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Effects Of Audibility And Multichannel Wide Dynamic Range Compression On Consonant Recognition For Listeners With Severe Hearing Loss, Evelyn Davies-Venn, Pamela Souza, Marc Brennan, G. Christopher Stecker
Effects Of Audibility And Multichannel Wide Dynamic Range Compression On Consonant Recognition For Listeners With Severe Hearing Loss, Evelyn Davies-Venn, Pamela Souza, Marc Brennan, G. Christopher Stecker
Department of Special Education and Communication Disorders: Faculty Publications
Objective—This study examined the effects of multichannel wide-dynamic range compression (WDRC) amplification and stimulus audibility on consonant recognition and error patterns.
Design—Listeners had either severe or mild-to-moderate sensorineural hearing loss. Each listener was monaurally fit with a wearable hearing aid using typical clinical procedures, frequency-gain parameters and a hybrid of clinically prescribed compression ratios for DSL (Scollie et al., 2005) and NAL-NL (Dillon, 1999). Consonant-vowel nonsense syllables were presented in soundfield at multiple input levels (50, 65, 80 dB SPL). Test conditions were four-channel fast-acting WDRC amplification and a control compression limiting (CL) amplification condition. Listeners identified the stimulus heard …