Enable sound for 3gp videos in ubuntu using mplayer 4

To play 3gp videos with audio using mplayer in Ubuntu Jaunty, add the following line to your /etc/apt/sources.list file sudo wget http://www.medibuntu.org/sources.list.d/jaunty.list --output-document=/etc/apt/sources.list.d/medibuntu.list You need the GPG key for medibuntu packages. Get it the following way. sudo apt-get update sudo apt-get install medibuntu-keyring sudo apt-get update now install the following packages w32codecs mplayer mencoder amrnb ...