For some reasons is it a good thing to chose for a single pulseaudio daemon instead of one per logged in user.

An example, when you play music and onother person logs in on his own account, the music stops. When you run pulseaudio systemwide the music keeps playing while another person can do his work on his own account.

This is how you do it:

- add to every user on the system the groups 'pulse' and 'pulse-access'

- edit etc/pulse/deamon.conf

  change 'deamonize = no' to 'deamonize = yes'

  change 'system-instance = no' to 'system-instance= yes'

- edit etc/default/pulseaudio

  change 'PULSEAUDIO_SYSTEM_START=0'  to 'PULSEAUDIO_SYSTEM_START=1'

- delete .pulse in your home directory and do the same fore other users

- reboot the system