An Efficient tone classifier for speech recognition of Cantonese.

by Cheng Yat Ho.Thesis (M.Phil.)--Chinese University of Hong Kong, 1991.Bibliography: leaves 106-108.Chapter Chapter 1 --- Introduction --- p.1Chapter Chapter 2 --- Preliminary Considerations --- p.8Chapter 2.1 --- Tone System of Cantonese --- p.8Chapter 2.2 --- Tone Classification Systems --- p.14Chapter 2.3 --- Design of a Speech Corpus --- p.17Chapter Chapter 3 --- Feature Parameters for Tone Classification --- p.22Chapter 3.1 --- Methodology --- p.22Chapter 3.2 --- Endpoint Detection and Time Alignment --- p.23Chapter 3.3 --- Pitch --- p.27Chapter 3.3.1 --- Pitch Profile Extraction --- p.28Chapter 3.3.2 --- Evaluation of Pitch Profile --- p.33Chapter 3.3.3 --- Feature Parameters Derived from Pitch Profile --- p.40Chapter 3.4 --- Duration --- p.46Chapter 3.5 --- Energy --- p.49Chapter 3.5.1 --- Energy Profile Extraction --- p.49Chapter 3.5.2 --- Evaluation of Energy Profile --- p.50Chapter 3.6 --- Summary --- p.54Chapter Chapter 4 --- Implementation of the Tone Classification System --- p.56Chapter 4.1 --- Intrinsic Pitch Estimation --- p.59Chapter 4.2 --- The Classifier --- p.63Chapter 4.2.1 --- Neural Network --- p.64Chapter 4.2.2 --- Post-Processing Unit --- p.74Chapter Chapter 5 --- Performance Evaluation on the Tone Classification System --- p.76Chapter 5.1 --- Single Speaker Tone Classification --- p.77Chapter 5.2 --- Multi-Speaker and Speaker Independent Tone Classification --- p.82Chapter 5.2.1 --- Classification with no Phonetic Information --- p.83Chapter 5.2.2 --- Classification with Known Final Consonants --- p.88Chapter 5.3 --- Confidence Improvement of the Recognition Results --- p.95Chapter 5.4 --- Summary --- p.101Chapter Chapter 6 --- Conclusions and Discussions --- p.102References --- p.106Chapter Appendix A --- Vocabulary of the Speech Corpus --- p.A1-A4Chapter Appendix B --- Statistics of the Pitch Profiles --- p.Bl-Bl5Chapter Appendix C --- Statistics of the Energy Profiles --- p.Cl-Cl1RESULT