Affiliation:
1. Sensory Communication Research Laboratory, Gallaudet College, Washington, D.C.
2. Army Audiology and Speech Center, Walter Reed Army Medical Center, Washington, D.C.
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.
Publisher
American Speech Language Hearing Association
Cited by
61 articles.
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