I modified the PulseAudio config to remove popping but my /var/log/messages file is being flooded with:
Jan 8 10:14:29 antelope pulseaudio: module-alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Most likely this is an ALSA driver bug. Please report this issue to the PulseAudio developers.
About a dozen entries or so a second. Can I disable ALSA's logging? Or is that hard coded in the source?