Ffmpeg Transcoding Audio Out Of Sync

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FFmpeg concat video and audio out of sync - Stack Overflow

https://stackoverflow.com/questions/35416110/ffmpeg-concat-video-and-audio-out-of-sync#:~:text=Using%20concat%20and%20encoding%20the%20video%20seems%20to,encoding%20results%20in%20a%20slowly%20increasing%20sync%20issue.

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video - FFMPEG audio out of sync when transcoding ...

https://superuser.com/questions/1042988/ffmpeg-audio-out-of-sync-when-transcoding-demuxing-from-dv

SRC="/home/brian/Desktop/audio_shift" set -f for FILE in $(find "$SRC" -name *.dv); do echo "Konvertiere $FILE " dvgrab -input $FILE -f dv2 -s 0 -t done This generates an AVI file (DV2 format), per each DV file in the current folder, which can be further converted without any audio sync problem (e.g. to MP4).

Long video ffmpeg transcode makes audio go out of sync ...

https://video.stackexchange.com/questions/25149/long-video-ffmpeg-transcode-makes-audio-go-out-of-sync

After trying a few random things, I managed to make the audio/video sync by changing the rate of the audio: ffmpeg -i witness.mov -af asetrate=48018 resampled.mkv The resampled.mkv has correct sync, but unfortunately the audio is shorter than the remaining video for a few seconds. Which means the problem is really that the frame rate is slightly slower than it should in the …

FFMPEG Audio/video out of sync after cutting and ...

https://stackoverflow.com/questions/60005999/ffmpeg-audio-video-out-of-sync-after-cutting-and-concatonating-even-after-transc

For each video, I decode it, trim a clip from it and then encode it to 4k resolution at 25 fps with its audio: ffmpeg -ss 0.5 -t 0.5 -i input_video1.mp4 -r 25 -vf scale=3840:2160 output_video1.mp4. I then take each of these videos and concatonate them together with the concat demuxer: ffmpeg -f concat -safe 0 -i cut_videos.txt -c copy -y output.mp4. I am taking …

FFMPEG audio out of sync when transcoding (demuxing) from ...

https://itectec.com/superuser/ffmpeg-audio-out-of-sync-when-transcoding-demuxing-from-dv/

FFMPEG audio out of sync when transcoding (demuxing) from DV. audio dv ffmpeg sync video. I've been stuck with this problem for months. I have over 50 DV tapes (from and old Sony camcorder) to be converted to a more modern, usable format (most likely H264). I've started off with pulling the files to my PC (via firewire) using DVGRAB.

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