Amarok No Sound

Environment
  • Ubuntu 9.04 x64
  • Amarok version 2
Intorduction
Playing music is no sound, however, tried Rhythmobx is ok

Solution
It is caused by license restriction, just install the restricted extras package, so the sound could be back
$sudo apt-get install ubuntu-restricted-extras
Reference
  • https://help.ubuntu.com/community/RestrictedFormats