COMD 5070 Final Exam |Study Questions with complete Solution| Verified Answers
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Course
Comd 5070
Institution
Comd 5070
What are the direct measures of subglottal pressure? - ANSWER tracheal puncture,
esophageal pressure/balloon
-make a hole in the trachea below the larynx and put a pressure transducer in the trachea
-not for the faint of heart
COMD 5070 Final Exam |Study
Questions with complete Solution|
Verified Answers
What are the direct measures of subglottal pressure? - ANSWER tracheal puncture,
esophageal pressure/balloon
-make a hole in the trachea below the larynx and put a pressure transducer in the trachea
-not for the faint of heart
-give direct, accurate measures during speech - ANSWER tracheal puncture
-swallow sensor partway into esophagus
-measures the pressure on the shared wall of the trachea and esophagus
-pressure is lower than lung pressure
-not very practical or common - ANSWER Esophageal pressure/balloon
How do we estimate subglotta pressure? - ANSWER measure intraoral pressure at a particular
time (during /p/ closure)
What happens if we change subglottal pressure? - ANSWER voice intensity changes
, How do we calculate average air flow? - ANSWER volume divided by time
How do pressure, air flow and resistance relate? - ANSWER Pressure=Flow x Resistance
Pressure drops across the glottis, for a given pressure higher resistance = lower flow and
lower resistance = higher flow. pressure and resistance and flow are all linearly related -
ANSWER Ohm's law
What determines how much air flows through the larynx? - ANSWER resistance (how tightly we
adduct the vocal folds) and pressure (how hard we pump air with lungs)
How can we compute an estimate of laryngeal resistance? - ANSWER measure flow, estimate
Psub and calculate estimated laryngeal resistance by dividing Psub by flow
Larynx is the sound source, the output is sent into the vocal tract. The vocal tract is the filter. In
theory, the two systems should be able to operate independent of each other, but there are
circumstances under which they interact - ANSWER source-filter theory
What are examples of a change to the source? - ANSWER loudness (less lung pressure to speak
softly), pitch (stretch the vocal folds to raise frequency), voice quality (adjust space between
vocal folds--larger space=breathy voice)
What are examples of a change to the filter? - ANSWER differences in vocal tract tube affect
resonant frequencies, specific features change depending on constriction locations,
movement of tongue and other articulators
as you lower the jaw and tongue, you _____________ the F1 frequency - ANSWER increase
Which location of vowels has the lowest F1 frequency? - ANSWER high front vowel
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