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COMD 5070 EXAM 2 | 2025-2026 LATEST UPDATED | ACTUAL
EXAM QUESTIONS WITH SOLUTIONS | 100% RATED
CORRECT | 100% VERFIED SOLTIONS | ALREADY GRADED
A+
How to calculate average air flow - (answer)divide volume by time
ex. if 1 liter of air is used and phonation lasts for 5 seconds, average flow is 1/5
liter per second
(keep in mind that flow at a given instant may be different)
u-tube manometer - (answer)measures static pressure (as opposed to dynamic)
very low tech
not very good for speech production (because pressures change rapidly and subtly)
handy for calibration
measures in cmH2O (how many cm of water is displaced by the pressure)
rib cage and abdomen movements - (answer)inhale: rib cage and abdomen expand
exhale: rib cage and abdomen contract
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measured by variable inductance plethysmograph
rib cage and abdomen movements during singing - (answer)movement increases
rapidly during inhalation and drops more gradually during exhalation
- minimum resistance when inhaling
- when exhaling, phonation slows down the speed with which air leaves the lungs
rib cage and abdomen movements during speech - (answer)exhalation is slower
than inhalation (laryngeal resistance slows down the flow of air as it leaves your
lungs)
subglottal pressure - (answer)Ps or Psub
pressure below the larynx
driving pressure for phonation, speech
difficult to measure directly
normal speech values of subglottal pressure - (answer)5-7 cmH2O
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very loud: 15-20 cmH2O
lower for pulse register
higher for falsetto
estimating subglottal pressure - (answer)measure intraoral pressure at a particular
time (during /p/ closure)
- vocal folds are abducted
- trachea and mouth are linked
- pressure is equal throughout the system
phonation threshold pressure - (answer)pressure needed from the lungs for folds to
start vibrating
- between 3-5 cm needed to start, less to maintain
influences on PTP (phonation threshold pressure) - (answer)increases with:
- dehydration
- vocal fatigue
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- many pathologies
folds are looser for easy onset, stiffer for harsh onset (PTP will be higher for abrupt
start)
vocal fold lesions increase mass, requiring more pressure to move
pressure (definition) - (answer)force per unit area
flow (definition) - (answer)volume divided by time
technical term for airflow - (answer)volume velocity
when is oral pressure higher or lower during speech? - (answer)highest for stops
quite high for fricatives
zero for vowels and diphthongs
Ohm's law - (answer)E = IR
COMD 5070 EXAM 2 | 2025-2026 LATEST UPDATED | ACTUAL
EXAM QUESTIONS WITH SOLUTIONS | 100% RATED
CORRECT | 100% VERFIED SOLTIONS | ALREADY GRADED
A+
How to calculate average air flow - (answer)divide volume by time
ex. if 1 liter of air is used and phonation lasts for 5 seconds, average flow is 1/5
liter per second
(keep in mind that flow at a given instant may be different)
u-tube manometer - (answer)measures static pressure (as opposed to dynamic)
very low tech
not very good for speech production (because pressures change rapidly and subtly)
handy for calibration
measures in cmH2O (how many cm of water is displaced by the pressure)
rib cage and abdomen movements - (answer)inhale: rib cage and abdomen expand
exhale: rib cage and abdomen contract
,2|Page
measured by variable inductance plethysmograph
rib cage and abdomen movements during singing - (answer)movement increases
rapidly during inhalation and drops more gradually during exhalation
- minimum resistance when inhaling
- when exhaling, phonation slows down the speed with which air leaves the lungs
rib cage and abdomen movements during speech - (answer)exhalation is slower
than inhalation (laryngeal resistance slows down the flow of air as it leaves your
lungs)
subglottal pressure - (answer)Ps or Psub
pressure below the larynx
driving pressure for phonation, speech
difficult to measure directly
normal speech values of subglottal pressure - (answer)5-7 cmH2O
,3|Page
very loud: 15-20 cmH2O
lower for pulse register
higher for falsetto
estimating subglottal pressure - (answer)measure intraoral pressure at a particular
time (during /p/ closure)
- vocal folds are abducted
- trachea and mouth are linked
- pressure is equal throughout the system
phonation threshold pressure - (answer)pressure needed from the lungs for folds to
start vibrating
- between 3-5 cm needed to start, less to maintain
influences on PTP (phonation threshold pressure) - (answer)increases with:
- dehydration
- vocal fatigue
, 4|Page
- many pathologies
folds are looser for easy onset, stiffer for harsh onset (PTP will be higher for abrupt
start)
vocal fold lesions increase mass, requiring more pressure to move
pressure (definition) - (answer)force per unit area
flow (definition) - (answer)volume divided by time
technical term for airflow - (answer)volume velocity
when is oral pressure higher or lower during speech? - (answer)highest for stops
quite high for fricatives
zero for vowels and diphthongs
Ohm's law - (answer)E = IR
