#YTconv By: marduk191
in your terminal to launch the yad interface.
2.Select a folder where flv files are stored.
3.Set Constant or Variable bitrate.
4.Set your bitrate.
VBR uses "quality" instead of a set bitrate. Lower number is better.
5.Click the box marked "Convert".
It will convert all of the flv files in that folder to mp3.