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Audio Delay On MP4 File - Avidemux
https://avidemux.org/smif/index.php?topic=17994.0#:~:text=Drag%20the%20extracted%20mp4%20raw%20audio%20to%20the,see%20audio%20delay.%20Enter%20-400%20and%20mux%20away%21
Audio Delay On MP4 File - Avidemux
https://avidemux.org/smif/index.php?topic=17994.0
If all is well, then place the original file in mkv toolnix. Disable the original aac track. Drag the extracted mp4 raw audio to the video input box. Highlight this new audio and on the right side you will see audio delay. Enter -400 and mux away!
A/V sync problem when muxing concatenated MP4 files ...
https://docs.microsoft.com/answers/questions/269053/av-sync-problem-when-muxing-concatenated-mp4-files.html
I noticed the difference in duration of audio/video streams, but I thought that when I mux them, I would get a file in which the last few seconds would have just the audio track. I started with testing the most basic FFmpeg command ffmpeg -i video.mp4 -i audio.mp4 -c copy muxed.mp4 , however the A/V turned out to be out of sync.
MP4Muxer 0.9.3 Free Download - VideoHelp
https://www.videohelp.com/software/MP4Muxer
Most excellent, it will let you set the frame rate, height and width as well as other stuff. I wish TMPGEnc Video Mastering Works 5 or 6 would do this on muxing streams, video Mastering Works 6 would say a h264 stream is 47.952 when it is actually 23.976, I never want to re-encode video or audio because it will kill the quality to the point I can see and hear the difference.
delay-audio-with-ffmpeg.sh · GitHub
https://gist.github.com/adrienjoly/e5b2db9c9a61f454ed08f56c32999f17
re-mux the exported audio mix with the video, with an audio delay of 0.1 seconds: ffmpeg -i harissa.mp4 -itsoffset 0.1 -i harissa.mix.m4a -c:v copy -map 0:v:0 -map 1:a:0 harissa.mix.mp4 I split into one video per song using https://github.com/mifi/lossless-cut , or:
Download MP4Muxer 0.9.3 - softpedia
https://www.softpedia.com/get/Multimedia/Video/Encoders-Converter-DIVX-Related/MP4Muxer.shtml
MP4Muxer is a lightweight piece of software created to mux MP4 streams and it’s based on the mp4creator command line tool. Basically, it’s the GUI version of a tool that is able to combine H ...
mux: aac/h264 out of sync issue (#886) · Issues ...
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/886
mux: aac/h264 out of sync issue. The muxed file is out of sync when using gstreamer. Tested on x264enc, fdkaacenc/voaacenc, mp4mux/mpegtsmux. FFmpeg produce file in sync. For the ffmpeg the delay is: "avg_av_delay_ms": -1.6 same as in the original file.
How to Fix Out of Sync Audio/Video in an MKV, MP4 or …
https://www.simplehelp.net/2018/05/29/how-to-fix-out-of-sync-audio-video-in-an-mkv-mp4-or-avi/
Use the “up arrow” if the audio is ahead of the video. That means if the people in the video are talking and you can hear them before their lips move, you’ll want to use the up arrow. That will ‘delay’ the audio, allowing the video to ‘catch up’. So in reverse, if the audio is behind the video you’ll want to use the “down arrow”. That will speed the audio up.
ios - Muxing AAC audio and h.264 video streams to mp4 …
https://stackoverflow.com/questions/50142384/muxing-aac-audio-and-h-264-video-streams-to-mp4-with-avfoundation
For OSX and IOS, I have streams of real time encoded video (h.264) and audio (AAC) data coming in, and I want to be able to mux these together into an mp4. I'm using an AVAssetWriterto perform the muxing. I have video working, but my …
How to Prevent MKVMerge adding a delay? - VideoHelp Forum
https://forum.videohelp.com/threads/367447-How-to-Prevent-MKVMerge-adding-a-delay
There's no such thing as negative delays in MKVs. If you mux audio using a negative delay, MKVMergeGUI actually removes an appropriate amount from the beginning instead (or as close as it can) which is fairly normal when muxing. If MediaInfo is reporting a negative audio delay for an MKV it probably means the video has a positive delay. I don't why, …
ffmpeg is generating an out-of-sync audio/video file ...
https://stackoverflow.com/questions/8844460/ffmpeg-is-generating-an-out-of-sync-audio-video-file
Show activity on this post. I am trying to convert a flv video to mp4 using a264, but the result video has a out of sync audio/video. The audio seems ok but the video seems slow and therefore out of sync with the audio. Here is the command I am running: /opt/local/bin/ffmpeg -i complaint.flv -f mp4 -vcodec libx264 -acodec aac -copyts -strict ...
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