© 2013

Dimension-based Quality Modeling of Transmitted Speech


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

Table of contents

  1. Front Matter
    Pages i-xii
  2. Marcel Wältermann
    Pages 1-3
  3. Marcel Wältermann
    Pages 63-93
  4. Marcel Wältermann
    Pages 95-113
  5. Marcel Wältermann
    Pages 115-162
  6. Marcel Wältermann
    Pages 163-167
  7. Back Matter
    Pages 169-203

About this book


In this book, speech transmission quality is modeled on the basis of perceptual dimensions. The author identifies those dimensions that are relevant for today's public-switched and packet-based telecommunication systems, regarding the complete transmission path from the mouth of the speaker to the ear of the listener. Both narrowband (300-3400 Hz) as well as wideband (50-7000 Hz) speech transmission is taken into account. A new analytical assessment method is presented that allows the dimensions to be rated by non-expert listeners in a direct way. Due to the efficiency of the test method, a relatively large number of stimuli can be assessed in auditory tests. The test method is applied in two auditory experiments. The book gives the evidence that this test method provides meaningful and reliable results. The resulting dimension scores together with respective overall quality ratings form the basis for a new parametric model for the quality estimation of transmitted speech based on the perceptual dimensions. In a two-step model approach, instrumental dimension models estimate dimension impairment factors in a first step. The resulting dimension estimates are combined by a Euclidean integration function in a second step in order to provide an estimate of the total impairment.


ITU-T Rec. G.107 ITU-T Rec. P.800 Perceptual Dimensions Quality Assessment and Prediction Quality of Experience (QoE) Speech Signals Speech Transmission Quality Wideband E-model

Authors and affiliations

  1. 1., Quality and Usability LabTU BerlinBerlinGermany

Bibliographic information

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