Hi, and Welcome to LQ.
streaming plugins?
What program are you using to listen?
gnome uses gstreamer plugins, see here for some pertinant info...article about pulseaudio in 2008.1
http://www.linux.com/feature/119926
quote...consider the KDE sound library aRts. It includes a sound server -- the low-level daemon that accepts audio from apps and feeds it to the hardware driver -- and higher-level functions like encoding and decoding various file and stream formats. Things are a little cleaner on the GNOME side. The Enlightened Sound Daemon (ESD) is the sound server, and a separate library (GStreamer) handles the codecs.