Speech Coding Algorithms: Foundation and Evolution of Standardized Coders

Acronyms.

Notation.

Introduction.

Signal Processing Techniques.

Stochastic Processes and Models.

Linear Prediction.

Scalar Quantization.

Pulse Code Modulation and Its Variants.

Vector Quantization.

Scalar Quantization of Linear Prediction Coefficient.

Linear Prediction Coding.

Regular-Pulse Excitation Coders.

Code-Excited Linear Prediction.

The Federal Standard Version of CELP.

Vector Sum Excited Linear Prediction.

Low-Delay CELP.

Vector Quantization of Linear Prediction Coefficient.

Algebraic CELP.

Mixed Excitation Linear Prediction.

Source-Controlled Variable Bit-Rate CELP.

Speech Quality Assessment.

Appendix A: Minimum-Phase Property of the Forward Prediction-Error Filter.

Appendix B: Some Properties of Line Spectral Frequency.

Appendix C: Research Directions in Speech Coding.

Appendix D: Linear Combiner for Pattern Classification.

Appendix E: CELP: Optimal Long-Term Predictor to Minimize the Weighted Difference.

Appendix F: Review of Linear Algebra: Orthogonality, Basis, Linear Independence, and the Gram-Schmidt Algorithm.

Bibliography.

Index.