/usr/ is in libaudiofile-dev 0.3.3-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/af_vfs.h
/usr/include/audiofile.h
/usr/include/aupvlist.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/audiofile.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libaudiofile-dev/
/usr/share/doc/libaudiofile-dev/afCloseFile.3
/usr/share/doc/libaudiofile-dev/afCloseFile.3.txt
/usr/share/doc/libaudiofile-dev/afGetDataOffset.3
/usr/share/doc/libaudiofile-dev/afGetFrameCount.3
/usr/share/doc/libaudiofile-dev/afGetFrameCount.3.txt
/usr/share/doc/libaudiofile-dev/afGetFrameSize.3
/usr/share/doc/libaudiofile-dev/afGetFrameSize.3.txt
/usr/share/doc/libaudiofile-dev/afGetTrackBytes.3
/usr/share/doc/libaudiofile-dev/afNewFileSetup.3
/usr/share/doc/libaudiofile-dev/afNewFileSetup.3.txt
/usr/share/doc/libaudiofile-dev/afOpenFile.3
/usr/share/doc/libaudiofile-dev/afOpenFile.3.txt
/usr/share/doc/libaudiofile-dev/afQuery.3.txt
/usr/share/doc/libaudiofile-dev/afQueryDouble.3
/usr/share/doc/libaudiofile-dev/afQueryLong.3
/usr/share/doc/libaudiofile-dev/afQueryPointer.3
/usr/share/doc/libaudiofile-dev/afReadFrames.3
/usr/share/doc/libaudiofile-dev/afReadFrames.3.txt
/usr/share/doc/libaudiofile-dev/afReadMisc.3
/usr/share/doc/libaudiofile-dev/afReadMisc.3.txt
/usr/share/doc/libaudiofile-dev/ACKNOWLEDGEMENTS
/usr/share/doc/libaudiofile-dev/afSeekFrame.3
/usr/share/doc/libaudiofile-dev/afSeekFrame.3.txt
/usr/share/doc/libaudiofile-dev/afSeekMisc.3
/usr/share/doc/libaudiofile-dev/afSetErrorHandler.3
/usr/share/doc/libaudiofile-dev/afSetErrorHandler.3.txt
/usr/share/doc/libaudiofile-dev/afSetVirtualByteOrder.3
/usr/share/doc/libaudiofile-dev/afSetVirtualChannels.3
/usr/share/doc/libaudiofile-dev/afSetVirtualPCMMapping.3
/usr/share/doc/libaudiofile-dev/afSetVirtualSampleFormat.3
/usr/share/doc/libaudiofile-dev/afSetVirtualSampleFormat.3.txt
/usr/share/doc/libaudiofile-dev/afTellFrame.3
/usr/share/doc/libaudiofile-dev/afWriteFrames.3
/usr/share/doc/libaudiofile-dev/afWriteFrames.3.txt
/usr/share/doc/libaudiofile-dev/afWriteMisc.3
/usr/share/doc/libaudiofile-dev/copyright
/usr/share/doc/libaudiofile-dev/afQuery.3.gz
/usr/lib/x86_64-linux-gnu/libaudiofile.so
/usr/share/doc/libaudiofile-dev/AUTHORS
/usr/share/doc/libaudiofile-dev/NOTES
/usr/share/doc/libaudiofile-dev/README
/usr/share/doc/libaudiofile-dev/NEWS.gz
/usr/share/doc/libaudiofile-dev/changelog.Debian.gz