326 Final Exam Cumulative Info

Spectrography

a method of identifying frequency, amplitude and duration of sounds; capture and analyze speech

PRAAT

what is a free program for spectral analysis?

Sound

a disturbance that creates changes in pressure in a gas, liquid, or a solid. the vibrating body causes the medium around it to vibrate. vibrations in air are called traveling longitudinal waves which we can hear.

Displacement of Molecules --> back to state of rest(elasticity) --> move beyond state of rest(inertia) --> back to resting position(elasticity) --> movement slows every cycle(damping) --> back to state of rest

what are the factors that affect sound traveling through air and wave motion?

closed glottis --> subglottal air pressure increases --> vocal folds are forced apart --> vocal folds adduct b/c of elasticity and the bernoulli principle --> REPEAT

describe the myoelastic aerodynamic theory of phonation

Bernoulli Principle

when air passing through a channel increases in velocity, and decreases in pressure, objects want to move to the area of low pressure