Influence of Altered Auditory Feedback on Oral-Nasal Balance in Speech

Journal of Speech, Language, and Hearing Research : JSLHR
Gillian de Boer, T Bressmann

Abstract

This study explored the role of auditory feedback in the regulation of oral-nasal balance in speech. Twenty typical female speakers wore a Nasometer 6450 (KayPentax) headset and headphones while continuously repeating a sentence with oral and nasal sounds. Oral-nasal balance was quantified with nasalance scores. The signals from 2 additional oral and nasal microphones were played back to the participants through the headphones. The relative loudness of the nasal channel in the mix was gradually changed so that the speakers heard themselves as more or less nasal. An additional amplitude control group of 9 female speakers completed the same task while hearing themselves louder or softer in the headphones. A repeated-measures analysis of variance of the mean nasalance scores of the stimulus sentence at baseline, minimum, and maximum nasal feedback conditions demonstrated a significant effect of the nasal feedback condition. Post hoc analyses found that the mean nasalance scores were lowest for the maximum nasal feedback condition. The scores of the minimum nasal feedback condition were significantly higher than 2 of the 3 baseline feedback conditions. The amplitude control group did not show any effects of volume changes on nasala...Continue Reading

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Citations

Oct 23, 2019·Journal of Speech, Language, and Hearing Research : JSLHR·Gillian de BoerTim Bressmann
Nov 22, 2019·Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)·Varsha Srinivas, Tim Bressmann
Aug 23, 2019·Folia Phoniatrica Et Logopaedica : Official Organ of the International Association of Logopedics and Phoniatrics (IALP)·Charlene SantoniTim Bressmann

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