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Main Title: Segmentation of binaural room impulse responses for speech intelligibility prediction
Author(s): Kokabi, Omid
Brinkmann, Fabian
Weinzierl, Stefan
Type: Article
Language Code: en
Abstract: The two most important aspects in binaural speech perception—better-ear-listening and spatial-release-from-masking—can be predicted well with current binaural modeling frameworks operating on head-related impulse responses, i.e., anechoic binaural signals. To incorporate effects of reverberation, a model extension was proposed, splitting binaural room impulse responses into an early, useful, and late, detrimental part, before being fed into the modeling framework. More recently, an interaction between the applied splitting time, room properties, and the resulting prediction accuracy was observed. This interaction was investigated here by measuring speech reception thresholds (SRTs) in quiet with 18 normal-hearing subjects for four simulated rooms with different reverberation times and a constant room geometry. The mean error with one of the most promising binaural prediction models could be reduced by about 1 dB by adapting the applied splitting time to room acoustic parameters. This improvement in prediction accuracy can make up a difference of 17% in absolute intelligibility within the applied SRT measurement paradigm.
Issue Date: 16-Nov-2018
Date Available: 13-Sep-2019
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
534 Schall und verwandte Schwingungen
Subject(s): speech perception
acoustic environment
room adaptation
binaural de-reverberation
Journal Title: The journal of the Acoustical Society of America
Publisher: Acoustical Society of America; AIP Publishing
Publisher Place: Melville, NY
Volume: 144
Issue: 5
Publisher DOI: 10.1121/1.5078598
Page Start: 2793
Page End: 2800
EISSN: 1520-8524
ISSN: 0001-4966
Appears in Collections:FG Audiokommunikation » Publications

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