how to convert video files in .flv format into MP3 format for listening only

http://art.ubuntuforums.org/showthread.php?t=1101022

thank you for the reply.
but where and how to write those commands?
would the original video remain unaffected?
isn't there any programme that would make the job when it would be asked to[like the 'download helper']?

Yes the file you make is untouhed as it is only being read. The commands are to be ran in the terminal. Just change the filenames used to your actual file you want to read, and the output filename you desire.

Hello koushik,

You can do it by Sound Converter, install it by the following command:
sudo apt-get install soundconverter

You could even be double clever and run:

gksudo gedit /usr/bin/ripmp3; sudo chmod +x /usr/bin/ripmp3

and paste this code:

#!/bin/bash
mplayer -dumpaudio "$1" -dumpfile ~/Desktop/result.mp3

Save the file and close gedit

You can now run:

ripmp3 inputfilename.flv

And the MP3 will be output on the desktop.

Simples

A well formed script will be far easier, especially due to the nature of the forum (text)

Thank you Mr. Jong,
By application of Sound Converter I've been able to convert one video file in .flv to MP3 format. Thank you once again.
Koushik