Fix Audio-Video Sync Problems In Video Files

Megha Sharma
Megha Sharma linkedin | Updated On - November 28, 2022 |

Read time 7 minutes

Summary – The blog discusses a common issue faced by many users, i.e., audio-video sync issues. We have provided some free solutions and recommended an ultimate professional solution – Kernel Video Repair to fix all the corruptions issues in video files.

Common Scenarios

Let us check some common queries of users complaining about audio-video sync issues on multiple forums.

The downloaded MP4 video file is completely out of sync to its audio even though downloaded from a genuine source link.

“Problem is in my old DVD videos. I cannot imagine this bad audio-video sync as we got together with real excitement to watch this.”

“Just started watching a newly processed video on my recorder, but it does not seem proper at all as audio is running really fast than the video.”

“My colleague sent me some business videos for a review, but to my surprise, it plays out of sync every time I play.”

However, there are many other scenarios also that indicate audio-video sync issues. Every user requires an immediate solution to get back to normal and play the video files. It often leads to other errors like Windows Media Player encountered a problem while playing the file. It is good to know about some top reasons for the audio-video sync issues in videos.

Audio-Video Sync Issues in Videos – Top Reasons
  • Video Media Player is outdated or improperly installed
  • Incorrect settings like large video frame length on the media player
  • Corruption of video files due to malware, antivirus attacks
  • Incorrect video editing on an external editor application
  • Bad sectors on system hard drive/other system issues
  • Incomplete download or export from its original source
  • Incompatible Video Media Player
Basic Solutions to Fix Audio-Video Sync Problems

It is possible that your problem of audio-video sync in video files will get resolved by following some simple solutions. So, it is suggested to try them before moving for other advanced solutions. Here is a list of such basic solutions for fixing audio-video sync problems.

  • Download the video file from the original website after deleting the existing one. You can try switching the web browser to download the video file.
  • Try other video media players to check if the problem is with your existing media player
  • Reconnect external devices like Bluetooth, speaker, etc. used to view video files
  • Reboot your system once and try running the affected video file again
  • For high-quality video files (HD & 4K), try playing the video files at a higher resolution
  • Check for a stable internet connection for live video streaming on YouTube and other channels. Contact your ISP to get the issue fixed.
  • Try to update your media player and device drivers.
  • Update your antivirus and perform a full system scan for bug fixing.
Resolutions Using Free Video Media Players

Most of the users play their videos on standard video media players – the VLC Media Player and Windows Media Player. One can modify the settings of these standard media players to fix the audio-video sync in video files.
In VLC Media Player tools, the Track Synchronization option allows the user to adjust the audio track synchronization in the video manually. It is helpful when the audio is running faster or slower than the video track as users can adjust the audio delay using this feature. Here is the simple process to use this feature.

  1. Start your VLC Media Player and open the video file.
  2. Click on the Tools menu and select the Track Synchronization option from the drop-down list.
  3. Track Synchronization

  4. A new dialogue box Adjustments and Effects will get opened. Here, switch to the Synchronization tab. Under the Audio/Video section, move to the Audio track synchronization option and select up and down arrows to adjust the delay time between audio and video as per the requirement. Click the Close option.Try running your video now. You may require adjusting this setting multiple times to get the final result.
  5. Note: Users can also try pressing J or K keys when their video is playing, and there is an audio-video lag issue. Doing this action would automatically adjust the audio lag with video for plus/minus 50 milliseconds.

Windows Media Player settings include network buffering and audio-video synchronization options, which can be utilized to fix the problem. Let us check out the process in steps.

  1. Start your Windows Media Player, open the mis-synced video file on it.
  2. Click on the Organize section and select Options from the drop-down list.
  3. Windows Media Player settings

  4. From the Options dialogue box, click on the Performance tab. Here, move to the Network Buffering section and enter values between 1 and 10 against the Buffer option. There is another option under the Video Playback section – Drop frames to keep audio and video synchronized that you could enable by selecting the checkbox. Click OK to save these settings.
  5. Drop frames to keep audio and video synchronized

  6. Run the video again to check this setting helped.
  7. It is not sure that the above solutions are enough to fix the problem when the audio-video synchronization issue is due to the corruption of video files. Such a situation requires quick repair of the video files in which a robust video file can be of great help.

An Ultimate Solution to Fix All Video Issues

To deal with corrupted video files, users can trust the most efficient and in-demand tool, the Kernel Video Repair tool. It readily scans and repairs corrupt video files of all formats from all types of recorders and devices. The working process is quite simple, with simple steps and highly interactive features. There are zero chances of failure with this advanced tool as it is built with strong algorithms and is capable of fixing all the issues, even when videos are playing in slow motion. So, visit the website and get more information about the tool.


Q. Why my downloaded video file has out-of-sync audio and video tracks?
A. It may happen if the download link is not genuine, or the download is interrupted due to which incorrect/incomplete downloading of the video file or other reasons like a sudden shutdown of the system or network failure during the download process.

Q. How does the free trial version of the tool work ?
A. The tool recovers corrupt video files for up to 30 seconds only.

Q. I am currently using KM Video Player to run my video files but the audio track is going a bit forward than the video track. What should I do?
A. In this case, you can utilize the Track Synchronization feature in the VLC Media Player to delay the audio track for some seconds as explained in the article itself.

Q. Does the tool support repair of corrupt video files in different file formats together?
A. Yes, of course. The advanced video repair tool supports multiple video file repair even if they have different file formats.

Q. How can I fix the minor audio lag issue while playing the video?
A. If you are playing your out-of-sync video in the VLC Media Player, just press J or K keys to set audio lag with the video for plus/minus 50 milliseconds automatically.

Kernel Video Repair