How to fix out-of-sync audio on YouTube and Netflix
When the voices do not match the lips, even a great video is hard to watch. The cause is usually a small audio/video offset in the stream or your output device. VidBar lets you slide the audio a few milliseconds in either direction until it locks back into sync.
- 1Step 1
Install VidBar
Audio delay / sync works on YouTube, Netflix, Prime Video, and most HTML5 video. Add VidBar from the Chrome Web Store.
- 2Step 2
Play the out-of-sync video
A scene with clear, close-up dialogue makes the offset easiest to judge.
- 3Step 3
Open the audio panel
In the VidBar toolbar, open the audio controls next to the volume and equalizer.
- 4Step 4
Find the audio delay slider
Move it in small steps: positive values push the audio later, negative values pull it earlier.
- 5Step 5
Tune until lips and voice match
Watch a talking shot and nudge by about ±20–40 ms at a time until the dialogue snaps into sync.
- 6Step 6
Save it per site
Pin the offset so the same correction applies automatically the next time you visit that site.
Frequently asked questions
Why does audio drift in the first place?
It can come from the stream itself, Bluetooth latency, or your audio device. A fixed offset corrects the steady cases.
Does Bluetooth latency change the amount?
Yes — wireless headphones add their own delay, so you may need a larger offset than with wired output.
Try VidBar on a live video
Open the interactive demo to test karaoke, speed, filters, audio tools, and export before installing.
Related
More video guides
How to enable spatial audio for video on headphones
Add a wider, more immersive 3D soundstage to YouTube and Netflix on any headphones with VidBar’s spatial audio.
How to boost video audio and use EQ in Chrome
Boost quiet video audio and apply EQ presets in Chrome without extra hardware. A guide to the best audio enhancement extensions in 2026.
How to boost volume on YouTube beyond 100%
Boost YouTube volume above 100% safely without harsh clipping using a Chrome extension and the right gain settings.
How to save and reuse custom video presets across sites
Save your speed, volume, EQ, captions, and filter settings as named presets and apply them per site automatically with VidBar.