/usr/lib/x86_64-linux-gnu/libopencore-amrwb.so is in libopencore-amrwb-dev 0.1.3-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libopencore-amrwb.so.0.0.3
/usr/lib/x86_64-linux-gnu/libopencore-amrwb.so.0.0.3