onsidered as a sequence of sounds over time, audio energizes a room with a complex jumble of fundamental tones and thousands of harmonics, augmented by room reflections and longer-term reverberation. This sounds like a recipe for aural confusion, but we learn instinctively from earliest childhood to distinguish direct sound from a source, person, or loudspeaker from the reverberant field. Without that skill, stereo perception in rooms would be
