COMD 5070 Final Exam Questions and Answers
Solved
neither invariant nor linear -ANSWER- The speech signal is
perceptual normalization -ANSWER- When a listener simplifies the processing of the
speech signal to smooth out superfluous variability, it is called
categorical perception -ANSWER- One type of quantal perception that occurs as we
listen to speech is called
syllable components are presented separately, but simultaneously, to each ear -
ANSWER- In duplex perception:
the place and/or manner of articulation is perceived to change -ANSWER- In the
McGurk effect:
using contextual, linguistic, and cognitive cues -ANSWER- Top-down processing in the
perception of speech involves
motor theory -ANSWER- Which speech perception theory has been criticized as being
so vague that it is more of a philosophy than a theory or model?
perceptual magnets -ANSWER- enhance differences between distinct phonemes
Cohort theory -ANSWER- based on similarity of acoustic features of the beginning of
words
dominant language exposure gradually decreases discrimination of non-native speech
features -ANSWER- research with infants has shown that
a refinement of everyday thinking -ANSWER- What is science?
empirical, deterministic, predictive, parsimonious -ANSWER- What are the 4 features of
the scientific method?
semitone -ANSWER- A nonlinear increase in frequency as you go from low to high
12 -ANSWER- How many semitones are in one octave?
5.9% -ANSWER- There are ________ more semitones in the octave before the last
, Sampling rate -ANSWER- the frequency with which numbers are stored or written down
to represent the analog signal that you're sampling.
the higher the sampling rate, the better the playback quality -ANSWER- How does
sampling rate relate to playback quality?
Nyquist frequency -ANSWER- The highest frequency the can be reproduced- or the
highest sampling rate
high pass filter -ANSWER- allows high frequencies through and holds back lower
frequencies
low pass filter -ANSWER- blocks high frequencies. The best way to avoid aliasing
during a digital recording.
band pass filter -ANSWER- allows a band of frequencies though and holds back both
higher and lower frequencies
band reject filter -ANSWER- holds back a band of frequencies and allows both higher
and lower frequencies through
frequency domain -ANSWER- a line spectrum shows the frequency components of a
period sound
time domain -ANSWER- a waveform represents sound directly, air pressure changes
over time
FFT spectrum -ANSWER- -clearly shows harmonic energy
-each peak is a harmonic
-less clear at showing formants
-more revealing of source
LPC Spectrum -ANSWER- -shows spectral envelope
-good at revealing formants
-does not show harmonics
-more revealing of filter
time, frequency, intensity -ANSWER- In a 3D spectogram, the x-axis represents
_________, the y-axis represents ____________, and the darkness represents
________________
Solved
neither invariant nor linear -ANSWER- The speech signal is
perceptual normalization -ANSWER- When a listener simplifies the processing of the
speech signal to smooth out superfluous variability, it is called
categorical perception -ANSWER- One type of quantal perception that occurs as we
listen to speech is called
syllable components are presented separately, but simultaneously, to each ear -
ANSWER- In duplex perception:
the place and/or manner of articulation is perceived to change -ANSWER- In the
McGurk effect:
using contextual, linguistic, and cognitive cues -ANSWER- Top-down processing in the
perception of speech involves
motor theory -ANSWER- Which speech perception theory has been criticized as being
so vague that it is more of a philosophy than a theory or model?
perceptual magnets -ANSWER- enhance differences between distinct phonemes
Cohort theory -ANSWER- based on similarity of acoustic features of the beginning of
words
dominant language exposure gradually decreases discrimination of non-native speech
features -ANSWER- research with infants has shown that
a refinement of everyday thinking -ANSWER- What is science?
empirical, deterministic, predictive, parsimonious -ANSWER- What are the 4 features of
the scientific method?
semitone -ANSWER- A nonlinear increase in frequency as you go from low to high
12 -ANSWER- How many semitones are in one octave?
5.9% -ANSWER- There are ________ more semitones in the octave before the last
, Sampling rate -ANSWER- the frequency with which numbers are stored or written down
to represent the analog signal that you're sampling.
the higher the sampling rate, the better the playback quality -ANSWER- How does
sampling rate relate to playback quality?
Nyquist frequency -ANSWER- The highest frequency the can be reproduced- or the
highest sampling rate
high pass filter -ANSWER- allows high frequencies through and holds back lower
frequencies
low pass filter -ANSWER- blocks high frequencies. The best way to avoid aliasing
during a digital recording.
band pass filter -ANSWER- allows a band of frequencies though and holds back both
higher and lower frequencies
band reject filter -ANSWER- holds back a band of frequencies and allows both higher
and lower frequencies through
frequency domain -ANSWER- a line spectrum shows the frequency components of a
period sound
time domain -ANSWER- a waveform represents sound directly, air pressure changes
over time
FFT spectrum -ANSWER- -clearly shows harmonic energy
-each peak is a harmonic
-less clear at showing formants
-more revealing of source
LPC Spectrum -ANSWER- -shows spectral envelope
-good at revealing formants
-does not show harmonics
-more revealing of filter
time, frequency, intensity -ANSWER- In a 3D spectogram, the x-axis represents
_________, the y-axis represents ____________, and the darkness represents
________________
