Perceptual Weighting of Stop Consonant Cues by Normal and Impaired Listeners in Reverberation versus Noise

Autor/inn/en	Hedrick, Mark S.; Younger, Mary Sue
Titel	Perceptual Weighting of Stop Consonant Cues by Normal and Impaired Listeners in Reverberation versus Noise
Quelle	In: Journal of Speech, Language, and Hearing Research, 50 (2007) 2, S.254-269 (16 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1092-4388
DOI	10.1044/1092-4388(2007/019)
Schlagwörter	Phonemes; Cues; Hearing (Physiology); Hearing Impairments; Adults; Auditory Perception; Articulation (Speech); Auditory Stimuli; Age Differences; Perception Tests; Acoustics; Perceptual Impairments + Suchen Sie Ihr Suchwort? Fonem; Stichwort; Gehör; Hören; Hearing impairment; Hörbehinderung; Auditive Wahrnehmung; Akustische Wahrnehmung; Akustik; Auditive Stimulation; Age; Difference; Age difference; Altersunterschied; Perceptual handicaps; Wahrnehmungsstörung
Abstract	Purpose: To determine if listeners with normal hearing and listeners with sensorineural hearing loss give different perceptual weightings to cues for stop consonant place of articulation in noise versus reverberation listening conditions. Method: Nine listeners with normal hearing (23-28 years of age) and 10 listeners with sensorineural hearing loss (31-79 years of age, median 66 years) participated. The listeners were asked to label the consonantal portion of synthetic CV stimuli as either /p/or /t/. Two cues were varied: (a) the amplitude of the spectral peak in the F4/F5 frequency region of the burst was varied across a 30-dB range relative to the adjacent vowel peak amplitude in the same frequency region, (b) F2/F3 formant transition onset frequencies were either appropriate for /p/, /t/ or neutral for the labial/alveolar contrast. Results: Weightings of relative amplitude and transition cues for voiceless stop consonants depended on the listening condition (quiet, noise, or reverberation), hearing loss, and age of listener. The effects of age with hearing loss reduced the perceptual integration of cues, particularly in reverberation. The effects of hearing loss reduced the effectiveness of both cues, notably relative amplitude in reverberation. Conclusions: Reverberation and noise conditions have different perceptual effects. Hearing loss and age may have different, separable effects. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10