Integral and Diagnostic Intrusive Prediction of Speech Quality
(Sprache: Englisch)
This volume examines ways of measuring the perceived quality of transmitted speech. It covers WB-PESQ, or wideband-perceptual speech evaluation, as well as the new diagnostic-instrumental method (DIAL), which includes perceptual and cognitive elements.
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This volume examines ways of measuring the perceived quality of transmitted speech. It covers WB-PESQ, or wideband-perceptual speech evaluation, as well as the new diagnostic-instrumental method (DIAL), which includes perceptual and cognitive elements.
Klappentext zu „Integral and Diagnostic Intrusive Prediction of Speech Quality “
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.
Inhaltsverzeichnis zu „Integral and Diagnostic Intrusive Prediction of Speech Quality “
Speech Quality in Telecommunications.- Speech QualityMeasurement Methods.- Optimization and Application of Integral Quality Estimation Models.- Diagnostic Instrumental Speech QualityModel.-Evaluation of DIAL.- Conclusions and Outlooks.- Modulated Noise Reference Unit (MNRU).-Databases test-plan
Bibliographische Angaben
- Autor: Nicolas Côté
- 2011, XVIII, 250 Seiten, Masse: 16 x 24,1 cm, Gebunden, Englisch
- Verlag: Springer, Berlin
- ISBN-10: 3642184626
- ISBN-13: 9783642184628
Sprache:
Englisch
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