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Predicting the Intelligibility of Cochlear-implant Vocoded
Speech from Objective Quality Measure(8)
Department of Electrical Engineering, The University of Texas at Dallas, Richardson, Texas75083, USA
Chairman:Hung-Chi Yang
Presenter: Yu-Kai Wang
Advisor: Dr. Yeou-Jiunn Chen
Date: 2012.12.12
Material and Methods
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2.1 Subjects
Speech intelligibility data were collected from three
listening experiments using NH listeners as subjects.
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Experiments 1 and 2(by Chen and Loizou )
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Vocoded English
Vocoded Mandarin Chinese
Assessed the contribution of weak consonants to vocoded English
speech intelligibility in noisy environments.
Experiment 3
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Predicting the intelligibility of vocoded Mandarin sentences.
Material and Methods
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Used objective speech quality measures for predicting the
intelligibility of vocoded speech in noisy conditions.
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Vocoded English
Vocoded Mandarin Chinesein
This study investigated the performance.
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The linear predictive coding (LPC)
The log-likelihood ratio (LLR)
The Itakura-Saito (IS)
The cepstrum (CEP) distance measures