apt-cache rdepends pulseaudio
pulseaudio
Reverse Depends:
  unity-settings-daemon
  pulseaudio-module-bluetooth:i386
  pulseaudio-esound-compat:i386
  pulseaudio:i386
  ubuntu-touch
  ubuntu-gnome-desktop
  kubuntu-full
  kubuntu-desktop
  kubuntu-active
 |kde-telepathy-call-ui
  unity-settings-daemon
  pulseaudio-module-zeroconf
  pulseaudio-module-x11
  pulseaudio-module-raop
  pulseaudio-module-lirc
  pulseaudio-module-jack
  pulseaudio-module-gconf
  pulseaudio-module-bluetooth
  pulseaudio-module-bluetooth
  pulseaudio-esound-compat
  pulseaudio-esound-compat
  pulseaudio-dbg
  libpulse0
  gnome-settings-daemon
  pulseaudio-module-bluetooth:i386
  pulseaudio-esound-compat:i386
  pulseaudio:i386
  xpra
  xfce4-volumed
  veromix-common
  ubuntustudio-desktop
  ubuntu-touch
  ubuntu-gnome-desktop
  scratch
  python-x2go
  projectm-pulseaudio
  pavucontrol
  osspd-pulseaudio
  mpg123
  mpd
  morse
  minimodem
  lives
  lightspark-common
  libqtmultimediakit1
  kubuntu-full
  kubuntu-desktop
  kubuntu-active
 |kde-telepathy-call-ui
  initramfs-tools-tcos
  indicator-sound-gtk2
  gnome-media
  gnome-core
  unity-settings-daemon
  ubuntu-desktop
  speech-dispatcher
  pulseaudio-module-zeroconf
  pulseaudio-module-x11
  pulseaudio-module-raop
  pulseaudio-module-lirc
  pulseaudio-module-jack
  pulseaudio-module-gconf
  pulseaudio-module-bluetooth
  pulseaudio-module-bluetooth
  pulseaudio-esound-compat
  pulseaudio-esound-compat
  pulseaudio-dbg
  ltsp-server
  ltsp-client-core
  ltsp-client
  libpulse0
  libcanberra-pulse
  indicator-sound
  gnome-settings-daemon