Bernoulli Phonation/ Vocal registers

vocal attack (ready)

approximate vocal folds in the stream of airflow

simultaneous vocal attack

adduction and onset of respiration occur simultaneously

breathy vocal attack

airflow starts prior to adduction

glottal attack

adduction occurs prior to airflow

sustained phonation (go)

hold folds in fixed position in airstream and actual vibration results

terminate phonation (stop)

abduct vfs, no use of extrinsic muscles, vfs in position

modal register

pattern of phonation used in daily conversation

what is primary frequency?

fundamental frequency

glottal fry

short, thick, low subglottal pressure resulting in low air frequency

falsetto

vfs lengthen, thin; brief contact, reduced amplitude; decreased length of vibrating surface and increase frequency

pressed

increased medial compression

breathy

vfs inadequately approximated

whispering

not phonation, but still requires movement