Difference between revisions of "Semitone scale"
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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) | ||
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[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] | ||
{{dc}} | {{dc}} | ||
[[Category:Phonetics]] | [[Category:Phonetics]] |
Latest revision as of 20:48, 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)