Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 83. Chapters: Cough drops, Human voice, Vocal folds, Larynx, Phonation, Voice analysis, Vocal loading, Human pharynx, Glottis, Formant, Voice frequency, Throat, Reverse speech, Palatine uvula, Speech disorder, Streptococcal pharyngitis, Palatine tonsil, Estill Voice Training, Vocal pedagogy, List of stutterers, Falsetto, Lombard effect, Voice therapy, Cluttering, Histology of the vocal folds, Gag Factor, Head voice, Grunting, Whistle register, Voice onset time, Speech production, Donald Duck talk, Ricola, Chest voice, Throat irritation, Smith Brothers, Gay lisp, Nasality, Recurrent laryngeal nerve, Laryngitis, Epiglottis, Dysphonia, Halls, Alaryngeal speech, Esophageal speech, Cluttered speech, Vocal apparatus, Laryngeal cleft, Electroglottograph, Speech Transmission Index, Strepsils, Falsettone, Vocalise, Centor criteria, Fisherman's Friend, Arytenoid cartilage, Parapharyngeal space, Isthmus of the fauces, Alcons, Vigroids, Vocalzone Throat Pastilles, Piriform sinus, Laryngology, Voice projection, Electropalatography, Mechanical larynx, Pharyngeal reflex, Luden's, Superior laryngeal nerve, Throat lozenge, C pacol, Nasalance, Gorpils, Puberphonia, Aryepiglottic fold, Ventricle of the larynx, Nasometry, Vocal tract, Presbylarynx, Infraglottic cavity, Appendix of the laryngeal ventricle, Ultravoice, Bogart-Bacall syndrome, Epiglottic vallecula, Vocal effort, Vocal rest, Tunes, Victory V, Lockets, Whisper triangle, Vocal spray. Excerpt: Estill Voice Training (often abbreviated EVT) is a programme for developing vocal skills based on deconstructing the process of vocal production into control of specific structures in the vocal mechanism. By acquiring the ability to consciously move each structure the potential for controlled change of voice quality is increased. British speech and language therapist Sara Harris writes: The system wa...