SHS 375 Mod 2 Complete Exam Questions with 100% Correct Answers
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Course
SHS 375
Institution
SHS 375
SHS 375 Mod 2 Complete Exam Questions with 100% Correct Answers
The following filter amplifies/passes components of an input signal with frequencies close to _________. - Answer- (the freq at the peak) 500 Hz
Filters and resonators __________ frequency components of input signals that do not...
SHS 375 Mod 2 Complete Exam
Questions with 100% Correct
Answers
The following filter amplifies/passes components of an input signal with frequencies
close to _________. - Answer- (the freq at the peak) 500 Hz
Filters and resonators __________ frequency components of input signals that do not
match their resonant frequencies. - Answer- attenuate
2: ______________have one resonance frequency but____________have many
resonance frequencies. - Answer- Helmholtz resonators, tubes
2: A mass-spring system with fr= 150 Hz has its stiffness increased by a factor of 9.
What is the new fr? - Answer- 450 Hz
2: An increase in length of a Helmholtz resonator _________the resonant frequency of
the resonator. - Answer- Decreases
2: An increase in volume of a Helmholtz resonator ________ the resonant frequency of
the resonator. - Answer- Decreases
2: How do increases in stiffness change the resonant frequency of a mass-spring? -
Answer- Increase the resonant frequency
2: A decrease in volume of a Helmholtz resonator _________the resonant frequency of
the resonator. - Answer- Increases
2: A spring-mass system has many resonant frequencies. - Answer- False
Filters and resonators __________frequency components of input signals that match
their resonant frequencies. - Answer- amplify/pass
Filters and resonators __________frequency components of input signals that do not
match their resonant frequencies. - Answer- attenuate
3: What is the frequency representation of a tube closed at one end with length=0.1 m,
and speed of sound = 340 m/s. - Answer- f1: 850
, f2: 1700
f3: 2550
3: What is the frequency representation of a Helmholtz Resonator with area=100 mm2,
volume= 6400 mm3, and length=100 mm, (speed of sound = 340000 mm/s). - Answer-
676.4 frequency
3: What is the frequency representation of a tube closed at one end with length=0.05 m,
and speed of sound = 340 m/s. - Answer- f1: 1700
f2: 3400
f3: 5100
3: What is the frequency representation of a Helmholtz Resonator with area=50 mm2,
volume= 3600 mm3, and length=200 mm, (speed of sound = 340000 mm/s). - Answer-
450.9
* According to the perturbation theory, the greater the degree of the constriction, the
greater the change in resonant frequency. - Answer- true
*According to the perturbation theory, a constriction between a pressure or velocity
maximum changes the frequency of the relevant resonance according to relative
magnitude of pressure or velocity at the point of constriction. - Answer- True
*According to the perturbation theory, the greater the degree of the constriction, the
greater the change in resonant frequency. - Answer- True
*A constriction near a maximum pressure point will generally raise the resonant
frequency. - Answer- true
*A constriction near a maximum velocity point will generally increase the resonant
frequency. - Answer- False
6: Vocal tract can be accurately modeled with a tube closed at one end. - Answer- true
*In the source-filter model, vocal fold vibration is the sound source component. -
Answer- true
**Characteristics of speech output depends on the characteristics of vocal folds only. -
Answer- false
6: In the source-filter model, vocal tract is the source component of the source-filter
model. - Answer- false
6: Vocal tract can be accurately modeled with a tube open at both ends. - Answer- false
The vocal tract can be closely modeled with a tube open at both ends. - Answer- False
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