/usr/lib/x86_64-linux-gnu/libaudiofile.so.1 is in libaudiofile1 0.3.6-2ubuntu0.15.10.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libaudiofile.so.1.0.0
/usr/lib/x86_64-linux-gnu/libaudiofile.so.1.0.0