Imperial College London
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DrLorenzoPicinali

Faculty of Engineering, Dyson School of Design Engineering

Reader in Audio Experience Design
 
 
 
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Contact

 

l.picinali Website CV

 
 
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Location

 

Level 1 staff officeDyson BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Picinali:2008,
author = {Picinali, L and Prosser, S and Mancuso, A and Vercellesi, G},
pages = {2245--2249},
title = {Speech intelligibility in virtual environments simulating an asymmetric directional microphone configuration},
year = {2008}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - In the hearing aids applications, the benefit of directional processing and bilateral listening in terms of speech intelligibility from frontal sound sources has been well documented in recent and past studies. Nevertheless, only a few of the situations in real life present a speaker located exactly in a frontal position, and this seems to constitute a limitation for the directional microphones mounted on the hearing aids. Although several attempts have been done to optimize the directional pattern of the hearing aid trough self-adapting or manually controlled settings, practical results tend to remain quite unsatisfactory. The purpose of this study was to explore the advantage expected by a bilateral hearing aid with an asymmetric directional microphone configuration: responses in terms of speech intelligibility in noise were evaluated in normally hearing subjects for frontal and lateral sound sources. Through a 3D Ambisonic virtual environment manipulation, the presence of two microphones (the two hearing aids) was simulated in a noisy environment with a speech sound source. The listeners were presented with the signals synthesized from the two simulated microphones calibrated with symmetrical and asymmetrical directional patterns, played through a pair of headphones. The speech intelligibility was measured for all the directional microphones' configurations and for reference speech sources located in frontal and lateral positions.
AU  - Picinali,L
AU  - Prosser,S
AU  - Mancuso,A
AU  - Vercellesi,G
EP  - 2249
PY  - 2008///
SN  - 2226-5147
SP  - 2245
TI  - Speech intelligibility in virtual environments simulating an asymmetric directional microphone configuration
ER  -
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