Speech detection and localization in a reverberant multitalker environment by normal-hearing and hearing-impaired listeners

Jörg M. Buchholz, Virginia Best

    Research output: Contribution to journalArticle

    6 Downloads (Pure)

    Abstract

    Spatial perception is an important part of a listener's experience and ability to function in everyday environments. However, the current understanding of how well listeners can locate sounds is based on measurements made using relatively simple stimuli and tasks. Here the authors investigated sound localization in a complex and realistic environment for listeners with normal and impaired hearing. A reverberant room containing a background of multiple talkers was simulated and presented to listeners in a loudspeaker-based virtual sound environment. The target was a short speech stimulus presented at various azimuths and distances relative to the listener. To ensure that the target stimulus was detectable to the listeners with hearing loss, masked thresholds were first measured on an individual basis and used to set the target level. Despite this compensation, listeners with hearing loss were less accurate at locating the target, showing increased front-back confusion rates and higher root-mean-square errors. Poorer localization was associated with poorer masked thresholds and with more severe low-frequency hearing loss. Localization accuracy in the multitalker background was lower than in quiet and also declined for more distant targets. However, individual accuracy in noise and quiet was strongly correlated.

    Original languageEnglish
    Pages (from-to)1469-1477
    Number of pages9
    JournalJournal of the Acoustical Society of America
    Volume147
    Issue number3
    DOIs
    Publication statusPublished - 1 Mar 2020

    Bibliographical note

    Copyright 2020 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. The following article appeared in Buchholz, J. M., & Best, V. (2020). Speech detection and localization in a reverberant multitalker environment by normal-hearing and hearing-impaired listeners. The Journal of the Acoustical Society of America, 147(3), 1469-1477 and may be found at https://doi.org/10.1121/10.0000844

    Fingerprint Dive into the research topics of 'Speech detection and localization in a reverberant multitalker environment by normal-hearing and hearing-impaired listeners'. Together they form a unique fingerprint.

    Cite this