Fix audio delay vlc mac

My problem I pulled in a mp4 and saved as an mp4 but it will not save as a useable file. Usually a mp4 file looks like a little film clip in my files. This looks like a piece of paper with the end folded over and list it as just file. Any suggestions. That worked. Thank you. This is so cool. I have deleted so many otherwise great bootleg concert vids because of the out of sync. Now I can fix them. I love it. I appreciate your time to help. It works good until I save it and then it reverts back to non-sync. What am I doing wrong? Do I have to let the video play full length or can I stop it when I have the correct sync and save it.

I have tried it both ways and it does not work. Still out of sync.

Also unless I save it as the original name, it will not save at all. Norton Rating Norton Safe Web has analyzed open-any-file. Below is a sample of the threats that were found. Total threats on this site: Try mkvtoolnix mmg, it always works for me. I still use Avidemux for other things, but mmg be better to fix OOS. Just to get an idea: No need to say with that time shift the original video was almost un-viewable. At FPS level, the correction was from This slowed a bit the video, thu sshowing a perfect lips-sync all over the play-back.

The following works for me: It seems to be a bug in thee GUI. Thank you very much for the information.

How to Solve VLC Audio Delay Problem and Sync Audio with Video

It really fix my problem, that I was desperate to solve. Thank you very much. I have the same issue. Although this blog post did not provide me a full solution, the quality of questions and answers teached me all I needed to solve my unexpected lip-sync issue. Thank all of you. And, particularly Gayan who provides a great long time follow-up. I grab a terrestrial DVB TV stream to files using a tuner; I display the end result on a television set thanks to an USB hard disk; Avidemux is, as of my opinion, the ideal software to process the files: Dumped directly to a file, the stream results in a TS container file, readable by neither VLC, Avidemux nor my television set.

Mplayer plays it perfectly, without lip-sink delay.

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This is good news. The stream does contain information for a player to play the streams in sync. In order to avoid a time consuming file to file conversion to make the file Avidemux compatible, I convert the stream to PS, on the fly at grabbing time. The file is readable by VLC and Mplayer without audio delay. Unfortunately, played or exported by avidemux 2. Maybe later versions of Avidemux fix this silently with no delay.

There was a pretty trial and error method described above for estimating the correction shift to apply. I discovered that the appropriate time shift amount is, in my specific case, provided by mediainfo. Applying the delay reported by mediainfo fixes the lip-sync issue for my programs, not only at the beginning, but for the whole duration.

The only con of this method is that it is a two phases process. My bash script launches Avidemux, opens the file and presets shift delay and output container type. For those who like scripts, it follows. When I save the file, it always come out out of sync, though the audio is a little faster than the original file, but out of sync nevertheless, even though it was perfect on the playback. Please help?

It works wonders after the frustrating Avidemux. Thank you so much for the simple guide!!! At first it worked fine for a couple of videos but when I got a third synced correctly and tried to save using Muxer MP4, I got the following error messages: What is wrong? Can anyone explain why and how to cure the fact that Avidemux when playing an mp4 video other file types not tried I have a 5 second audio delay when played on one computer but but not when played on another computer?

I have installed the same release of Avidemux. Unfortunately, the PC I have intended to use for storing, playing and editing videos is the PC that has this audio delay problem. Usually, when cutting parts out of an mp4 file, I get the message about the cuts not being at the start of an Iframe but that does not matter.

Synchronization of the video and audio is not always perfectly, especially if you shoot at a distance and have very poor reference sound.

Syncing Audio in VLC Media Player

Hey, man, thanks a lot for this! It really help a lot! Thanks so much for posting this. Truly appreciated. I use my XP laptop to play videos to my projector as its small. Please help. This worked really well for me with some files I had made. Very clear explanation and correcting each video was quick. Thanks once again. We recently discovered a solution for importing MTS files without losing sync.

