Maintainers for libcanberra are Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>.
You may want to refer to the following individual bug pages: gnome-session-canberra, libcanberra-dev, libcanberra-doc, libcanberra-gstreamer, libcanberra-gtk-common-dev, libcanberra-gtk-dev, libcanberra-gtk-module, libcanberra-gtk0, libcanberra-gtk3-0, libcanberra-gtk3-dev, libcanberra-gtk3-module, libcanberra-pulse, libcanberra0.
You might like to refer to the libcanberra package page, or to the Package Tracking System.
If you find a bug not listed here, please report it.