ASLP 3030: TEST #2
What is a U-tube manometer and what does it measure? - ANS-- Used for people to blow air in
the manometer to move the water on the other side of the manometer
- measures the force (the air pressure) that is required to move water, cmH2O
How does intraoral air pressure differ for a stop and/or fricative consonant vs. a vowel
consonant? - ANS--For vowels the pressure is the same fro your mouth and the microphone
- For fricatives you have to build pressure behind constriction, will be elevated
- For stop consonants the pressure is the highest because you close the vocal tracts and
releasing the highest amount of pressure built.
Which sound has intraoral pressure that is roughly equal to atmospheric pressure? - ANS-Vowel
consonants
What is subglottal pressure? - ANS--The amount of energy that you can generate below your
vocal folds (larynx)
- the driving pressure for phonation and speech
-hard to measure
Which sound has intraoral pressure that is roughly equal to subglottal pressure? - ANS-bilabial
plosive /p/
What value of subglottal pressure is normal when speaking at a typical, conversational volume?
- ANS-5-7 cmH20
What is phonation threshold pressure? - ANS--the amount of pressure that is required from the
lungs in order to get the vocal folds to oscillate at the safest a person can produce
- need 3-5cmH20 to start vibrating
- PTP increases with dehydration (wont be able to produce oscillation at a low level) and vocal
fatigue (get swollen, puffy, and bulky, need more pressure to vibrate)
Why would phonation threshold pressure be higher in speakers with voice disorders? - ANS--
folds are looser for easy onset
- folds are stiffer
- threshold pressure will be higher for abrupt start
- vocal fold regions increase in mass
- many lesions stiffen the mucosa
What is Ohm's law - ANS-used to describe the relationship between voltage and current and
resistance
-in SLP, it describes the relationship between the sub glottal pressure the flow of air through the
larynx and resistance
What is a U-tube manometer and what does it measure? - ANS-- Used for people to blow air in
the manometer to move the water on the other side of the manometer
- measures the force (the air pressure) that is required to move water, cmH2O
How does intraoral air pressure differ for a stop and/or fricative consonant vs. a vowel
consonant? - ANS--For vowels the pressure is the same fro your mouth and the microphone
- For fricatives you have to build pressure behind constriction, will be elevated
- For stop consonants the pressure is the highest because you close the vocal tracts and
releasing the highest amount of pressure built.
Which sound has intraoral pressure that is roughly equal to atmospheric pressure? - ANS-Vowel
consonants
What is subglottal pressure? - ANS--The amount of energy that you can generate below your
vocal folds (larynx)
- the driving pressure for phonation and speech
-hard to measure
Which sound has intraoral pressure that is roughly equal to subglottal pressure? - ANS-bilabial
plosive /p/
What value of subglottal pressure is normal when speaking at a typical, conversational volume?
- ANS-5-7 cmH20
What is phonation threshold pressure? - ANS--the amount of pressure that is required from the
lungs in order to get the vocal folds to oscillate at the safest a person can produce
- need 3-5cmH20 to start vibrating
- PTP increases with dehydration (wont be able to produce oscillation at a low level) and vocal
fatigue (get swollen, puffy, and bulky, need more pressure to vibrate)
Why would phonation threshold pressure be higher in speakers with voice disorders? - ANS--
folds are looser for easy onset
- folds are stiffer
- threshold pressure will be higher for abrupt start
- vocal fold regions increase in mass
- many lesions stiffen the mucosa
What is Ohm's law - ANS-used to describe the relationship between voltage and current and
resistance
-in SLP, it describes the relationship between the sub glottal pressure the flow of air through the
larynx and resistance
