Differences between listeners with early and late immersion age in spatial release from masking in various acoustic environments

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dc.contributor.author Hui, CT Justine
dc.contributor.author Hioka, Yusuke
dc.contributor.author Masuda, Hinako
dc.contributor.author Watson, Catherine I
dc.date.accessioned 2022-05-18T03:29:47Z
dc.date.available 2022-05-18T03:29:47Z
dc.date.issued 2022-3-1
dc.identifier.citation Speech Communication 139:51-61 01 Apr 2022
dc.identifier.issn 0167-6393
dc.identifier.uri https://hdl.handle.net/2292/59338
dc.description.abstract It is well-known that we benefit from binaural hearing when listening to the speech of interest amongst noise, where spatial cues may release our auditory perception from masking. However, this benefit deteriorates with external factors such as the reverberation in the room, as well as internal factors such as our familiarity with the language of interest. The current study examined spatial release from masking (SRM) experienced by listeners with different age of immersion to New Zealand English (NZE) in varying room acoustics. A speech intelligibility test was conducted using an Ambisonic-based sound reproduction system to reproduce speech and noise as if they were produced in a seminar room and a chapel at two distances between the source and the listener: 2 m and 5 m. The rooms differed in reverberation time (RT), and the distances modified the speech clarity (C50). The participants were split into an early immersed group (n= 20), and a late immersed group (n= 37), where the participants in the early immersed group were immersed in NZE before the age of 13, and those in the late immersed group were immersed after the age of 15. A babble noise was played from eight azimuthal angles (0, ±45∘, ±90∘, ±135∘, 180∘) while the target speech, which was sentences from the Bamford–Kowal–Bench (BKB) corpus, was played from 0∘. Early immersed listeners were able to understand speech better than late immersed listeners within most of the room acoustics tested. However, once the room acoustics caused too adverse listening conditions at a high RT and low C50, neither group could benefit from SRM. The early immersed group was also able to make use of spatial cues to benefit from SRM more than the late immersed group, even in the least reverberant room scenario in the current study. Finally, while room acoustics affected how the groups benefitted from SRM, this effect was only observed when the source was located 5 m from the listener.
dc.language en
dc.publisher Elsevier BV
dc.relation.ispartofseries Speech Communication
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm
dc.rights.uri https://www.elsevier.com/about/policies/sharing
dc.subject Clinical Research
dc.subject 0801 Artificial Intelligence and Image Processing
dc.subject 1702 Cognitive Sciences
dc.subject 2004 Linguistics
dc.title Differences between listeners with early and late immersion age in spatial release from masking in various acoustic environments
dc.type Journal Article
dc.identifier.doi 10.1016/j.specom.2022.02.004
pubs.begin-page 51
pubs.volume 139
dc.date.updated 2022-04-04T01:46:29Z
dc.rights.holder Copyright: The author en
pubs.end-page 61
pubs.publication-status Published
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Journal Article
pubs.elements-id 884403

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