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COMD-5070 Exam 1 Flashcards | StudBud
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COMD-5070 Exam 1
COMD-5070 Exam 1
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1
Frequency difference limens are the...
term used to describe the spatial distribution of sound waves.
range of audible frequencies in the human ear
subtracted frequencies of multiple tones
smallest detectable change in frequency
2
According to the Nyquist frequency, if you want to record data up to 100 Hz, you should sample at a rate of ______
200 Hz
50 Hz
1000 Hz
100 Hz
3
_______ is when when same waves are added & amplitude increases
Positive interference
Desctructive interference
Constructive interference
Negative interference
4
What is a reason (from the lectures) for using technology in clinical practice?
You get paid more
You can provide biofeedback to client
You can describe severity subjectively
You should not use evidence-based practice (EBP)
5
1 hertz = 1 ____ per second
vibration
kHz
oscillation
wave
6
The absolute intensity of a sound measured in decibels relative to the absolute threshold of the listener is measured in
dB IL
dB HL
dB SL
dB SPL
7
Whole number multiples of the fundamental frequency are called...
harmonics
duplicates
additional waveforms
corresponding waves
8
The inverse square law states that sound diminishes in proportion to the ______ of the distance from the source
amplitude
harmonics
square
opposite
9
An octave contains ____ semitones
8
14
12
10
10
During rarefaction, the pressure ____
stays the same
rises
drops
11
Fundamental frequency + Harmonics = ________
Periodic waveform
Numerous corresponding tones
Aperiodic sound
Combined interference
12
Which of the following is not a type of sound level meter weighting?
dBD
dBC
dBA
dbZ
13
Aural beats are when two ____ sine waves combine
opposite
complex
identical
very similar
14
3-bit resolution means that there are ___ possible amplitude values in binary.
27
8
9
3000
15
The ear canal resonates around ____.
300 Hz
30 Hz
3 kHz
30 kHz
16
What factor would increase a natural resonant frequency?
Shape
Inertia
Mass
Recoil
17
Lower frequencies travel farther along the basilar membrane
False
True
18
Phase has no perceptual quality.
False
True
19
20 dB + 20 dB = 40 dB
True
False
20
Decibels are...
logarithmic
linear
21
The simplest tone is called a....
Simple wave
Complex tone
Single tone
Sine wave
22
Loudness can be measured by equipment
False
True
23
Which of the following is NOT a feature of loud speech?
More forceful vocal fold collisions
Larger articulator movements
Release of subglottic pressure
Consonant burst release strength increases
24
The human hearing frequency range is...
20 to 20,000 Hz
20 to 20,000 kHz
200 to 20,000 Hz
200 to 20,000 kHz
25
Which of the following is true about pitch?
It is not linked to frequency
It cannot be ordered on a musical scale
It is subjective
It can be measured with instruments
26
What is log
10
of 1000?
3
10
100
4
27
Lower frequency = _______ wavelength
Longer
Shorter
28
Find the dB SPL: A car passing by has pressure of 100,000 uPa
66 dB
74 dB
82 dB
100 dB
29
A VRP measures dynamic range across a person’s fundamental frequency range
False
True
30
Which of the following does not describe aperiodic sounds?
Numerous sine wave frequencies
No repeating pattern at all
Absence of noise
No mathematical relationship
31
______ is the act of molecules being stretched apart
Amplitude
Compression
Rarefaction
Expansion
32
_______ is the gradual extinguishing of a sound.
Decrescendo
Damping
Diminuendo
Decrease
33
Sine waves have molecules that move back & forth at a constant rate AND equal distance.
True
False
34
The _____ helps direct sound into the ear.
pinna
stapes
incus
concha
35
What phenomenon may take place when we remove a fundamental?
Frequency increase
Harmonic distortion
Residue pitch
Chord amplification
36
Which one is NOT an example of a transverse wave?
stadium or human wave
ripples on the surface of the water
the vibration of a spring
vibrations in a guitar string
37
During sound transmission, sounds take this path through the ear: eardrum, malleus, incus, ____, and finally the cochlea
auditory nerve
stapes
eustachian tube
concha
38
Which of the following is not an example of a common analog device?
Cassette recorder
Mercury thermometer
Clock/watch with hands
Standard light switch
39
The human voice is fully periodic.
True
False
40
What is the period of a 150 Hz sine wave?
6 ms
2.5 minutes
.15 kHz
1/150th of a second
41
If the period is 5 ms, what is the frequency?
200 Hz
500 Hz
5 hZ
.2 kHz
42
The oval window is _____ the size of the tympanic membrane.
1/50th
1/40th
1/20th
1/30th
43
The distance from peak to the next peak is called...
Vibration
Oscillation
Frequency
Wavelength
44
RMS stands for...
Recurrent Masking Suppression
Resonance Magnitude Spectrum
Root Mean Square
Relative Modulation Sensitivity
45
The nature of science is NOT.....
Circumstancial
Parsimonious
Empirical
Deterministic
