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Multidimensional Analysis of Conversational Telephone Speech

  • Book
  • © 2018

Overview

Authors:
  1. Friedemann Köster

    1. Quality and Usability Lab, TU Berlin Quality and Usability Lab, Berlin, Germany

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  • Offers a new diagnostic information model to assess the quality of telephone speech
  • Sets a major landmark for the optimization of telecommunication systems
  • Provides an analysis tool pointing out sources for possible low quality ratings
  • 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 (9 chapters)

  1. Front Matter

    Pages i-xiii
    Download chapter PDF

  2. Introduction

    • Friedemann Köster
    Pages 1-4

  3. Fundamentals

    • Friedemann Köster
    Pages 5-32

  4. Speech Quality in a Telephone Conversation

    • Friedemann Köster
    Pages 33-66

  5. Perceptual Quality Space in a Telephone Conversation

    • Friedemann Köster
    Pages 67-84

  6. Direct Scaling of Perceptual Dimensions in a Conversational Situation

    • Friedemann Köster
    Pages 85-96

  7. Conversational Validation Experiments

    • Friedemann Köster
    Pages 97-123

  8. Resulting Quality Profile in a Telephone Conversation

    • Friedemann Köster
    Pages 125-138

  9. Instrumental Diagnostic Conversational Quality Modeling

    • Friedemann Köster
    Pages 139-159

  10. Conclusions and Future Work

    • Friedemann Köster
    Pages 161-165

  11. Back Matter

    Pages 167-184
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Keywords

About this book

This book presents a new diagnostic information methodology to assess the quality of conversational telephone speech. For this, a conversation is separated into three individual conversational phases (listening, speaking, and interaction), and for each phase corresponding perceptual dimensions are identified. A new analytic test method allows gathering dimension ratings from non-expert test subjects in a direct way. The identification of the perceptual dimensions and the new test method are validated in two sophisticated conversational experiments. The dimension scores gathered with the new test method are used to determine the quality of each conversational phase, and the qualities of the three phases, in turn, are combined for overall conversational quality modeling. The conducted fundamental research forms the basis for the development of a preliminary new instrumental diagnostic conversational quality model. This multidimensional analysis of conversational telephone speech is a major landmark towards deeply analyzing conversational speech quality for diagnosis and optimization of telecommunication systems.  

Authors and Affiliations

  • Quality and Usability Lab, TU Berlin Quality and Usability Lab, Berlin, Germany

    Friedemann Köster

About the author

Friedemann Köster studied Industrial Engineering at the Christian-Albrechts-University of Kiel. In 2012 he finished his studies and received his Dipl.-Wirtsch.-Ing. degree. From 2012 until 2017 he was working as a research assistant at the Quality and Usability Lab of Deutsche Telekom Laboratories, TU-Berlin, where he received a Phd degree in the field of quality.

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