Frontmatter -- Contents -- Preface -- 1 Research into non-verbal aspects of speech -- 2 The construction of a scaling instrument -- 3 The evaluation experiment -- 4 Separation of the contributions of phonation and articulation to the radiated speech signal -- 5 Development of acoustic measures to explain perceptual ratings -- 6 Relations between acoustic measures and perceptual ratings -- 7 The status quo and perspectives -- Appendix I Development of an accurate closed glottis interval technique for inverse filtering -- References