Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Head orientation benefit to speech intelligibility in noise for cochlear implant users and in realistic listening conditions

Grange, Jacques and Culling, John 2016. Head orientation benefit to speech intelligibility in noise for cochlear implant users and in realistic listening conditions. Journal of the Acoustical Society of America 140 (6) , pp. 4061-4072. 10.1121/1.4968515

[img]
Preview
PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview

Abstract

Cochlear implant (CI) users suffer from elevated speech-reception thresholds and may rely on lip reading. Traditional measures of spatial release from masking quantify speech-reception-threshold improvement with azimuthal separation of target speaker and interferers and with the listener facing the target speaker. Substantial benefits of orienting the head away from the target speaker were predicted by a model of spatial release from masking. Audio-only and audio-visual speech-reception thresholds in normal-hearing (NH) listeners and bilateral and unilateral CI users confirmed model predictions of this head-orientation benefit. The benefit ranged 2–5 dB for a modest 30� orientation that did not affect the lip-reading benefit. NH listeners’ and CI users’ lip-reading benefit measured 3 and 5 dB, respectively. A head-orientation benefit of �2 dB was also both predicted and observed in NH listeners in realistic simulations of a restaurant listening environment. Exploiting the benefit of head orientation is thus a robust hearing tactic that would benefit both NH listeners and CI users in noisy listening conditions.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Publisher: Acoustical Society of America
ISSN: 0001-4966
Date of First Compliant Deposit: 25 January 2017
Date of Acceptance: 9 November 2016
Last Modified: 25 Oct 2019 22:10
URI: http://orca-mwe.cf.ac.uk/id/eprint/97748

Citation Data

Cited 8 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item

Downloads

Downloads per month over past year

View more statistics