I-X -- Introduction -- CHAPTER 1 Articulatory and Acoustic Studies of the Timing of Voicing in Obstruents -- CHAPTER 2 Modelling Phonetic Variability in Speech Production -- CHAPTER 3 Experiment 1 -- CHAPTER 4 Experiment 2 -- CHAPTER 5 Discussion -- Conclusion -- APPENDIX A -- Appendix Β -- Appendix C -- Appendix D -- References -- Name Index -- 290