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VideoHelp - Forum and Software downloads
https://www.videohelp.com/oldguides/virtualdubedit#:~:text=Install%20and%20start%20Virtualdub%20%28extract%20all%20files%20to,Nandub%20or%20you%20will%20get%20audio%20sync%20problem.
AVI timing and audio sync - virtualdub.org
https://www.virtualdub.org/blog2/entry_027.html
¶ AVI timing and audio sync. Last time I promised I would write up some information about how VBR audio is popularly implemented in an AVI file; I'm going to generalize this slightly and talk about the timing of AVI streams. ... VirtualDub tries to use fraction math whenever possible to preserve the exact rate. The start (dwStart) of the ...
Audio - Video Sync Problem - VirtualDub - VideoHelp Forum
https://forum.videohelp.com/threads/323163-Audio-Video-Sync-Problem-VirtualDub
VD doesn't handle VBR audio very well. AVIDemux does it better. I'm guessing that some programs like VDM can't read the length of VBR audio correctly, and that's where the sync error comes from. VBR audio is commonly (mis)used by coders on the web to save a few bytes on the video filesize, but it often causes problems when re-encoding.
Warning From VirtualDub: VBR Audio Detected. Should I ...
https://forums.afterdawn.com/threads/warning-from-virtualdub-vbr-audio-detected-should-i-split-anyways.610354/
Acknowledge the message then go ahead and split the file, then check each section for sync. If it's out of sync, do the following to convert the VBR audio to CBR: Install the Lame mp3 codec. Load the original file into VirtualDub Click 'OK' at the message. Click 'Audio'. 'Full Processing Mode' 'Compression' 'No Compression' 'OK'
VirtualDub Sync 1.5.04 Free Download - VideoHelp
https://www.videohelp.com/software/VirtualDub-Sync
VirtualDub Sync is a modified VirtualDub with improved audio-video synchronisation when capturing video. Free software OS: File size: 492KB Portable version Old versions 9.0/10 3 votes Rate it
FccHandler Mirror - Browse /Virtualdub Wmv Plugin at ...
https://sourceforge.net/projects/fcchandler/files/Virtualdub%20Wmv%20Plugin/
Version 1.1 (October 7, 2007) VBR audio sync is much better now with VirtualDub 1.7.6 test4. Fixed a crash when no video codec is found, and updated the "WMV Information" dialog to show more info about the video and audio codecs needed.
Why does does my audio go out of sync every time I ...
https://sound.stackexchange.com/questions/23236/why-does-does-my-audio-go-out-of-sync-every-time-i-reencode-either-the-audio-or
It used to be commonplace for people to have to edit the framerate in VirtualDub (later VirtualDubMod); VDubMod provides a facility to adjust the video framerate to compensate for audio lag. Golden rule for audio accompanying video tracks: make sure it's digitised and encoded at 48 kHz. 48000 can be divided nicely into 24, 25 and 30. 44100 doesn't go quite as well.
VirtualDub: Bad Frames How to Cut Out and Keep Audio in ...
http://www.digitalfaq.com/archives/encode/1806-virtualdub-bad-frames.html
part1=trim(AudioDub(video,audio),0,81452) part2=trim(AudioDub(video,audio),81458,0) # clip1=part1+part2 # # ----- Resize -----BilinearResize(528,480) TemporalSmoother(1,2) AddBorders(0,0,0,0) Extract the wav file with VirtualDub using uncompressed option. This script should remove the bad frames and keep the audio in sync with video.
VideoHelp - Forum and Software downloads
https://www.videohelp.com/oldguides/virtualdubedit
Open the video, File->Open video file If a window popups and says that VBR audio stream detected you must use Virtualdub MP3 Freeze or Nandub or you will get audio sync problem. Install Virtualdub MP3 Freeze/Nandub and follow these steps again. If you don't get this message you can continue with this guide. Select under Audio->Direct Stream Copy.
Why, o why the Audio sync problem - iLounge Forums
https://forums.ilounge.com/threads/why-o-why-the-audio-sync-problem.192621/
First convert your movie using Virtualdub to some other format and see if audio remains in sync. In my case I used x264vfw, but I guess it doesn't matter as long the audio stays in sync and DVDVideosoft can handle many formats as input. Afterwards I used DVDVideosoft Free 3gp convertor to do usual conversion to MP4.
VirtualDub 1.8.0 Released - virtualdub.org
https://www.virtualdub.org/blog2/entry_187.html
The main big change in 1.8.0 is enhanced audio support, including: Support for reading and writing VBR audio with correct sync. Input plugins can expose true VBR audio. Support for multiplexing in raw MP3 tracks. Support for selecting the source audio track when multiple audio tracks are present. Built-in audio decoding support for µ-law, A ...
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