/usr/lib/x86_64-linux-gnu/libcanberra-gtk.so.0 is in libcanberra-gtk0 0.28-3ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcanberra-gtk.so.0.1.8
/usr/lib/x86_64-linux-gnu/libcanberra-gtk.so.0.1.8