Phonation - Speech Production
- Complex spectrum produced by vocal fold vibration
- Three voice registers - modal, pulse, loft
- Changes in laryngeal tone in running speech
- Fundamental frequency
- Sound pressure level
- Spectrum (voice quality)
- Changes in larynx with age
- Sex differences in laryngeal structure and function
- Disorders of the larynx
Objectives
- Describe the frequencies that make up the complex sound spectrum produced by the vibrating vocal folds (fundamental frequency and harmonics)
- Describe characteristics (vocal fold length and tension, rate of vibration, tracheal pressure) of modal, loft, and pulse phonation
- Describe how fundamental frequency and sound pressure level are changed in running speech (including muscles used)
- Explain how the laryngeal framework and position changes from infancy into adulthood
- Identify changes in larynx with aging
- Compare and contrast laryngeal structure and function in adult men and women
- Identify several disorders of the larynx including functional disorders, organic disorders, and neuromuscular disorders
- Explain how mass lesions of the vocal folds (such as nodules) affect vocal fold vibration and voice quality
Resources
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