How to Fix VLC Audio Not Sync Issues? | All Solutions

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As a powerful program, VLC isn't only for media file playback but offers more features. If you encounter an out-of-sync audio issue, you can also use VLC Media Player to fix the issue. Let's see how to fix VLC audio delay or audio ahead of video issues.

※ Use Keyboard Shortcut Keys (Temporary Fix)

Step 1. Run VLC media player and play the video that is out of sync with audio.

Step 2. For VLC audio sync on Windows, press the "J" hotkey on your keyboard to make the sound go ahead of image. Or if you need to slow down the audio, press the "K" hotkey. To fix VLC audio delay on MAC, "F" is for moving the audio forward; "G" can move the audio backward.

Note. Each time you press the related hotkey, the audio will be speeded up or slowed down by 50 milliseconds. If you press the hotkey continuously, the number of milliseconds will be incremented accordingly.

However, note that using the shortcut keys to fix the out-of-sync audio in VLC Player is just a temporary method. It only fixes the audio problem of the current video playback in VLC.

※ Set Track Synchronization Value

Step 1: Open the problematic video in VLC, and go to the "Tools" > "Effect and Filters" tab.

Step 2: Click on the "Synchronization" tab

Step 3: Under the "Audio/Video" section, enter a value. (A positive value will delay the audio while a negative value will hasten the audio in the video.)

Step 4: Press "Close" to save your change.

This way can also help you fix the audio-video sync in VLC Player. However, you need to reset the value when you import another video that is audio out-of-synced.

※ Set Audio Desynchronization Compensation (Permanent Fix)

Step 1. Run VLC Media Player.

Step 2. Hit the "Tools" button on the toolbar and select "Preferences".

Step 3. Click on the "Audio" tab, then mark "All" in the lower-left corner to extend all options.

Step 4. Press "Audio", and enter a value in milliseconds which can be either positive or negative, e.g. "1000" or "-1000" in the "Audio desynchronisation compensation" box to make VLC adjust audio sync accurately.

Step 5. Finally press the "Save" button. Now you can reopen the video that has the lip-sync issue. If the issue still exists, repeat the steps above until you make the audio and video match up perfectly.

This method can permanently fix the audio-video sync in VLC. Unlike setting the Audio track synchronization value again and again, you can set the Audio desynchronization compensation value just once.

※ Fix Audio Delay Issue in VLC on Android

Encountering the audio out-of-sync issue in VLC on your Android devices? You can also fix it by adjusting the audio speed according to your needs.

Steps to sync audio in VLC on Android:

Step 1. Open a video in VLC Media Player on your Android device.

Step 2. Click on the second icon at the bottom of the interface.

Step 3. Select "Audio Delay" from the options.

Step 4. Click on the "+" or "–" button to control the audio speed in your video.

(The + button will delay the sound by 50 milliseconds, whereas the – button will hasten the sound.)

However, the setting in the video is also temporary and will be removed when you close the video. You need to reset the audio delay when you play it the next time.

You may wonder how to sync audio and video in VLC and save the video to your computer, but you would be disappointed. You can only fix the VLC audio not sync with video issues from the beginning to end. However, some video/audio files work well in the beginning but come to time axis damage halfway. Moreover, the VLC audio delay solution only works when we play the video on VLC media player. But we always want to play a movie or video on other devices that may not support VLC media player. So here comes the once-and-for-all alternative solution to fix audio sync VLC – WonderFox HD Video Converter Factory Pro. The program can intelligently detect any out-of-sync audio and make the audio and video match up for good. Free download it on your PC and see how it goes.

It’s the most recommended and permanent solution to fix video and audio out of sync issues. In addition, it offers over 500 output formats and devices so that you can convert video/audio files to be compatible with any media player. It also lets you download music online, record screens without lag, and edit videos as you wish. Download it to get your issues solved without any effort!

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