have Media Studio). The same program material, but unedited, could be burned to DVD with no problems.
MPEGs aren't meant to be edited. So, if your hardware will allow it, try capturing to AVI, and holding-off the MPEG encoding 'till the after editing is done. This will also result in better-quality video, since it won't have to go through lossy MPEG compression twice. You can hard-cut & hard-splice MPEGs without re-coding, but cropping will degrade the video. Cross-fades and other transitions will be degraded during the transition
My capture card is MPEG only, so I bought a special-purpose MPEG editor - Womble MPEG Video Wizard ($120). I haven't had any problems since!
I still use Video Studio for some tasks, and I still use DVD Workshop.
In my case, the corrupted (edited) MPEG files played OK with Windows Media Player. The corruption only became apparent when I burned a DVD or created the DVD folders on my hard drive. The audio & video became out-of-sync when the audio & video (in the corrupted file) were de-multiplexed & re-multiplexed, as the audio was converted from MPEG-2 to AC3 or LPCM.
In my case it was caused corrupted MPEG files. The files were corrupted when edited with Video Studio 8 (I don't have Media Studio). The same program material, but unedited, could be burned to DVD with no problems.
MPEGs aren't meant to be edited. So, if your hardware will allow it, try capturing to AVI, and holding-off the MPEG encoding 'till the after editing is done. This will also result in better-quality video, since it won't have to go through lossy MPEG compression twice. You can hard-cut & hard-splice MPEGs without re-coding, but cropping will degrade the video. Cross-fades and other transitions will be degraded during the transition
My capture card is MPEG only, so I bought a special-purpose MPEG editor - Womble MPEG Video Wizard ($120). I haven't had any problems since!
I still use Video Studio for some tasks, and I still use DVD Workshop.
In my case, the corrupted (edited) MPEG files played OK with Windows Media Player. The corruption only became apparent when I burned a DVD or created the DVD folders on my hard drive. The audio & video became out-of-sync when the audio & video (in the corrupted file) were de-multiplexed & re-multiplexed, as the audio was converted from MPEG-2 to AC3 or LPCM.
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Terry Stetler
- Posts: 973
- Joined: Thu Mar 17, 2005 3:34 pm
- Location: Westland, Michigan USA
The easiest way to keep MPEG audio in synch is not to use it. The problem is that the temporal compression used in MPEG audio makes frame-accuracy on export iffy at best.
This is also a problem with other temporally compressed audio formats like WMA or MP3.
Simple fix for existing captures: split the MPEG audio off (using the Split timeline option), export it separately as a *.wav file and replace the timeline audio with it.
Long term fix: if you have the option capture your audio as PCM or LPCM (uncompressed *.wav).
This is also a problem with other temporally compressed audio formats like WMA or MP3.
Simple fix for existing captures: split the MPEG audio off (using the Split timeline option), export it separately as a *.wav file and replace the timeline audio with it.
Long term fix: if you have the option capture your audio as PCM or LPCM (uncompressed *.wav).
Terry Stetler
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Masami
What I've found is that if soemthing stops working, it's typically because either
1) A new program or download damaged or changed a source file.
2) A new program or download is active and preventing the program from doing what it used to do.
The typical fixes are easy.
1) Reinstall the program.
2) uninstall or deactivate the offending program.
An easy way to check which one it is, is to run the system in Diagnostic mode and then see if it works properly in that mode. If it does, you have problem #2, if it doesn't you have problem #1.
1) A new program or download damaged or changed a source file.
2) A new program or download is active and preventing the program from doing what it used to do.
The typical fixes are easy.
1) Reinstall the program.
2) uninstall or deactivate the offending program.
An easy way to check which one it is, is to run the system in Diagnostic mode and then see if it works properly in that mode. If it does, you have problem #2, if it doesn't you have problem #1.