This file is indexed.

/usr/lib/x86_64-linux-gnu/librtaudio.so is in librtaudio-dev 4.1.1~ds0-4.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/x86_64-linux-gnu/librtaudio.so.4v5.1.1b