All Questions
64
questions
2
votes
0
answers
688
views
FFMPEG Extracting MP3 from MP4 returns shorter audio file
I have lost so much time over this problem and really need some professional help. Over the last days I recorded some VHS tapes, I used ffmpeg which worked great! When I finished, I noticed that must ...
- 21
1
vote
1
answer
2k
views
Trimming to milllisecond in FFmpeg causing massive slowdown in processing speed
I'm new here, first time joining a forum site like this so my sincerest apologies if I suck! Thanks in advance for your patience. I'm running Windows CMD on my laptop.
I am trying to trim (delete) ...
- 13
0
votes
0
answers
2k
views
Audio and video from MKV file getting out of sync in multiple media players
I noticed an issue while playing MKV files on my HP laptop. After about an hour or so, the audio starts to get out of sync with the video, and the delay becomes greater and greater. If i restart the ...
- 141
1
vote
0
answers
516
views
Youtube Audio and Video go out of sync in Chrome and some of my other videos
Hi i had a question since i cant seem to figure out whats wrong YouTube also some of the videos on my computer the sound will be out of sync withe the video. Its like a 1 second laps in the video. i ...
- 11
1
vote
1
answer
2k
views
Ensure audio and video track are EXACTLY the same length
I generate 200 video files based on audio files generated using sox, combined with image files. Most clips are shorter than one second, none is longer than 6. I then concatenate these files and there ...
- 9,014
0
votes
0
answers
64
views
Upgraded MB/CPU/RAM, video players now have sync problems
A month or so ago I upgraded the CPU, motherboard and RAM of my PC (from an i5-2500K to an i7-9700K). Windows 10 seemed to handle this change very well without having to reinstall (besides having to ...
- 179
0
votes
2
answers
2k
views
Synchronize video viewing between computers with matching local files?
Let's say I have a video file that I'd like to watch with some friends of mine in different states. FTP makes it easy enough for all of us to get a local copy of the file.
Sure we could call each ...
- 706
0
votes
1
answer
960
views
Inconsistent audio sync, capturing with V4L2 and PulseAudio
Not sure what's going on here but I can't seem to get consistent audio sync capturing from HDMI with ffmpeg. I can get consistent results from OBS no problem (video is always 100ms or thereabouts ...
- 123
2
votes
0
answers
1k
views
ffmpeg concat filter adds audio delay gradually
I use ffmpeg to concatenate a lot of video files, using filter_complex. However, the result file has its audio out of sync gradually.
and I use mediainfo --Inform='Video;%Duration%' filename.ext and ...
- 21
0
votes
1
answer
6k
views
FFMPEG audio/video out of sync after converting from mkv to mp4 [duplicate]
So, after i convert the mkv file to mp4, the audio plays at the correct time but the video ends early. That means the starting bit of the video has been cut off and so the video starts at a later ...
0
votes
1
answer
116
views
How to synchronize graphics card FPS with movie FPS automatically?
When I watch movies on my PC I have to "guess" the movie's FPS (24, 25, 30, ...) every time, then set the guessed FPS in my video driver's Refresh Rate setting. Only then the movie is shown fluently ...
- 143
3
votes
1
answer
4k
views
Capture multiple camera in sync
How can I capture multiple webcam stream synchronized?
I tried using FFMPEG, mapping the outputs to different files in the same command line, but this resulted in 2 un-synchronized videos never the ...
- 171
0
votes
1
answer
41
views
How to turn off rogue OneDrive video syncing
(I am running Windows 7.)
Yesterday I did some clean-up and moved some mp4 files from my desktop to "My Videos". Later I got a message that my OneDrive was almost full. Then I realized that when I ...
- 626
2
votes
0
answers
1k
views
FFMPEG Audio out of sync when concat
I'm processing a load of videos to concat together using Java on a Linux server.
First, I mix in an audio track with this process, depending on if the video already has audio or not.
ffmpeg -y -i ...
- 355
7
votes
0
answers
3k
views
Video playback with multiple audio tracks to separate audio devices
I have an mkv file with multiple audio tracks (separate languages) that should be played simultaneously from the same device. That is the video should be played with track #1 on my mac, while audio ...
