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COMD 5070 EXAM WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS |FREQUENTLY TESTED QUESTIONS AND SOLUTIONS |ALREADY GRADED A+|NEWEST|GUARANTEED PASS |LATEST UPDATE$17.99
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COMD 5070 EXAM 2 2024-2025 WITH
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS
AND SOLUTIONS |ALREADY GRADED
A+|NEWEST|GUARANTEED PASS
|LATEST UPDATE
What is the source-filter theory
-larynx serves as source and the vocal tract is filter
**independent of each other
What are the different source changes
-loudness
-pitch
-voice quality
-phonation vs. whispering
How do you change the loudness of the source
-provide more pressure from the lungs to the larynx
How do you change the pitch of the source
-stretching the vocal folds which changes the intensity of how the vibrate
how do you change the voice quality of the sound source
- adjusting the space between the vocal folds
*specifically between the arytenoids
Whispering
-no vibration but still a sound source from using air from lungs
what is a harmonic spectral slope
1|Page
,Higher harmonics progressively slope because they are weaker in amplitude then the fundamental
What does the vocal tract filter do?
-weakens what comes out of larynx
- resonates 'echos' sound
-some sine waves add
-constructive interference
What is the vocal tract transfer function
-change in sound between entering the vocal tract and leaving the vocal tract
(new sound- old sound)
What influences is?
resonating cavities in the vocal tract between the larynx and the lips
***VARIABLE FILTER
What is a formant
a resident peak in the vocal tract transfer function
How do formants change during speech?
some frequencies in a given range are amplified in their amplitude and are more prominent than any
other sounds in the spectrum
*reflects the way the vocal tract is shaping the sound that the larynx gave to it*
How do formants differ for men women and children
-Men's vocal tracts are largest which alternates the frequencies
-Children have highest formant frequencies (smallest structures)
place, manner and voicing of stops
place: bilabial
manner: brief closure of the vocal tract
voicing: voiced or voiceless
transition of stops
vocal tract adjusts for next sound.
transient and friction of stops
-air pressure builds behind closure
-transient- first burst of air
-frication-air flows through narrow gap
**often hard to seperate
VOT for /b/ /d/ /g/
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, -20 to +20ms
VOT for voiceless stops
20-100ms
duration of a CV transition
about 50ms
what does F1 relate to
mouth opening
C to V transition
F1 will increase
place of articulation determines
spectral shape
fricatives
longer than stops
affricates
shorter than fricative, longer then stop
What is another name for volume velocity
Air flow
How do you calculate the average air flow (volume velocity)
volume/time
What is a u-tube manometer
A tube in the shape of a 'U' that is used to measure pressure and can be used to calibrate electronic
equipment to measure pressure.
How does a u-tube manometer work?
Pressure will displace the water and the displacement can then be measured by measuring the
difference in height
What is a u-tube manometer best used for?
Calibrations of equipment and measuring static pressure
What are the limitations of a manometer
Measuring speech production where the pressure goes up and down rapidly.
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