/usr/lib/x86_64-linux-gnu/libpulse.so is in libpulse-dev 1:4.0-0ubuntu11.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libpulse.so.0.16.2
/usr/lib/x86_64-linux-gnu/libpulse.so.0.16.2