alexa Effects of Stress, Stop Release, and Familiarization on Speech Recognition Thresholds
ISSN: 2471-9455

Journal of Phonetics & Audiology
Open Access

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Research Article

Effects of Stress, Stop Release, and Familiarization on Speech Recognition Thresholds

Noah Eggebraaten1 and Youkyung Bae2*

1Mayo Clinic Health System, Albert Lea, Minnesota, USA

2Department of Speech and Hearing Science, The Ohio State University, USA

*Corresponding Author:
Youkyung Bae
The Ohio State University, USA
Tel: 614-688-4948
Fax: 614-292-7504
E-mail: [email protected]

Received date: December 01, 2016; Accepted date: January 12, 2017; Published date: January 13, 2017

Citation: Eggebraaten N, Bae Y (2017) Effects of Stress, Stop Release, and Familiarization on Speech Recognition Thresholds. J phonet Audiol 3:123. doi: 10.4172/2471-9455.1000123

Copyright: © 2017 Eggebraaten N. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Objective: This study examined outcomes of common procedural variations of speech recognition threshold (SRT) testing, specifically related to the effects of equal syllable stress, word-final stop consonant release, and prior-familiarization, with the participants’ language status taken into account.

Methods: SRTs were obtained from 40 adults with normal hearing. Twenty participants received prior-familiarization with the spondee list and the other 20 received no prior-familiarization. Repeated SRT tests were administered using three different recordings which varied in syllable stress and word-final stop release patterns.

Results: The group with prior-familiarization demonstrated a threshold that was significantly lower than the group without prior-familiarization, by approximately 5 dB HL. Despite the statistically significant effects of equal syllable stress and word-final stop release on SRTs, the magnitude of SRT changes elicited by these acoustic-phonetic variations was only slightly above 1 dB HL. The monolinguals generally outperformed the bilinguals in SRT outcomes with the threshold difference less than 3 dB HL.

Conclusion: Findings from the present study suggest that familiarizing listeners with test vocabulary prior to SRT administration should continue to remain an important procedural requirement. Future research addressing the extent to which acoustic-phonetic variations of spondee production affect SRTs in individuals with hearing impairments is warranted.

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