libpulse0 1:0.9.18-0ubuntu2 (i386 binary) in ubuntu karmic

 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.