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audio - How to force A/V sync using mkvmerge and …
https://stackoverflow.com/questions/43359375/how-to-force-a-v-sync-using-mkvmerge-and-external-time-codes
In discussion with the author of mkvmerge I did determine the following answers: It would be best to fit the sync the video to the audio as some players use the audio timestamps (timecodes) as reference, and video is easier …
How To Sync Your MKV Movie Using MKVToolNix - …
https://www.youtube.com/watch?v=FKGTTjhRcYo
This will show to you how to adjust or sync your mkv file (video and audio).Download MKVToolNix @ http://www.bunkus.org/videotools/mkvtoolnix/downloads.html
mkvmerge -- Merge multimedia streams into a Matroska file
https://mkvtoolnix.download/doc/mkvmerge.html
1. Synopsis mkvmerge [global options] {-o out} [options1] {file1} [ [options2] {file2}] [@options-file.json] 2. Description This program takes the input from several media files and joins their streams (all of them or just a selection) into a Matroska(tm) file; see the Matroska website . Important: The order of command line options is important.
Fixing Audio-Video Sync And Saving The Results ...
https://www.megaleecher.net/solution_for_out_of_sync_audio_and_video
Use mkvmerge -i your_video_file.mkv to get information about the video file, we need to note down the ID of the audio track we wanted synced. Finally, perform the audio sync shift using the command : mkvmerge -o output_fixed_filename.mkv -y audio_track_id:time_to_shift your_video_file.mkv , see the example below for clarification.
Help - Sync separate audio track with mkv file - Original ...
https://originaltrilogy.com/topic/Help-Sync-separate-audio-track-with-mkv-file/id/76289
Go back to your mux’ing software (TSMuxer or MKVToolNix) and find the delay feature. Load the same video and audio streams. If your remixed video has the sound before the actual time (ex. you hear spoken words before the lips move), then in the muxing software select the audio stream and apply a value in the delay box. Start off with a value of 100.
how to sync audio w/ mkvtoolnix? : mkvtoolnix
https://www.reddit.com/r/mkvtoolnix/comments/kzzw1k/how_to_sync_audio_w_mkvtoolnix/
First, determine how long the lead-in is with whichever player you prefer. Then select that audio track in MKVToolNix GUI & enter the length in negative milliseconds. For example, if the lead-in is 48 seconds long you'd enter -48000. Then start multiplexing. What MKVToolNix will do is add that "delay" value to each timestamp of that track.
Audio out-of-sync in mkv (MkvMerge) - VideoHelp Forum
https://forum.videohelp.com/threads/337549-Audio-out-of-sync-in-mkv-%28MkvMerge%29
And when I go to add the audio it gets out of sync. already checked with the media looking for info on the audio delay, but it gives me no value. the source has two audios, with the first 22 ms of delay, the second that I want to use has no value. if I join mkv + without delay the audio is out of sync, if I put in 22 ms delay is also out of sync.
Extract audio or video from MKV files with mkvtoolnix ...
https://www.chrismacpherson.net/audio/video/extract-audio-or-video-from-mkv-with-mkvtoolnix/
Extract audio and video tracks from mkv file Permalink. For this step we are going to run this command. mkvextract tracks your-mkv-file.mkv 0:video.h264 1:audio.aac. In the above command we are using mkvextract, part of mkvtoolnix, to extract the video track which is encoded using the ‘h264’ codec and also the audio track which is encoded using the AAC codec.
Stretch or shrink audio tracks · Wiki · Moritz Bunkus ...
https://gitlab.com/mbunkus/mkvtoolnix/-/wikis/Stretch-or-shrink-audio-tracks
Use mkvmerge's --sync option or MKVToolNix GUI's corresponding controls delay and stretch by. For example, if your movie is 2h long and your audio track with the track ID 1 is too short by 30s, you can stretch it by the factor movie_length / audio_length or the equivalent movie_length / (movie_length - audio_too_short).
MKV Muxing Audio Out-of-Sync with Video | AfterDawn ...
https://forums.afterdawn.com/threads/mkv-muxing-audio-out-of-sync-with-video.647487/
Using a program called "mkvmerge GUI," I was able to do this. But, the audio is out-of-sync (perhaps progressively) with the video. Now, the audio seems to start off fine at the very beginning, so I don't think it's an audio delay issue. Therefore, I tried the "Stretch by" option using file length info from ConvertXtoDVD:
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