libcanberra is an implementation of the XDG Sound Theme and Name
Specifications, for generating event sounds on free desktops, such as
GNOME. It comes with several backends (ALSA, PulseAudio, null) and is
designed to be portable. It consists of the following parts:

1. 1. libcanberra: the main library

2. 2. libcanberra-gtk: some glue code to make it easier to use
libcanberra from Gtk+ applications

3. 3. libcanberra-gtk-module: a Gtk+ module that uses libcanberra-gtk to
trigger input feedback event sounds