Effectiveness of computer-based auditory training in improving the perception of noise-vocoded speech

Stacey, PC ORCID: 0000-0002-6018-8979 and Summerfield, AQ, 2007. Effectiveness of computer-based auditory training in improving the perception of noise-vocoded speech. Journal of the Acoustical Society of America, 121 (5), pp. 2923-2935. ISSN 0001-4966

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Abstract

Five experiments were designed to evaluate the effectiveness of “high-variability” lexical training in improving the ability of normal-hearing subjects to perceive noise-vocoded speech that had been spectrally shifted to simulate tonotopic misalignment. Two approaches to training were implemented. One training approach required subjects to recognize isolated words, while the other training approach required subjects to recognize words in sentences. Both approaches to training improved the ability to identify words in sentences. Improvements following a single session (lasting 1–2 h) of auditory training ranged between 7 and 12 %pts and were significantly larger than improvements following a visual control task that was matched with the auditory training task in terms of the response demands. An additional three sessions of word- and sentence-based training led to further improvements, with the average overall improvement ranging from 13 to 18 %pts. When a tonotopic misalignment of 3 mm rather than 6 mm was simulated, training with several talkers led to greater generalization to new talkers than training with a single talker. The results confirm that computer-based lexical training can help overcome the effects of spectral distortions in speech, and they suggest that training materials are most effective when several talkers are included.

Item Type: Journal article
Description: The following article appeared in [citation above] and may be found at http://dx.doi.org/10.1121/1.2713668
Publication Title: Journal of the Acoustical Society of America
Creators: Stacey, P.C. and Summerfield, A.Q.
Publisher: Acoustical Society of America
Date: 2007
Volume: 121
Number: 5
ISSN: 0001-4966
Identifiers:
NumberType
10.1121/1.2713668DOI
Rights: Copyright 2007 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.
Divisions: Schools > School of Social Sciences
Depositing User: EPrints Services
Date Added: 09 Oct 2015 09:43
Last Modified: 09 Jun 2017 13:09
URI: http://irep.ntu.ac.uk/id/eprint/1708

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