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Contents of the dissertation

Table of content

• Note
• Summary
• Résumé
• Introducción
• Acknowledgements

1. Background
   1. Vocoding
      1. The speech chain
      2. Speech production
   2. Joint source-channel coding
      1. Tandem source and channel coding
      2. Joint coding
2. A real-life application
   1. The TCENLP vocoder
      1. Principles of the TCENLP vocoder
      2. Quantitative data of the TCENLP vocoder
   2. The CDMA IS-95A standard
      1. Rationale for the choice of the standard
      2. Overview of CDMA
      3. Fundamentals of IS-95A
   3. Our home-made channel coding attempt
3. Implementation and results
   1. IS-95A and fading channels
   2. The TCENLP vocoder
   3. Interfacing the components
   4. The channel part of the joint coding

• Conclusions
• References

1. Original project description
   1. Context
   2. Outline

Table of figures

• Figure-1.1 The speech chain
• Figure-1.2 The primary articulators of the vocal tract
• Figure-1.3 The source-filter model
• Figure-1.4 The transmission model
• Figure-2.1 Basic concept of analysis-by-synthesis
• Figure-2.2 Analysis-by-synthesis in a source-filter model
• Figure-2.3 IS-95A forward channel diagram
• Figure-2.4 IS-95A reverse channel diagram
• Figure-2.5 Joint “disjoint” channel coding
• Figure-3.1 A fading channel example from Simulink
• Figure-3.2 Effect of a fading channel over a constant signal
• Figure-3.3 Bit flow adapter
• Figure-3.4 Bit flow adapter and de-adapter
• Figure-3.5 the core of the frame adaptation algorithm
• Figure-3.6 The channel coding testing model
• Figure-3.7 The channel coding block
• Figure-3.8 Relative gain in Euclidian error for the pitch and gain fields

Glossary of Symbols and Abbreviations

AWGN

Additive White Gaussian Noise

BER

Bit Error Rate

BPSK

Binary Phase-Shift Keying

BSA

Binary Switching Algorithm

CDMA

Code Division Multiple Access

COSQ

Channel-Optimized Scalar Quantisation

COVQ

Channel-Optimized Vectorial Quantisation

DoD

The US Department of Defense

IA

Index Assignment

LPC

Linear Prediction Coding or Linear Prediction Coder

LTP

Long Term Prediction or Long Term Predictor

MORVQ

Modulation Organized Vector Quantisation

PN

Pseudo-random Noise

SAA

Simulated Annealing Algorithm

SOHC

Self-Organized Hyper Cube

SOM

Self-Organized Map

STP

Short Term Prediction or Short Term Predictor

TCENLP

Trained Code-Excited Non-Linear Predictor

Vocoder

Voice Coder

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