Source-Filter theory Flashcards
Loudness is the subjective sensation of what?
intensity
What is a phon?
an equally loud contour compared to dB SPL at 1000 Hz
Pitch is the subjective sensation of what?
frequency
what is a mel?
measure of pitch
What is source theory of speech production?
theory that predicts the acoustic output of the speech system
In the source-filter theory, what is the source and what is the filter?
source = vocal folds filter = pharynx
What is Boyle’s law?
pressure and volume are inversely related
What is the basic rate of vibration of the vocal folds?
fundamental frequency
vibratory of the frequency of the vocal folds is dependent on…?
tension, elasticity, mass
How is amplitude of the voice adjusted?
subglottal pressure (increase muscle activity to increase resistance to airflow)
Increased amplitude without adjustment of muscle activity will lead to a higher…?
F0
What is the cover body theory of phonation?
changing the muscle activity of the laryngeal muscles will change the two layers of the vocal folds relative to each other to create different types of voice quality.
What is a low pitch-low amplitude example of the cover body theory of phonation?
weak contractions of the cricothyroid and vocalis (slack body and cover)
What is a mid pitch-high amplitude example of the cover body theory of phonation?
weak cricothyroid, strong vocalis (slack cover, stiff body)
what is jitter?
measure of variation of F0 from cycle to cycle
