/usr/lib/x86_64-linux-gnu/ is in libroar-compat2 1.0~beta11-10.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/libroaross.so.2
/usr/lib/x86_64-linux-gnu/libroarpulse-simple.so.2
/usr/lib/x86_64-linux-gnu/libroarpulse.so.2
/usr/lib/x86_64-linux-gnu/libroarsndio.so.2
/usr/lib/x86_64-linux-gnu/roaraudio/
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/artscat
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/artsd
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/artsdsp
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/artsplay
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/audial
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/audiooss
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/auplay
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/dtmfdial
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/esd
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/esdcat
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/esddsp
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/esdfilt
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/esdmon
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/esdplay
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/pacat
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/padsp
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/paplay
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/ross
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/rsd
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/rsdplay
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/yiff
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/yplay
/usr/lib/x86_64-linux-gnu/roaraudio/compbins/yshutdown
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/liboss.so
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libossaudio.so
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so.0
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so.0.0
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so.0.0.0
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so.0.0.1
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so.0.0.2
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse-simple.so.0.0.3
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so.0
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so.0.1
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so.0.1.0
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so.0.12.2
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so.0.4
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libpulse.so.0.4.1
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libsndio.so
/usr/lib/x86_64-linux-gnu/roaraudio/complibs/libsndio.so.0