Psychoacoustics

Psychoacoustics is the science of how humans perceive sound. It explores how our brain interprets audio stimuli based on physical properties (frequency, amplitude, phase) as well as cognitive and emotional factors. In music production, psychoacoustics helps explain phenomena such as :
Frequency masking, Spatial localization, Perception of stereo, loudness, clarity, Effects like auditory illusions, phantom center, and perceived width