Title: A shift in formant frequencies is not the same as a shift in the center of gravity of a multiformant energy concentration
Abstract: Chistovich et al. [Frontiers of Speech Communication Research, edited by B. Lindblom and S. Ohman (Academic, New York, 1979), pp. 143–158] observed that when two formants are within about three critical bands, the auditory percept is like that of a single equivalent formant, in that a change in relative formant amplitude has about the same perceptual effect as a change in formant frequencies (shifting the center of gravity of the collective energy concentration). Klatt [Proc. ICASSP (Paris, 1982), pp. 1278–1281], on the other hand, was unable to replicate these findings. A small change in formant amplitude did not produce any measurable change in phonetic quality of a vowel. This experiment attempts to reconcile these two results by examining the various differences in stimuli and experimental design in the two studies. It is concluded that large changes in the relative levels off F1 and F2 for [ɔ] can change the perceived phonetic quality of the vowel, but the change is not the same as that induced by moving the formant frequencies because opposing changes in these two variables do not tend to cancel one another in the percept. [Work supported in part by an NIH grant.]
Publication Year: 1985
Publication Date: 1985-04-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 7
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