Pulseaudio... again. How to restart it?

[Fernando Apesteguía]

Hi,

I'm having some issues with Pulseaudio (well, I have sound only half
of the times I boot my system...)

These are the synthoms:

mplayer file1.avi

....
AO: [pulse] Init failed: Connection refused
Could not open/initialize audio device -> no sound.
Audio: no sound
....

I tried with

$ pulseaudio -k
E: main.c: Failed to kill daemon.

I can't find the pulseaudio process. What's its name? Can I kill it if
it doesn't kill itself?

Thanks in advance.