The import is fast , with no loss of sync , and produces a MP4 file which easily imports into iMovie. I use iMovie6 with the GeeThree plug in for multi-cam, which unfortunaltely does not offer the sync fixing feature. My problem is similar: Conversion is excellent but voice-lip-syncing is way off…always, so the.

Does the lip sync gets worsened as the playback progress or is it a constant delay? Do you get small errors while copying the DVD? If it gets worsened as the playback progress, then it might be because the audio playback rate is not compatible with the video playback rate. Sorry about the late response.

Thank you so much! Almost a 2-hour video was out of sync from the start. I tried reinstalling, installing the 32 bit version, launching the program in compatibility mode and nothing worked. So I did the best I could and installed Avidemux in Windows 8. Before making any changes, take a note of the default values or if you forgot them, you can simply uninstall and re-install Avidemux. If none of the above works out for you, then try install an older version of Avidemux which you can accquire from the below link:.

Please let me know what happened. Click the below link to see a screenshot of some of the settings I mentioned above:. Please, a situation where the audio output starts coming out before the video at the middle of the movie and not the beginning, how can i solve this issue.. How can i solve this issue without affecting the starting of the video?

These issues are usually caused by damaged headers or the index I presume. Sorry about that Ken. Ken, perhaps you could use an MP4 splitter to isolate the part s of the file where there is a problem — then join it back up? Not the neatest solution but it may work. Thanks for sharing.

This program looks great. I used to read a guide about syncing audio and video form this post http: Here is what I did to fix a movie that started off in sync but drifted out of sync toward the end of the movie. Get frame rate for video track frames per second. Get the total frame count for the video track. Divide the total frame count by the frame rate to get the duration of the video in seconds. Get the exact duration of the audio track and convert to seconds. You may need to extract the audio track from the video to calculate the exact duration.

I did this with mkvtoolnix. A stretch factor that is greater than one will increase the duration of a track. A stretch factor less than one will decrease the duration of a track. Now you will need software to adjust the duration of one of the tracks to match the other.

In my case the audio track duration was shorter than the video. I used mkvtoolnix, selected the audio track, inserted the stretch factor into the stretch by field which was greater than one , clicked Start muxing. In a few seconds, the software was done, the track durations matched, and the audio and video were in sync. If the audio is too late, you need to reduce the duration of the audio track to match the video OR increase the duration of the video to match the audio track.

The stretch factor is the amount that you adjust one of the tracks to match the duration of another.

The goal is to make both the audio and the video tracks of equal duration. This might also be useful for subtitles that are out of sync. Great answer! I think I game a very similar one either on this post on on the other — MKVToolnix, that I mentioned at the end of this post as well. You have NO idea how much this helped me. I was so frustrated because I recorded an amazing gameplay and for some reason Bandicam recorded the video with unsynchronized audio.

I kept looking for videos and articles but they were all about synchronising audio over already existing audio. Thank you for this!! Good day, I actually fix out of sync audio and video using handbrake. Thanks I will download Avidemux. I have a gopro mp4 file which I need to open. The two mp4 files have data but neither can open in quicktime. Also have tried two repair utilities and they cannot open it either…remo repair and stellerphoenix repair. Have you tried using MkvToolNix? My original file was a. WMV file so I could not save it successfully it ended up being very garbled using Avidemux.

How to Sync Audio and Video in VLC

So I used another software — NCH videopad editor — to convert it into a. AVI file and then opened that in Avidemux. It finally worked! What a relief, thank you so much! For those with a recording that has dropped frames due to recording from a degrading source, this does absolutely nothing. I have a video, recorded from VHS that has so many distorted frames that the capture device dropped, that the video ends at Both audio and video start synced at This is the TRUE monster of a sync problem that has plagued me for years.

Is there a solution for this type of sync problem? Yes there is a possible solution and it has already been answered by me and a few others as well. If the file you are playing is in mkv container there is an easier fix than this. Open header editor in MkvToolNix Gui. This you can do in under 1 minute and the changes are permanent. You could do this to mp4 containers too. This was awesome! Thank you: Lots of comments but for anyone coming across this one… this is what I did on Linux. I choose to reencode instead of playing with audio synching Shift.

