The rule of the thumb is that, if the audio is played before the video, then that means we have to ‘add time’ to it (thus delaying it), so the video track can ‘catch up’ with the audio track. If not, click on the ‘Play’ button on ‘Avidemux’ window, so we can observe and see whether the audio comes before or after the video scenes. Now, if you know what the correct audio/video sync value is then you can skip this and go directly into the end of ‘ Step 5‘. Also make sure to enable the option called ‘Shift’ (disabled by default), as it is the option that lets you change the audio/video sync setting (shown below).Īny value that you enter here (‘Shift’) should be in milliseconds (1000 milliseconds = 1 second). Now open ‘Avidemux’ program and load the ‘troublesome’ multimedia file into it.īefore continuing, under the ‘ Video Output‘ and ‘ Audio Output‘ options, make sure it says ‘Copy’. If this method fails, then I’ve added another method that guarantees results in most situations at the end of the article as well.įirst of all, go to this page, download the package and install it (it has pre-built packages for Windows, Mac OS X and GNU/Linux). While the results are not always guaranteed, ‘Avidemux’ has a good track record. So if you’re having lip-sync errors in one of your multimedia files, then you can try the below ‘Steps’ for a possible fix. ‘Avidemux’ also supports multiple operating systems, therefore you don’t have to be only a Windows user to use it either. ‘ Avidemu’ is actually one of the best free audio and video synchronization software that you can use (it’s originally intended purpose is actually to act as a simple video editing & encoding software which comes with in-built filters etc). Here we suggest ‘ Avidemux’, you can save the audio & video out of sync setting permanently for a lots of video & audio codecs (HD, Blu-ray or even 4K videos!) and container formats (MP4, MKV, FLV, MPEG, AVI etc). Many multi-media players such as VLC, KMPlayer, MPLayer etc which gives you the ability to manually adjust the sync (video or audio) setting, but this method however is that it only saves the sync setting Temporarily, and it will be lost the next time you play it. If it’s hardware based, you should be looking elsewhere. This given solution is only works if Sync Problem lies with the multimedia file itself.
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