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VirtualDub audio out of sync, other video players all in ...
https://forum.videohelp.com/threads/377977-VirtualDub-audio-out-of-sync-other-video-players-all-in-sync
I converted an MPEG-2 video to an h.264 video using VirtualDub, exporting to an AVI container. 59.94 fps (using bob doubler, etc) 720x540. In "File Information", I see "Decompressor ffdshow Video Pack (H264) for this video in Virtual Dub. I have a related audio track as an uncompressed WAV file.
Audio/video sync issue. Capturing with Virtualdub ...
http://www.digitalfaq.com/forum/video-capture/7643-audio-video-sync.html
Unless I press PLAY on the VCR before I start the capture, the audio will always lag behind the video depending on how long between the two steps. Say for instance, if I hit PLAY on the VCR 2-3 seconds after I start the capture in Virtualdub, the audio will lag behind the video for 2-3 seconds from beginning to end. If I do it the other way around, by having the tape already …
Audio Out of Sync - 2 Minute Fix! - Doom9's Forum
https://forum.doom9.org/showthread.php?t=125739
*** Assuming the video is ahead of the audio at the end of the movie... 2. Open Virtual Dub (I'm running version 1.6.11 build 23774) 3. Click "File" >>> "Open video file..." 4. Navigate to the movie (avi file) that has the audio that's out of sync and open 5. Click "Video" >>> "Direct stream copy" 6. Click "Video" >>> "Frame rate..." 7.
Audio/video out of sync using Virtualdub - Page 2
http://www.videoforums.co.uk/threads/103-Audio-video-out-of-sync-using-Virtualdub/page2
This was working fine until recently. Now every time I convert an mpg to an avi using Virtualdub, the audio and video progressively gets out of sync before the end of the file. I use the MPEG Layer-3 audio codec and the Divx video codec. I set the audio codec to 96 kbits/s, 44,100 Hz. Any help would be greatly appreciated.
VirtualDub documentation: Capture - virtualdub.org
https://www.virtualdub.org/docs_capture.html
Timing correction is disabled, so audio on long captures may be out of sync. The capture file will be invalid if it exceeds 2GB. Only one capture file is allowed -- no multisegment captures. VirtualDub won't be able to display the compressed video frame size. Video filtering options that change the size of the frame aren't allowed.
AVI timing and audio sync - virtualdub.org
https://www.virtualdub.org/blog2/entry_027.html
¶ AVI timing and audio sync. ... Since the AVI stream sample boundaries are now exactly between the MPEG audio frames, and not between every byte as the is indicated by the normal nBlockAlign=1 for MP3, the player always feeds data to the decoder starting on MPEG audio frame boundaries. ... Noé pointed out last time, though, you can place ...
FFmpeg concat video and audio out of sync - Stack Overflow
https://stackoverflow.com/questions/35416110/ffmpeg-concat-video-and-audio-out-of-sync
Step 1 Pad out the audio in each segment ffmpeg -i segment1.mov -af apad -c:v copy <audio encoding params> -shortest -avoid_negative_ts make_zero -fflags +genpts padded1.mov Or
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