COMD 5070 Final Exam | 122 Questions
and Answers 100% Correct | Latest
Update
what is science? what are the 4 features of the scientific
method? -
Correct Answer--empirical
-deterministic
-predictive
-parsimonious
what does it mean for science to be empirical? -
Correct Answer-based on data
what does it mean for science to be deterministic? -
Correct Answer-obeys physical laws
what does it mean for science to be predictive? -
Correct Answer-if you do this.... then that will happen
,what does it mean for science to be parsimonious? -
Correct Answer-uses the simplest explanation possible
how many semitones are in one octave? -
Correct Answer-12 semitones
how much sampling is enough? -
Correct Answer-sample at 2x the rate of the highest
frequency (e.g. data up to 5 kHz = sample at 10 kHz, data
up to 100 Hz = sample at 200 Hz)
what is the Nyquist frequency? -
Correct Answer-half the sample rate
if you want to go up one octave, you ______ the frequency. -
Correct Answer-double
if you want to go down one octave, you ______ the
frequency. -
Correct Answer-halve
what does a high pass filter do? -
Correct Answer-allows high frequencies through
what does a low pass filter do? -
Correct Answer-allows low frequencies through
what does a band pass filter do? -
Correct Answer-allows a band of frequencies through (mid)
, what does a band reject filter do? -
Correct Answer-holds back/attenuates a band of
frequencies (allows high and low frequencies)
what does a Fourier transform do? -
Correct Answer-creates a spectrum from the time domain
waveform (deconstructs the waveform)
what is the cake analogy to a Fourier transform? -
Correct Answer-analyze a cake to learn its ingredients
what does a time domain display show? -
Correct Answer--a waveform represents sound directly
-air pressure changes over time
what does a frequency domain display show? -
Correct Answer-a line spectrum shows the frequency
components of a periodic sound
what is a FFT spectrum? -
Correct Answer-fast Fourier transform
-shows harmonic energy
-each peak is a harmonic
-less clear at showing formants
what is FFT reveal more of? -
Correct Answer-vocal SOURCE
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