/usr/lib/x86_64-linux-gnu/libkwave.so.0 is in kwave 0.9.2-1-2+b2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libkwave.so.0.9.2
/usr/lib/x86_64-linux-gnu/libkwave.so.0.9.2