Freedom
Fedora 11 ships with support for Ogg Vorbis, Theora, FLAC, and Speex, giving you the freedom to watch or listen to your media in a free format. Not only are they all open source but no codec that ships with Fedora contains any harmful patents or licensing fees.
MP3 and Flash
Because of patent issues Fedora can not ship with an MP3 decoder, however if you are unable to convert to a patent free codec, such as Ogg Vorbis, Fluendo offers an MP3 decoder that follows all legal requirements set by the patent holder. Visit Fluendo's website (http://www.fluendo.com/) for more information.
Abode's Flash player is proprietary software and Fedora recommends installing either 
swfdec
Volume Control
An updated volume control manager application provides you with more control over your audio preferences. Better integrated with PulseAudio, you can now control individual application inputs and outputs along with the sources and destinations for the audio.
With the removal of alsamixer -c0 from a shell prompt. To access the recording channels rather than the playback channels (for instance, to select which input you wish to record from) run alsamixer -c0 -Vcapture. The alsamixer program has a curses text-based user interface to adjust sound levels for ALSA devices. Once alsamixer is running, get help by typing a question mark.
If you encounter the volume problem, please file a bug to help us fix your sound card drivers or PulseAudio. Once the appropriate code is fixed, the simple volume control application will properly adjust your volume in the future. Visit the blocker bug at [https://bugzilla.redhat.com/show_bug.cgi?id=497966#c1 ] and read the instructions, then file a new bug using the pre-filled template at http://tinyurl.com/c9syun. Remember to add details as requested in the blocker bug.
GNOME
KDE
For more information refer to Multimedia.