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A neural network model for speech intelligibility quantification

Li, FF and Cox, TJ 2007, 'A neural network model for speech intelligibility quantification' , Applied Soft Computing, 7 (1) , pp. 145-155.

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Abstract

A neural network based model is developed to quantify speech intelligibility by blind-estimating speech transmission index, an objective rating index for speech intelligibility of transmission channels, from transmitted speech signals without resort to knowledge of original speech signals. It consists of a Hilbert transform processor for speech envelope detection, a Welch average periodogram algorithm for envelope spectrum estimation, a principal components analysis (PCA) network for speech feature extraction and a multi-layer back-propagation network for non-linear mapping and case generalisation. The developed model circumvents the use of artificial test signals by exploiting naturally occurring speech signals as probe stimuli, reduces measurement channels from two to one and hence facilitates in situ assessment of speech intelligibility. From a cognitive science viewpoint, the proposed method might be viewed as a successful paradigm of mimicking human perception of speech intelligibility using a hybrid model built around artificial neural networks.

Item Type: Article
Themes: Subjects / Themes > Q Science > QC Physics > QC221-246 Acoustics - Sound
Subjects outside of the University Themes
Schools: Colleges and Schools > College of Science & Technology > School of the Built Environment
Colleges and Schools > College of Science & Technology > School of Computing, Science and Engineering > Acoustics Research Centre
Journal or Publication Title: Applied Soft Computing
Publisher: Elsevier
Refereed: Yes
ISSN: 1568-4946
Depositing User: H Kenna
Date Deposited: 11 Sep 2007 14:18
Last Modified: 20 Aug 2013 16:47
URI: http://usir.salford.ac.uk/id/eprint/435

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