Code:
$ dpkg -l | grep pulse
ii  gstreamer0.10-pulseaudio:i386                0.10.31-3+nmu4+b2                    i386         GStreamer plugin for PulseAudio
ii  gstreamer1.0-pulseaudio:i386                 1.8.3-1+b1                           i386         GStreamer plugin for PulseAudio
ii  libpulse-mainloop-glib0:i386                 9.0-3                                i386         PulseAudio client libraries (glib support)
ii  libpulse0:i386                               9.0-3                                i386         PulseAudio client libraries
ii  libsox-fmt-pulse:i386                        14.4.1-5+b1                          i386         SoX PulseAudio format I/O library
~
http://www.knoppixforum.de/knoppix-forum-deutsch/sonstiges/thread4268/pulseaudio-verwenden-aber-wie.html


suggests to start the pulseaudio demon a la: /etc/init.d/pulseaudio start


However:


$ which pulseaudio
$ 
$ ls -l /etc/init.d/pulseaudio
ls: cannot access '/etc/init.d/pulseaudio': No such file or directory


$ sudo /etc/init.d/pulseaudio start
sudo: /etc/init.d/pulseaudio: command not found


$ ps aux | grep pulseaudio
knoppix   4871  0.0  0.0   6352   832 pts/4    S+   06:53   0:00 grep --colour=auto pulseaudio


How can you start pulseaudio (or (re)install it?) if needed?