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Speech intelligibility in virtual restaurants

Culling, John F. ORCID: 2016. Speech intelligibility in virtual restaurants. Journal of the Acoustical Society of America 140 (4) , 2418. 10.1121/1.4964401

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Speech reception thresholds (SRTs) for a target voice on the same virtual table were measured in various restaurant simulations under conditions of masking by between 1 and 8 interferers at other tables. Results for different levels of reverberation and different simulation techniques were qualitatively similar. SRTs increased steeply with the number of interferers, reflecting progressive failure to perceptually unmask the target speech as the acoustic scene became more complex. For a single interferer, continuous noise was the most effective masker, and a single interfering voice of either gender was least effective. With two interferers, evidence of informational masking emerged as a difference in SRT between forward and reversed speech, but SRTs for all interferer types progressively converged at 4 and 8 interferers. In simulation based on a real room, this occurred at a signal-to-noise ratio of around -5 dB.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Publisher: Acoustical Society of America
ISSN: 0001-4966
Date of First Compliant Deposit: 30 September 2016
Date of Acceptance: 18 September 2016
Last Modified: 05 Nov 2022 10:12

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