libpulse-browse0 1:0.9.20-0ubuntu1 (amd64 binary) in ubuntu lucid

 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.
 .
 Client libraries used by applications that access a PulseAudio sound server
 via PulseAudio's native interface.
 .
 This package adds support for zeroconf (aka. Avahi, mdns) discovery of
 PulseAudio sinks and sources by client applications.