/usr/lib/x86_64-linux-gnu/libcodec2.so is in libcodec2-dev 0.5.1-1+b2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcodec2.so.0.4
/usr/lib/x86_64-linux-gnu/libcodec2.so.0.4