Related Directory Categories
- Pitched (193)
- Change Ringing (151)
- Organizations (90)
- Towers (58)
- Regional (54)
- United Kingdom (49)
- Tune Ringing (39)
- Pitch Black Series (36)
- Regional (30)
- Composition (24)
Sources
Help build the largest human-edited directory on the web.
Submit a site - Become an editor
Wikipedia. Licensed under the GNU Free Documentation License.
Are you an expert in this subject? Join the discussion and share your knowledge at Wikipedia.org.
Pitch (psychophysics)
From Wikipedia, the free encyclopedia
 |
It has been suggested that this article or section be merged into pitch (music). (Discuss) |
Pitch is the property of a sound that allows the construction of melodies; pitches are compared as "higher" and "lower", and are quantified as frequencies (cycles per second, or hertz), corresponding very nearly to the repetition rate of sound waves.
Pitch is not an objective physical property, but a subjective psychophysical attribute of sound.[1]
The perceived pitch of a sine wave is directly related to its frequency. More complex sounds also have pitch, notably speech and musical notes. Many such sounds are approximately periodic, and the perceived pitch is directly related to the period. They also have a spectrum that is (approximately) a stack of harmonics, and the perceived pitch is related to the harmonic spacing. The lowest harmonic in the stack is called the fundamental frequency, and its frequency is also strongly correlated with the pitch, though a strong pitch may be perceived even when the fundamental is missing.
Historically, the study of pitch perception, and especially of pitch in the case of the missing fundamental, has been a central problem in in psychoacoustics, and has been very instrumental in forming and testing theories of sound representation, processing, and perception in the auditory system.[2]
Some theories of pitch perception hold that pitch has inherent octave ambiguities, and therefore is best decomposed into a pitch chroma, a periodic value around the octave, like the note names in western music, and a pitch height, which may be ambiguous, indicating which octave the pitch may be in.[2]
- ^ Christopher J. Plack, Andrew J. Oxenham, and Richard R. Fay, eds. (2005). Pitch: Neural Coding and Perception. Springer. ISBN 0387234721.
- ^ a b William Morris Hartmann (1997). Signals, Sound, and Sensation. Springer. ISBN 1563962837.
 This psychology-related article is a stub. You can help Wikipedia by expanding it. |