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Integral and Diagnostic Intrusive Prediction of Speech Quality

  • Book
  • © 2011

Overview

Authors:
  1. Nicolas Côté

    1. , Centre Européen de Réalité Virtuelle, Université de Bretagne Occidentale, Plouzané, France

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  • Develops a reliable intrusive speech quality model which estimates auditory test results
  • Introduces a new perceptual and a cognitive model which simulate the whole quality judgment process
  • Predicts very well the quality of many speech transmitting systems
  • Includes supplementary material: sn.pub/extras

Part of the book series: T-Labs Series in Telecommunication Services (TLABS)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-xvii
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  2. Speech Quality in Telecommunications

    • Nicolas Côté
    Pages 5-35

  3. Speech Quality Measurement Methods

    • Nicolas Côté
    Pages 37-85

  4. Optimization and Application of Integral Quality Estimation Models

    • Nicolas Côté
    Pages 87-131

  5. Diagnostic Instrumental Speech Quality Model

    • Nicolas Côté
    Pages 133-186

  6. Evaluation of DIAL

    • Nicolas Côté
    Pages 187-211

  7. Conclusions and Outlooks

    • Nicolas Côté
    Pages 213-217

  8. Back Matter

    Pages 219-248
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Keywords

About this book

This work deals with the instrumental measurement methods for the perceived quality of transmitted speech. These measures simulate the speech perception process employed by human subjects during auditory experiments. The measure standardized by the International Telecommunication Union (ITU), called “Wideband-Perceptual Speech Quality Evaluation (WB-PESQ)”, is not able to quantify all these perceived characteristics on a unidimensional quality scale, the Mean Opinion Score (MOS) scale. Recent experimental studies showed that subjects make use of several perceptual dimensions to judge about the quality of speech signals. In order to represent the signal at a higher stage of perception, a new model, called “Diagnostic Instrumental Assessment of Listening quality (DIAL)”, has been developed. It includes a perceptual and a cognitive model which simulate the whole quality judgment process. Except for strong discontinuities, DIAL predicts very well speech quality of different speech processing and transmission systems, and it outperforms the WB-PESQ.

Authors and Affiliations

  • , Centre Européen de Réalité Virtuelle, Université de Bretagne Occidentale, Plouzané, France

    Nicolas Côté

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