Phonation - Speech Production
- Three types of sound generated by larynx
- Transient
- Turbulent
- Quasi-periodic phonation
- Vibration of vocal folds
- Vertical phase difference
- What sustains vibration?
- Rate of vibration, fundamental frequency, and pitch
- Amplitude of vibration, sound pressure and loudness
Objectives
- Explain how transient and turbulent sounds are generated and identify which speech sounds these behaviors are associated with
- Describe one cycle of vocal fold vibration including the vertical phase difference
- Identify the minimum tracheal pressure required for phonation
- Describe the relation among rate of vibration, fundamental frequency, and pitch of the voice
- Explain why men generally have lower average fundamental frequencies than women
- Explain how stiffness of the vocal folds results in pitch changes in the voice
- Describe the external and internal forces used to alter stiffness of the vocal folds
- Describe two mechanisms for lowering vocal pitch
- Explain the relation between tracheal air pressure and sound pressure of the voice
- Describe how medial compression of the vocal folds affects sound pressure of the voice
Resources
|
