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[MPlayer-users] Audio sync problem with mencoder
https://groups.google.com/g/mplayer_users/c/2kb7bEHOMkQ
I've been a happy user of mencoder for many years, mainly for ripping DVDs. Something changed recently and it stopped working: specifically, the audio is no longer in sync with video. I first started having this problem with Ubuntu's binary package a couple of weeks ago; it's still happening with the current binary from Ubuntu 11.10 (version
Mencoder // ffmpeg flv file Audio-video sync problem ...
https://forum.videohelp.com/threads/304491-Mencoder-ffmpeg-flv-file-Audio-video-sync-problem
So, find the frame rate of your source, and make sure that you convert to same. At minimum, you'll need to add a switch like "-ofps 24000/1001" or some such thing (replace 24000/1001 by the desired output framerate). I'm sure others with more experience with ffmpeg will chime in with better advice shortly. Quote.
ffmpeg and mencoder slice mp4 video audio out of sync
https://www.linuxquestions.org/questions/linux-software-2/ffmpeg-and-mencoder-slice-mp4-video-audio-out-of-sync-780700/
I am trying to use ffmpeg and mencoder to slice a portion of my video out but the audio is always 2 seconds out of sync. ffmpeg -i bird.avs.MP4 -acodec copy -vcodec copy -ss 00:08:40 -t 00:01:00 test.mp4 mencoder -ss 00:08:40 -endpos 00:01:00 -oac copy -ovc copy bird.avs.MP4 -o test.mp4
mencoder(1): movie encoder - Linux man page
https://linux.die.net/man/1/mencoder
mencoder (MPlayer's Movie Encoder) is a simple movie encoder, designed to encode MPlayer-playable movies (see above) to other MPlayer-playable formats (see below). It encodes to MPEG-4 (DivX/Xvid), one of the libavcodec codecs and PCM/MP3/VBRMP3 audio in 1, 2 or 3 passes.
flv to avi audio sync issues - MediaCoder
https://forum.mediacoderhq.com/viewtopic.php?t=5011
MPlayer or MEncoder as Source = possible out of sync A/V FFmpeg as source = OK However actual can't use correctly FFmpeg as source - no problem in older MediaCoder builds. At this moment transcoding FLV with variable frame rate, it's not good idea (exclude some older builds). Waiting for fix bug...
Audio Sync Problems | Page 9 | RedFox Forum
https://forum.redfox.bz/threads/audio-sync-problems.340/page-9
As time permits I'm going to continue digging through their forums. MEncoder has been around for a while so this has probably been answered. Of course there are different audio and video codes in use within MEncoder so we have to determine is the constant sync problem (as opposed to the progressive sync problem) for all or just some combinations.
[Ffmpeg-user] demux ts in one operation to keep audio ...
https://ffmpeg-user.ffmpeg.narkive.com/dDwN7uNd/demux-ts-in-one-operation-to-keep-audio-video-sync
for audio and once for video, but this leads to bad sync at the beginning of the files, and very very bad sync at the end of the file. I need 2 seperate es files for the mpeg cutter application I use. I tried reencoding the video with mencoder - I chose a video bitrate only slightly different than the original (slightly higher), and the
Audio Sync Problems | Page 8 | RedFox Forum
https://forum.redfox.bz/threads/audio-sync-problems.340/page-8
I tried MP4 and the audio was out of sync. The devices.ini file for iPodNano does not have the audio offset of 0.1ms. For example if you open C:\Program Files\SlySoft\CloneDVDmobile\Devices.ini and see [* Generic (DivX)] mopts=-audio-preload 0.8 -delay 0.1 -lameopts br=%abrate% note the delay of 0.1 - thats an on purpose delay of 0.1ms
Netflix audio is out of sync
https://help.netflix.com/en/node/100780
If Netflix's audio is out of sync with the video, it means there's a problem with your device or the title you're trying to watch. Follow the steps below to fix the problem. Android phone or tablet. Check if other TV shows or movies work. If you get the same problem with other TV shows or movies, skip these steps.
Audio Sync Issues - Comskip Support Forum
http://www.kaashoek.com/comskip/viewtopic.php?t=567
You will notice that the audio is out of sync after the cut. There is nothing comskip can do to solve this Videoredo has a tool called Quick Stream Fix that fixes these kind of problems. It should be run BEFORE running comskip or doing any cutting.
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