Mint Cinnamon This is the best Sync Program out there. I fixed audio sync issue in my MP4 video file in seconds. Thank you Gayan, you are a live saver. I figured it out. Select the time where the problem occurs. Use that method to cut out and save the clips into new files as part 1, part 2, part 3, etc. Select Mkv Muxer as Output format before saving. Opened MP4 — got error message about no demux.

It would be good to understand the problem with Avidemux instead of going to another tool that forces a file type change. No wonder this article appears high up in Google searches- it worked, even after I raised a cynical eyebrow that it might not worked properly several years after its first publication. Thank you very much for such a clearly written guide!

I followed your suggestion and it worked perfectly. Thanks so much for the post! Is the audio playable on other players say on VLC for instance? Avidemux worked as you described. I had to use the MP4v2 muxer to get it to work. Thanks very much for posting this! After quite a few hours over several days running down a bunch of blind alleys, I found this post and I was finally able to fix my audio sync issue. Thanks so much for turning me on to Avidemux!

I linked back to this post twice in my own article on techstrations. Thanks again! I have one video that I have to adjust ms but is it better to use or ? Maybe we might see such tool in the future with the development of machine learning, but as of now, as far as I know, there are no such tools. This seemed so perfect. I fixed the sync in the programme. OMG thank you so much. All I needed was to make my video audio sync with my gameplay I recorded.

• How to Fix Out of Sync Audio/Video in an MKV, MP4 or AVI.
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After spending like 3 hours to find solution for it, this actually does the job! Hello My audio is 85 min. The movie I want to put it is 90 min. How can I resync the mp3 from 85 to 90 mins? From FrameRate 23 to Frame rate 25 and that is all with subs! But how is it at the audio? Thx in advance!!! Never actually felt compelled to leave a feedback to any post like this. Thank you soo much. Will say…. If I were to use this technique, it will unsync the parts that our syncing well. What do you do if you have my issue?

I loaded the media on the Avidemux 2. By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. When I play a movie with subtitles on VLC media player , the text is often displayed too soon or too late. Is there a way to delay the starting point of the subtitles? You can also just press H and G while the video is running to align the subtitles backward and forward in time; for the voice use J and K.

The increments are in milliseconds, so it can be pretty easily fine tuned that way. If you want to fix the subtitles 'for good', I recommend Subtitle Workshop ; it's free. There is a much more easy way to do this via the advance synchronisation functionality of VLC. So to shift the subtitle of 3 second you can run vlc with the following command line. In a similar way acts the option --sub-fps that override the normal fps. For further information invoke vlc -H or check the online vlc user manual. The best way to synchronize your subtitles is not via VLC tho it is possible. To permanently synchronize subtitles you would need to use tools like SubtitleWorkshop and through that tool you can easily edit subtitles the way you want, even set first and last spoken like synchronize subtitles even with more accuracy.

VLC has an advanced support for subtitles. You can easily synchronize subtitles with keyboard shortcuts G and H within the application. However, if you want more functions and possibility to save synchronization permanently in your subtitle file, then you would need to use tools such as Subtitle Workshop. Through this app, you can easily set the first and the last spoken word in the movie and subtitle timings are automatically adjusted between these two lines. By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service , privacy policy and cookie policy , and that your continued use of the website is subject to these policies.

Home Questions Tags Users Unanswered. How can I re-sync the subtitle and the video using VLC media player? Ask Question. Peter Mortensen 8, 16 61 Pierre Watelet Pierre Watelet 2, 6 24 Open VLC media player. Click the File Menu. Click Open File. Click Browse to Open the Movie. Check the "Use a subtitle file" Box. Click Browse to Open the Subtitle. Click "Advanced Settings" Move the Delay into the minus if the subtitles are too fast.