Here is the tutorial for how to convert from/to ogg,mp3,flac,aac file formats.
First install the programmes zenity,ffmpeg
sudo apt-get install zenity ffmpeg
Then download the script called easyconverter.sh
wget http://raymii.org/cms/content/downloads/easyconverter.sh
sudo chmod +x easyconverter.sh
./easyconverter.sh
Press 'ok' the programme is starting to convert the files
Select type of files to be converted then press ok and select the folder, contaings mp3 songs
Press ok
Then select type of output file and press ok
Select quality of songs from the following screen
Press ok
Press Lets Rock Baby button
After conversion
For opening the folder press yes,open it
Free formats are ready to play
First install the programmes zenity,ffmpeg
sudo apt-get install zenity ffmpeg
Then download the script called easyconverter.sh
wget http://raymii.org/cms/content/downloads/easyconverter.sh
sudo chmod +x easyconverter.sh
./easyconverter.sh
Press 'ok' the programme is starting to convert the files
Select type of files to be converted then press ok and select the folder, contaings mp3 songs
Press ok
Then select type of output file and press ok
Select quality of songs from the following screen
Press ok
Press Lets Rock Baby button
After conversion
For opening the folder press yes,open it
Free formats are ready to play