Semitone scale: Difference between revisions

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==Definition==
 
Twelve [[semitone]]s form one [[octave]], which is defined as a doubling of the [[fundamental frequency]]. As the human [[auditory system]] perceives tones in a logarithmic way (instead of in a linear way), the logarithmic semitone scale is a more appropriate measure of the perceptual consequences of differences in fundamental frequency. The following conversion transforms frequency (F) values into semitones (ST):  
Twelve [[semitone]]s form one [[octave]], which is defined as a doubling of the [[fundamental frequency]]. As the human [[auditory system]] perceives tones in a logarithmic way (instead of in a linear way), the logarithmic semitone scale is a more appropriate measure of the perceptual consequences of differences in fundamental frequency. The following conversion transforms frequency (F) values into semitones (ST):  


  ST=39.87*log(F/50)
  ST=39.87*log(F/50)


=== Links ===
== Links ==
 
[http://www2.let.uu.nl/UiL-OTS/Lexicon/zoek.pl?lemma=Semitone+scale&lemmacode=1363 Utrecht Lexicon of Linguistics]
[http://www2.let.uu.nl/UiL-OTS/Lexicon/zoek.pl?lemma=Semitone+scale&lemmacode=1363 Utrecht Lexicon of Linguistics]


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[[Category:Phonetics]]
[[Category:Phonetics]]

Latest revision as of 18:48, 28 October 2014

STUB


Definition

Twelve semitones form one octave, which is defined as a doubling of the fundamental frequency. As the human auditory system perceives tones in a logarithmic way (instead of in a linear way), the logarithmic semitone scale is a more appropriate measure of the perceptual consequences of differences in fundamental frequency. The following conversion transforms frequency (F) values into semitones (ST):

ST=39.87*log(F/50)

Utrecht Lexicon of Linguistics