pavucontrol-qt is the Qt port of the volume control pavucontrol for the sound server PulseAudio.

As such it can be used to adjust all controls provided by PulseAudio (and ALSA, on Linux) as well as some additional settings.

The software belongs to the LXQt project but its usage isn't limited to this desktop environment.

Runtime dependencies are qtbase (Qt5) and PulseAudio client library libpulse.
Additional build dependencies are CMake as well as optionally Git to pull latest VCS checkouts. On Mac, KDE's Extra-CMake-Modules and the ksvg2icns utility from KIconThemes are used to generate an application icon when they're installed. Alternatively a pre-generated icon is used.

Code configuration is handled by CMake. CMake variable CMAKE_INSTALL_PREFIX has to be set to /usr on most operating systems.

To build run make, to install make install which accepts variable DESTDIR as usual. Other CMake generators can also be used, of course.

Official binary packages are available in Arch Linux, Debian, Fedora and openSUSE (Leap and Tumbleweed) and most other distributions.

In LXQt sessions the binary is placed in sub-menu "Sound & Video" of the panel's main menu.

The usage itself should be self-explanatory.

Translations can be done in LXQt-Weblate.