TAG | audio out of sync
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Convert Divx 3 to Divx 5/Xvid with Video&Audio Synchronizing
0 Comments | Posted by Bob in Tips & Tricks
There are different versions for the video codec Divx: Div3, 4 and 5. Div 3 is not much used nowadays but there are still some DVD released in this codec. Unfortunately, many DVD players do not support all the Divx versions and the LiteOn LVD-2001 DVD Player is one of such DVD players. LiteOn LVD-2001 has the feature of high quality DVD playback with support for many kinds of video format including Div 4 & 5. Thus if you have this player and want to enjoy your Div 3 movies on it, you need to convert the Div 3 to Div 5 or Xvid.
However, if a Divx 3 file is encoded with VBR(variable Bit Rate) audio, the audio will easily get gradually out of sync with the video when you re-encode it. Thus following are the guides to help you convert Divx 3 files that have VBR audios to Divx 5 or Xvid files and keep video and audio synchronizing, using the free video converter and editor.
Use Dr.Divx
Dr Divx is a free and open source software tool to convert your avi video encoded in Div 3 to Div 5 or Xvid codecs. It can automatically converts the VBR audio to CBR audio and then re-encode the video to Div 5 with fast 2-pass variable bit rate conversons. It also supports AC3 audio if you download and install an AC3 filter separately.
Note: Since Dr.Divx has not been updated for years, it only works with the 6.8.5 divx codec pack installed. It doesn’t support the latest version 6.9.x divx codec pack which is available now on the official Divx website.
Dr Divx
Tip: If you want better quality, you can adjust the settings by: advanced settings/ Pre-Processing tab /to use the max video resolution (eg using the slide bar); then use the codec tab to set the Rate Control bit rate to 1200Kbps. If you set higher than 1200kbps, the video may not pay fine in some devices.
Use VirtualDub
1.Load the file in VirtualDub that will tell you with a pop-up that the sound is VBR and will cause a skew (out of sync) in the playback.
2.Under the Audio tab, select “Full processing mode” without adding other options.
3.Under the Video tab, select “Compression–Xvid Codec”
4.Under File, select “Save as avi” and select the location to save the converted file.
Note: don’t forget to try our video converters that will convert your videos in different format to high quality Xvid or H.264 videos with guaranteed synchronization of video and audio.
Not all conversions give you a satisfying result and audio out of sync is a common problem that happens to most of us, no matter the conversion is from a DVD to your computer or between different video formats. The cause of such problem is complicated and it may be due to the source movie, the converting tools we use or the converting methods. Whatever cause it is, we need to fix the problem.
Mainly there are two audio out of sync problems:
1.The audio is before or after the video constantly by same amount throughout the movie.
2.The audio is in sync at the beginning but progressively goes further before or after the video as the movie progresses.
The second one is mostly connected with DivX conversions and requires more time and knowledge to solve, while the first one is more common and easier to solve. It is worse if the video has both two problems.
Solutions to the problems are varying according to different situations. I have searched online and find some solutions listing blow:
For audio out of sync problem in AVI files, refer to:
http://forum.videohelp.com/threads/260935-Audio-out-of-sync-5-seconds-DVD-ripped-with-DVD-Decrypter-AutoGK-%28 (for constant out of sync)
http://www.gromkov.com/faq/faq2004-0064.html (for both problems)
For audio out of sync problem in MPG files, refer to:
http://club.myce.com/f66/how-fix-v-sync-problems-mpg-files-59487/ (for both problems)
More references that can help you:
http://forum.videohelp.com/threads/174082-How-To-Fix-Audio-Sync-Problems-101
http://forum.videohelp.com/threads/174081-How-To-Fix-Audio-Sync-Problems-102
Note: If you are annoying with such problem and don’t want to be bothered with fixing it, it is best for you to try to use converting tools for video converting or DVD ripping that will not have audio out of sync problems in the converted video.
