Subjective Quality Measurement of Speech: Its Evaluation, Estimation and Applications

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Springer Science & Business Media, Feb 9, 2012 - Technology & Engineering - 154 pages
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It is becoming crucial to accurately estimate and monitor speech quality in various ambient environments to guarantee high quality speech communication. This practical hands-on book shows speech intelligibility measurement methods so that the readers can start measuring or estimating speech intelligibility of their own system. The book also introduces subjective and objective speech quality measures, and describes in detail speech intelligibility measurement methods. It introduces a diagnostic rhyme test which uses rhyming word-pairs, and includes: An investigation into the effect of word familiarity on speech intelligibility. Speech intelligibility measurement of localized speech in virtual 3-D acoustic space using the rhyme test. Estimation of speech intelligibility using objective measures, including the ITU standard PESQ measures, and automatic speech recognizers.
 

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Contents

1 Introduction
1
2 Speech Quality
7
3 The Japanese Diagnostic Rhyme Test
21
4 The Effect of Word Familiarity on the DRT Scores
29
5 Examples of NoiseDegraded Speech Intelligibility Measurements Using the Japanese DRT
37
6 DRT Evaluation of Localized Speech Intelligibility in Virtual 3D Acoustic Space
46
7 Other DRT Evaluation Examples
75
8 Estimation of DRT Scores Using Objective Measures
93
9 Summary
142
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