Stimuli and Procedures * Hearing Area * Information Processing in the Auditory System * Masking * Pitch and Pitch Strength * Critical Bands and Excitation * Just-Noticeable Sound Changes * Loudness * Sharpness and Sensory Pleasantness * Fluctuation Strength * Roughness * Subjective Duration * Rhythm * The Ear's Own Nonlinear Distortion * Binaural Hearing * Examples of Application.