EMT 3 Flashcards
Characteristics of Thin Folds
May occur naturally at higher pitches When TVF are elongated, and/or during soft voicing.
Less cover flexibility and/or less breath result in vibration without the lower-to-upper ripple,
Thin or shallow depth of contact
Shorter closed phase
Engagement of cricothyroid to Tilt thyroid cartilage
Characteristics of Thick folds
Shorter
Pliant in Cover
Longer closed phase- thick depth of contact
Mucosal wave- folds ripple from lower to upper border
some contraction/muscle tone in the vocalis muscle
What is Bernoulli’s principle
TVFs are adducted (brought together) near the mid-line of the larynx with the edges close enough for the breath stream to suck them together and then blow them apart. Causes TVF vibration
What are the characteristics of stiff folds
May occur naturally at higher pitches.
Associated with falsetto.
The TVFs are elongated, pulled taut, and positioned slightly away from the midline. Change of plane- TVFs higher at the back
arytenoid cartilages may rock back lifting the vocal process
There is little or no contact during vibration.
The tone may or may not be breathy
Characteristics of Slack folds
Glottal fry/ creak Body and cover are loose Unique vibratory pattern- pulses of sound energy Short folds? Can facilitate FVF constriction
Why is it called figures for voice
Estill compared mastery of control of TVF edge with that of the compulsory demonstration of control of the edges of the skate blade(figures) in figure skating. Control of the vocal fold edges are every bit as important to singers and speakers
Why do we need Body Cover control
- consistent quality throughout the range (avoiding breaks)
- consistent loudness through the range by change of TVF: Body-Cover condition
- planned voicing breaks (‘cracking’ with emotion, yodeling)
- sudden intensity changes for dramatic/musical effect
- changes in intensity to preserve the stress patterns of words in son
