Discrimination of Formant Frequency Transitions in Synthetic Vowels
- 1 September 1973
- journal article
- Published by American Speech Language Hearing Association in Journal of Speech and Hearing Research
- Vol. 16 (3) , 439-451
- https://doi.org/10.1044/jshr.1603.439
Abstract
Discrimination of second-formant (F 2 ) transitions in synthetic vowels was measured with and without the first formant (F 1 ) present, with and without a transition in F 1 , and with F 1 at various amplitudes relative to F 2 . Four normal-hearing subjects and 24 subjects with sensorineural loss were tested. At comfortably loud listening levels, F 1 interferes with discrimination of F 2 transitions by sensorineural subjects. Discrimination is affected by (1) the frequency region in which the F 2 transitions occur, (2) the relative amplitudes of F 1 and F 2 , (3) the presence of frequency transitions in F 1 , (4) the audiometric configuration of the listener, and (5) the proximity of F 1 to F 2 , in that order. When tested at high sound levels (95 and 105 dB SPL), normal-hearing subjects also show reduced discrimination.Keywords
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