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