Video Sync for Chrome, Edge and Firefox
PC Nest Speaker already keeps the delay to your speaker down to about 200–300ms. This add-on closes the last of it on web video, so lips and sound land together.
Needs PC Nest Speaker 2.2.0
The add-on works with the next app update, version 2.2.0, which is on its way. With the current version it will install but do nothing, so hold off until the update is out.
What it does
Sending sound across Wi-Fi always costs a moment. The picture on your screen does not wait, so on video the mouth moves a fraction before you hear it.
This add-on asks PC Nest Speaker how far behind your speaker is, then holds the picture back by exactly that much. Nothing is sent anywhere. It reads one number from the app on your own computer.
Before you start
- PC Nest Speaker 2.2.0 or later, running and streaming to a speaker. The add-on does nothing on its own.
- Chrome or Edge 111 and up, or Firefox 132 and up.
Chrome and Edge
Download for Chrome and Edge- Unzip the file somewhere you will keep it, such as Documents.
- Open chrome://extensions in Chrome, or edge://extensions in Edge.
- Turn on Developer mode, top right.
- Click Load unpacked and pick the folder you unzipped.
- Play a video. The icon shows on when the picture is being held back.
Firefox
Download for FirefoxWorth knowing: Firefox only keeps add-ons that have been through its own review. Until ours clears that, Firefox will drop it when you close the browser, so you would add it again each time. If that sounds like a nuisance, use Chrome or Edge for now, or wait for the listed version.
- Unzip the file.
- Open about:debugging, then This Firefox.
- Click Load Temporary Add-on and pick the manifest.json inside the folder.
Where it will not help
Netflix, Disney+ and Prime Video. These services lock their picture so no add-on can touch it. Ours notices and steps aside rather than leaving you with a black box.
Anything outside your browser. Games, desktop apps and video calls are beyond the reach of any add-on. That is why the app keeps the sound itself fast, rather than relying on a picture trick.