pulseaudio-module-raop 1:2.1-0ubuntu4 (amd64 binary) in ubuntu quantal

 PulseAudio, previously known as Polypaudio, is a sound server for POSIX and
 WIN32 systems. It is a drop in replacement for the ESD sound server with
 much better latency, mixing/re-sampling quality and overall architecture.
 .
 This module enables PulseAudio to stream audio to an Apple Airport Express.