From: "Ivan K" <ivan_521521(a)yahoo.com>
I am able to download .webm files from YouTube with the
youtube-dl utility.
Now, I would like to be able to take just the
audio track of such a file and write it to a .ogg or .mp3
file. Can someone coach me how to do this?
ffmpeg -i input.flv -acodec libvorbis -ab 128k -vn output.ogg