/usr/src/castle-game-engine-5.2.0/audio/ is in castle-game-engine-src 5.2.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/src/castle-game-engine-5.2.0/audio/castlealutils.pas
/usr/src/castle-game-engine-5.2.0/audio/castleefx.pas
/usr/src/castle-game-engine-5.2.0/audio/castleogg.pas
/usr/src/castle-game-engine-5.2.0/audio/castleopenal.pas
/usr/src/castle-game-engine-5.2.0/audio/castlesoundallocator.pas
/usr/src/castle-game-engine-5.2.0/audio/castlesoundengine.pas
/usr/src/castle-game-engine-5.2.0/audio/castlesoundfile.pas
/usr/src/castle-game-engine-5.2.0/audio/castlevorbiscodec.pas
/usr/src/castle-game-engine-5.2.0/audio/castlevorbisdecoder.pas
/usr/src/castle-game-engine-5.2.0/audio/castlevorbisfile.pas
/usr/src/castle-game-engine-5.2.0/audio/efx-creative.inc
/usr/src/castle-game-engine-5.2.0/audio/efx.inc
/usr/src/castle-game-engine-5.2.0/audio/openal_al.inc
/usr/src/castle-game-engine-5.2.0/audio/openal_alc.inc
/usr/src/castle-game-engine-5.2.0/audio/openal_alctypes.inc
/usr/src/castle-game-engine-5.2.0/audio/openal_altypes.inc
/usr/src/castle-game-engine-5.2.0/audio/openal_alut.inc
/usr/src/castle-game-engine-5.2.0/audio/vorbisfile_conf.inc