You can fast forward a youtube video in 2x speed on the desktop by holding either the spacebar or the left mouse button. To achieve the same on the mobile, hold anywhere on the video.
See also: https://support.google.com/youtube/answer/7631406?hl=en-GB
https://www.youtube.com/watch?v=DuB8VUICGqc // will occasionally show ads https://www.youtube.com./watch?v=DuB8VUICGqc // will not show ads
youtube-dl -f bestaudio "url" -o "%(title)s.%(ext)s"
Ref:- https://askubuntu.com/questions/423508/can-i-directly-download-audio-using-youtube-dl
Edit the audio (if necessary) For example, to copy the first 40 seconds of src.webm to dest.webm
ffmpeg -ss 00:00:00 -i src.webm -to 00:00:40 -c copy dest.webm
dailymotion was acquired by Vivendi (huge media conglomerate, owner of Universal Music Group) in 2016
When playing a youtube video in a browser, you can type 0 through 9 to jump to 0% to 90% through the video.
You can create multiple youtube channels with one google account. Go to https://www.youtube.com/channel_switcher and click on “+ Create a new channel” button.