How to remove gaps in video?

Question

YouTube

Please tell me a browser extension that removes voids in the video.
It's just annoying when you watch a video, the author is trying to explain something, and he has a pause between words of 2-3 seconds, or even more (God forbid).
I heard about such an extension, but I lost its name, now I can't find it.

Answer 1

I haven’t seen such an extension for the browser and I’m not sure that someone needs
something like ffmpeg in terms of video processing, you can write a simple script that will find silence on the video with the first pass (if there is music in the background, you will have to search for speech at least by Fourier decomposition of the sound disassemble) and the second pass will cut it into pieces and put it back together, I
advise you to turn on 2x the playback speed (or select the speed according to the situation) - helps
ps

sorry couldn't resist

https://www.youtube.com/watch?v=PUAvDIiR8i4