Subharmonic

Subharmonic

Subharmonic frequencies are frequencies below the fundamental frequency of an oscillator in a ratio of 1/x. For example, if the fundamental frequency of an oscillator is 440 Hz, sub-harmonics include 220 Hz (1/2) and 110 Hz (1/4).

Subharmonics can be produced by signal amplification through loudspeakers.cite book
author =Barry Truax, ed
year = 1999
title = [http://www.sfu.ca/sonic-studio/handbook/Subharmonic.html Handbook for Acoustic Ecology]
publisher = World Soundscape Project, Simon Fraser University
]

Violinist and composer Mari Kimura is purported to be able to produce subharmonic notes on the violin. [cite web | url=http://homepage.mac.com/marikimura/MAIN/NYTimes1994.html | publisher=New York Times | title=A Violinist Tests Limits In Music Of Her Time | author=Edward Rothstein | date=April 21, 1994 | accessdate=2008-09-15 ]

ee also

*Harmonic
*Harmonic series (music)
*Overtone
*Subharmonic mixer
*Subharmonic synthesizer

External links

* [http://www.marikimura.com/ Website of Mari Kimura with audio clips]
* [http://www.world-science.net/othernews/060706_violin.htm Article on Mari Kimura]

References


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