ASLP 3030 UPDATED ACTUAL Exam
Questions and CORRECT Answers
1. What is a U-tube manometer and what does it measure? - CORRECT ANSWER -
measures the amount of force.
in speech we use cmH20 this is used to measure the force required to move water. During speech
research we can measure things using water columns. The person blows into the column and
pushes the water from 0 (pressure to be measured)down the column at 6cm. (atmospheric
pressure) Not good way to measure speech because different sounds require different amounts of
force.
1. How does intraoral air pressure differ for a stop and/or fricative consonant vs. a vowel
consonant? Which sound has intraoral pressure that is roughly equal to atmospheric pressure? -
CORRECT ANSWER - Vowel consonant has intraoral pressure that is roughly equal to
atmospheric pressure because the mouth is wide open so the pressure inside the mouth is the
same as the outside.
the pressure for fricatives is elevated intraoral pressure because you have to build up pressure for
sounds like /s/ /z/
With Stops the intra oral pressure is the highest because you need to have greater pressure to
develop sounds like /p/ and /t/
What is subglottal pressure? - CORRECT ANSWER - pressure below the vocal folds
Which sound has intraoral pressure that is roughly equal to subglottal pressure? - CORRECT
ANSWER - voiceless bilabial /p/
because when you do a voiceless sound you have to keep lips closed and generate pressure
behind lips but still have to leave your VF open
What value of subglottal pressure is normal when speaking at a typical, conversational volume? -
CORRECT ANSWER - 5-7 cm h2o typical for normal speech
15-20 comH20 for loud speech
, What is phonation threshold pressure? - CORRECT ANSWER - amount of pressure
required from to lungs in order to get the vf to oscililate. very softest a person can produce
Why would phonation threshold pressure be higher in speakers with voice disorders? -
CORRECT ANSWER - scaring or pathologies in mucosa (jelly/fluffy roll w air)they will
not have that consistency and require more air pressure to get them moving
it takes more for them to get airflow going to get the voice to oscillate
What is Ohm's law (i.e. can you describe the equation from your lecture notes, there will be no
math required in the test)? - CORRECT ANSWER - E=IR
e:voltage (subglottic pressure,driving force)
i:current(flow of air through larynx)
r:resistance(when vf adduct they provide resistance)
if we can calculate airflow and pressure changes we can infer things about the vocal folds
How does a pneumotachograph generate a measurement of airflow? - CORRECT
ANSWER - measures pressure, you can have someone blow on a tube and measure the
pressure in the at the begining and end of the tube (both sisdes)and putting a resistance in the
middle. then you get the differential pressure, and this increases w FLOW.
upstream=higher pressure
downstream=lower pressure
What were the two examples of clinical aerodynamic measurements that can be taken without
using any specialized equipment? - CORRECT ANSWER - Maximum phonation time
MPT (how long you can say aaah) which tell you a little about the larynx
s/z ratio where you sustain a sound that doesnt have vf closure and diving those two
Questions and CORRECT Answers
1. What is a U-tube manometer and what does it measure? - CORRECT ANSWER -
measures the amount of force.
in speech we use cmH20 this is used to measure the force required to move water. During speech
research we can measure things using water columns. The person blows into the column and
pushes the water from 0 (pressure to be measured)down the column at 6cm. (atmospheric
pressure) Not good way to measure speech because different sounds require different amounts of
force.
1. How does intraoral air pressure differ for a stop and/or fricative consonant vs. a vowel
consonant? Which sound has intraoral pressure that is roughly equal to atmospheric pressure? -
CORRECT ANSWER - Vowel consonant has intraoral pressure that is roughly equal to
atmospheric pressure because the mouth is wide open so the pressure inside the mouth is the
same as the outside.
the pressure for fricatives is elevated intraoral pressure because you have to build up pressure for
sounds like /s/ /z/
With Stops the intra oral pressure is the highest because you need to have greater pressure to
develop sounds like /p/ and /t/
What is subglottal pressure? - CORRECT ANSWER - pressure below the vocal folds
Which sound has intraoral pressure that is roughly equal to subglottal pressure? - CORRECT
ANSWER - voiceless bilabial /p/
because when you do a voiceless sound you have to keep lips closed and generate pressure
behind lips but still have to leave your VF open
What value of subglottal pressure is normal when speaking at a typical, conversational volume? -
CORRECT ANSWER - 5-7 cm h2o typical for normal speech
15-20 comH20 for loud speech
, What is phonation threshold pressure? - CORRECT ANSWER - amount of pressure
required from to lungs in order to get the vf to oscililate. very softest a person can produce
Why would phonation threshold pressure be higher in speakers with voice disorders? -
CORRECT ANSWER - scaring or pathologies in mucosa (jelly/fluffy roll w air)they will
not have that consistency and require more air pressure to get them moving
it takes more for them to get airflow going to get the voice to oscillate
What is Ohm's law (i.e. can you describe the equation from your lecture notes, there will be no
math required in the test)? - CORRECT ANSWER - E=IR
e:voltage (subglottic pressure,driving force)
i:current(flow of air through larynx)
r:resistance(when vf adduct they provide resistance)
if we can calculate airflow and pressure changes we can infer things about the vocal folds
How does a pneumotachograph generate a measurement of airflow? - CORRECT
ANSWER - measures pressure, you can have someone blow on a tube and measure the
pressure in the at the begining and end of the tube (both sisdes)and putting a resistance in the
middle. then you get the differential pressure, and this increases w FLOW.
upstream=higher pressure
downstream=lower pressure
What were the two examples of clinical aerodynamic measurements that can be taken without
using any specialized equipment? - CORRECT ANSWER - Maximum phonation time
MPT (how long you can say aaah) which tell you a little about the larynx
s/z ratio where you sustain a sound that doesnt have vf closure and diving those two
