flv to mp3 convert

#!/bin/bash
MP4FILE=$(ls ~/Desktop/music |grep .flv)
for filename in $MP4FILE
do
 name=`echo "$filename" | sed -e "s/.flv$//g"`
 ffmpeg -i ~/Desktop/music/$filename -b:a 256K -vn ~/Desktop/Muzikler/$name.mp3
done

//Thanks Onur Aslan
find ~/Desktop/music -maxdepth 1 -name '*.flv' -exec ffmpeg -i {} -b:a 256K -vn {}.mp3 \;