title: The effect of presentation level on spectral weights for sentences.
abstract: Psychophysical data indicate that spectral weights tend to increase with increasing presentation level at high frequencies. The present study examined whether spectral weights for speech perception are similarly affected by presentation level. Stimuli were sentences filtered into five contiguous frequency bands and presented at each of two levels (75 and 95 dB sound pressure level [SPL]). For the highest band (2807-10,000 Hz), normal-hearing listeners' weights were higher for the higher presentation level. Weights for the 95-dB-SPL level resembled those previously estimated for hearing-impaired listeners tested at comparably high levels, suggesting that hearing loss itself may not play a large role in spectral weighting for a sentence recognition task.
authors.affiliation: Department of Psychological Sciences, Case Western Reserve University, Cleveland, Ohio 44106, USA.
authors.forename: Lauren
authors.initials: L
authors.lastname: Calandruccio
authors.affiliation: Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA.
authors.forename: Emily
authors.initials: E
authors.lastname: Buss
authors.affiliation: Department of Communication Sciences and Disorders, Institute for Sensory Research, Syracuse University, Syracuse, New York 13244, USA.
authors.forename: Karen A
authors.initials: KA
authors.lastname: Doherty
mesh_terms: D000161:Acoustic Stimulation; D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D005260:Female; D034381:Hearing Loss / Q000503:physiopathology*; D006801:Humans; D007802:Language; D008144:Loudness Perception / Q000502:physiology; D008297:Male; D010470:Perceptual Masking / Q000502:physiology; D010897:Pitch Discrimination / Q000502:physiology; D021641:Recognition, Psychology / Q000502:physiology; D013018:Sound Spectrography; D013067:Speech Perception / Q000502:physiology*; D055815:Young Adult
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