A property of sound that varies with variation in the frequency of vibration. It is also the ability to identify any pitch heard or produce any pitch referred to by name, which is referred to as perfect pitch. Thus, the term is used for both a stimulus parameter (i.e., synonymous with frequency), and as an attribute of auditory sensation. Thus, pitch, despite being treated sometimes as being all but synonymous with F₀, is a subjective perceptually-based experience for the listener. In the processing of speech, the term is mostly used in the former sense to mean the fundamental frequency (oscillation frequency) of the glottal oscillation (vibration of the vocal folds). In psychoacoustics, it is used in the latter sense (i.e., to mean a subjective auditory attribute in which sounds can be ordered on a scale from low to high).
See Axillary hair, Cochlea, Contour, Frequency, Fundamental frequency (F₀), Intensity, Larynx, Vocal folds, Vocalic resonance