CSD-2259 Lecture Notes - Lecture 11: Direct Air, Cleft Lip And Cleft Palate, Otorhinolaryngology

• School: App State
• Department: Communication Sciences and Disorders
• Course: CSD-2259
• Professor: Joe Klein

Document Summary

Voice is the complex, dynamic product of vocal fold vibration that allows us to vocalize (make sounds) and verbalize (produce language through speech. : essential tool for speech, communication, and personal expression. Human voice resides in the vibratory patterns of the larynx"s tiny vocal folds, known as phonation. Our voices arise from the complex interaction of three vocal characteristics: frequency, intensity, and phonatory quality: frequency: the rate of vocal fold vibration, expressed as cycles per second (hertz / hz) An objective, physical measurement of vibratory rate as opposed to pitch, which is the psychological or perceptual equivalent. When vocal cords vibrate, they do so at several different frequencies simultaneously. Fundamental frequency (f0) : arithmetic mean of the rates of vibration for the vocal folds, Men: 120-140 hz: 3 characteristics of the vocal folds: Mass: thicker contribute to a lower f0. Tension: greater tension contributes to higher f0: difference between length and lengthened vocal folds.