To enable them you can just add a line load-module module-name-from-list to ~/.config/pulse/default.pa. You can find a detailed list of all available modules at Pulseaudio Loadable Modules. The output module does not have to be an actual sound output: it can dump the stream into a file, stream it to a broadcasting server such as Icecast, or even just discard it. Clients reach the server through one of many protocol modules that will accept audio from external sources, route it through PulseAudio and eventually have it go out through a final other module.
The audio routing and processing tasks are all handled by various modules, including PulseAudio's native protocol itself (provided by module-native-protocol-unix). The daemon by itself does nothing without its modules except to provide an API and host dynamically loaded modules.
PulseAudio runs as a server daemon that can run either system-wide or on per-user basis using a client/server architecture. While PulseAudio usually runs fine out of the box and requires only minimal configuration, advanced users can change almost every aspect of the daemon by either altering the default configuration file to disable modules or writing your own from scratch. The daemon should work mostly out of the box, only requiring a few minor tweaks. It takes control of all detected ALSA devices and redirects all audio streams to itself, making the PulseAudio daemon the central configuration point.
pa-notify - PulseAudio or PipeWire volume notification daemon.īy default, PulseAudio is configured to automatically detect all sound cards and manage them. Xfce PulseAudio Panel Plugin - PulseAudio plugin for Xfce4 panel. Volctl - Per-application system tray applet volume control for PulseAudio. PulseEffects - Audio effects for PulseAudio applications. PulseAudio Volume Meter - Simple GTK volume meter for PulseAudio. PulseAudio Volume Control (Sandsmark) - Lightweight fork of the LXQt's pavucontrol, with missing features from pavucontrol implemented, bug fixes and unnecessary dependencies removed. PulseAudio Volume Control (Qt) - Mixer for PulseAudio (Qt port of pavucontrol). PulseAudio Volume Control - Simple GTK volume control tool ("mixer") for PulseAudio. PulseAudio Preferences - Simple GTK configuration dialog for PulseAudio. PulseAudio Manager - Simple GTK frontend for PulseAudio. PulseAudio Graph Control - Electron-based volume and graph control for PulseAudio. PulseAudio Equalizer - LADSPA based multiband equalizer for PulseAudio. plasma-pa - KDE Plasma applet for audio volume management using PulseAudio. pasystray - System tray applet for PulseAudio. pa-applet - System tray applet for PulseAudio with volume bar. MicTray - Lightweight system tray application which lets you control the microphone state and volume using PulseAudio. KMix - KDE volume control application supporting several platforms including PulseAudio, system tray applet configurable. pulsemixer - CLI and curses mixer for PulseAudio. pulseaudio-ctl - Control PulseAudio volume from the shell or mapped to keyboard shortcuts. Ponymix - Command line mixer for PulseAudio. pavolume - Simple command-line volume control for PulseAudio with libnotify messages. pamixer - PulseAudio command line mixer. PAmix - Ncurses PulseAudio mixer similar to pavucontrol. pacmixer - Alsamixer alike for PulseAudio. ncpamixer - Ncurses mixer for PulseAudio inspired by pavucontrol. There are a number of front-ends available for controlling the PulseAudio daemon: pulseaudio-zeroconf for Zeroconf ( Avahi/DNS-SD) support. pulseaudio-lirc for infrared volume control with LIRC. pulseaudio-jack for JACK sink, source and jackdbus detection. pulseaudio-equalizer for equalizer sink (qpaeq). EQUALIZER AUDIO SOURCE BLUETOOTH
pulseaudio-bluetooth for bluetooth support (Bluez), see bluetooth headset page. pulseaudio-alsa for PulseAudio to manage ALSA as well, see #ALSA. Some PulseAudio modules are not included in the main package and must be installed separately if needed: PulseAudio builds only on the kernel component, but offers compatibility with libasound through pulseaudio-alsa. ALSA includes a Linux kernel component with sound card drivers, as well as a userspace component, libasound. 
Note: Some confusion may occur between ALSA and PulseAudio.
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