Voice and Speech Quality Perception: Assessment and Evaluation

Portada
Springer Science & Business Media, 2 ago. 2005 - 208 páginas

Foundations of Voice and Speech Quality Perception starts out with the fundamental question of: "How do listeners perceive voice and speech quality and how can these processes be modeled?" Any quantitative answers require measurements. This is natural for physical quantities but harder to imagine for perceptual measurands. This book approaches the problem by actually identifying major perceptual dimensions of voice and speech quality perception, defining units wherever possible and offering paradigms to position these dimensions into a structural skeleton of perceptual speech and voice quality. The emphasis is placed on voice and speech quality assessment of systems in artificial scenarios. Many scientific fields are involved. This book bridges the gap between two quite diverse fields, engineering and humanities, and establishes the new research area of Voice and Speech Quality Perception.

 

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Índice

Introduction
Aims and Methods of Speech Quality Assessment
1
21 Summary
5
Aspects of Quality Laying the Foundations
7
32 Quality as the design goal
12
33 Designing the quality of innovative entities
14
34 Summary
16
Speech Technology and Speech Quality Perception
19
831 Intelligibility tests in speech technology and audiology
93
84 Summary
98
Towards the Structure of Speech Quality Measurements
101
92 Aspects specific to usage
103
93 Systemic view of speech quality measurements
105
Segmental Intelligibility A Dimension of Quality
109
An introduction
110
1013 The Semantically Unpredictable Sentences SUS Test
113

42 Speech synthesis and its different design aims
24
Emphases and aims
25
422 Experience of techniques and expectations of quality
29
43 Elements of quality of speech synthesizers
31
The text as an element of quality
33
45 Synthetic speech as a causal sign
37
46 Functional internal system entities as elements of quality
42
47 Speech synthesis and associated goals in research
43
48 Summary
45
From Speech Perception to Assessment of Quality
49
Form and adaptation
51
53 Interindividual perception
54
54 Speech quality assessment as a measuring process
55
55 Measuring and measurands
57
56 Measuring processes vs investigative processes
60
57 Measuring instruments and measuring organs
61
58 Summary
64
Quality Assessment in View of System Theory
67
Auditory Measuring Procedures
71
72 Measuring scales
76
722 The scale as a function of the measurand
78
73 Summary
82
Formal aspects of speech quality measurements
85
83 Speech quality tests as measuring tools
92
1014 The CLID Test
114
1015 General information on the CLID methodology
115
1016 Test vocabulary as a measuring influence
120
102 On the comparability of study results
125
1027 On the influence of scaling
127
1022 On the influence of the stimulus context
129
1023 On the influence of syllable structure and frequency
130
1024 On the validity of the test results
135
103 Summary
137
The Cluster Similarity Study
139
111 On the background of the study
140
112 Details of the study
144
113 On rating and scaling
145
Similarity profile of prenuclear consonant clusters
149
115 Comparison of the similarity profile of natural and synthetic speech
154
116 Similarity profile for various vowel contexts
160
117 Summary
161
Conclusion
171
References
175
Definitions
195
Subject Index
197
Author Index
201
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