Cover Image
Read Now

Assessment and Prediction of Speech Quality in Telecommunications

The quality of a telecommunication voice service is largely inftuenced by the quality of the transmission system. Nevertheless, the analysis, synthesis and prediction of quality should take into account its multidimensional aspects. Quality can be regarded as a point where the perceived characterist...

Full description

Bibliographic Details
Main Author: Möller, Sebastian
Format: eBook
Language:English
Published: New York, NY Springer US 2000, 2000
Edition:1st ed. 2000
Subjects:
Signal, Image And Speech Processing
Communications Engineering, Networks
Image Processing
Electrical Engineering
Acoustics
Speech Processing Systems
Signal Processing
Online Access:
Collection: Springer Book Archives -2004 - Collection details see MPG.ReNa
Table of Contents:
  • 8. Final Discussion and Conclusions
  • Appendices
  • A- Glossary
  • B- Perceptive Characteristics Resulting from New Technologies
  • 1. Impact of New Technologies and Equipment
  • 2. Classification for Modeling Purposes
  • C- Discussion of Articulation and Intelligibility Test Methodologies
  • D- Graeco-Latin-Square Test Design
  • E- SCT Scenarios
  • 1. Examples of SCT Scenarios
  • 2. Explanations of the SCT Dialog Structure Given to the Test Subjects
  • F- Closing Questionnaire Given after Laboratory Tests
  • G- E-Model Algorithm
  • H- Test Conditions and Results
  • 1. Test Conditions of the Isopreference Test
  • 2. Relation between E-Model Predictions and Test Results
  • 3. Comparison of SUBMOD Model Predictions and Test Results
  • 3. Instrumental Models for Single Transmission Aspects
  • 4. Call Set-Up and Call Completion Models
  • 5. Customer Behavior Models
  • 6. Application and Classification of Prediction Models
  • 7. Summary
  • 6. Relations between Factors Governing the Quality of Service
  • 1. ‘Relative’ Quality versus ‘Absolute’ Quality
  • 2. References and Normalization
  • 3. Assessment in Listening-Only and Conversation Tests
  • 4. Expectation
  • 5. Influence of the Cost Factor
  • 6. Multidimensional Assessment of Voice Transmission Quality
  • 7. Existence of an Integral “Psychological Quality Scale”
  • 8. Summary
  • 7. Quality of Prediction Models
  • 1. Prediction for Single Perceptive Types of Impairment
  • 2. Prediction for Combinations of Different Types of Impairment
  • 3. Impairment Factor Principle for Low-Bitrate Codecs
  • 4. Prediction of Frequency Characteristics
  • 5. Measurement of the Input Parameters
  • 6. Accuracy of Quality Predictions, Limitations
  • 7. Summary
  • 1. Introduction
  • 2. Considerations on Quality
  • 1. Speech Quality
  • 2. Quality in the Context of Telecommunications
  • 3. Factors Influencing the Quality of Service
  • 1. Perceptive Factors
  • 2. Configuration of a Telephone Connection
  • 3. Simulation of a Telephone Connection for Quality Assessment Purposes
  • 4. Classification of Transmission and Service Parameters
  • 5. Summary
  • 4. Quality Assessment in Telecommunications
  • 1. Choice of Test Subjects
  • 2. Articulation and Intelligibility Tests
  • 3. Listening-Only and Conversation Opinion Tests
  • 4. Performance Tests
  • 5. User Surveys
  • 6. Usability Evaluation
  • 7. Assessment of Cost-Related Factors
  • 8. Scaling
  • 9. Development of Conversation Test Scenarios
  • 10. Classification of Assessment Methods
  • 11. Summary
  • 5. Models for Predicting Speech Comm. Quality and Service-Related Models
  • 1. Mouth-to-Ear Models Using Parameters in the Frequ. Domain
  • 2. Mouth-to-Ear Models Using Scalar Parameters

Similar Items