

Author: Sirker U.
Publisher: S. Hirzel Verlag
ISSN: 1610-1928
Source: Acta Acustica united with Acustica, Vol.41, Iss.4, 1979-01, pp. : 246-251
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Abstract
In the amplitude-frequency-spectra of the tones of wind instruments the energy maxima within zones of absolute constant frequency are often called formants. By contrast to speech sounds in which there is a small difference in vowel quality of the sound as heard and the energy maxima in the amplitude-frequency spectra, instrumental sounds also show weakly produced maxima.In this paper hearing experiments are described with the aim to correlate distributions of audible vowel qualities with analyzed distributions of third-octave bands in the sound spectra.Tones of bassoon exhibit audible vowel qualities in the [u-o-a-o]-region, the highest tones of flute, oboe and clarinet are perceived in the [e-i]-region. Deep and middle tones of the oboe are concentrated in the [æ-ø-y-ε]-region. By contrast to these tones the sounds of flute and clarinet show vowel qualities which alter with the fundamental pitch of the tones respectively distributed over several classes of vowel.
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