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Predicting the Intelligibility of Cochlear-implant Vocoded
Speech from Objective Quality Measure(12)
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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Experiments
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Experiments 1 and 2 listened to vocoded English stimuli
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Experiment 3 listened to vocoded Mandarin Chinese stimuli
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Total of 30 and 24 test conditions,respectively
total of 20 test conditions,respectively
Twenty sentences, and none of the sentences were repeated.
The order of the test conditions was randomized.
Subjects were given a 5-minute break every 30 minutes
during the testing session..
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