COMD 5070 Spectra - FFT, LPC Test Questions and Answers 100% Verifed
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Course
COMD 5070
Institution
COMD 5070
What are the two spectrum discussed in this class? - CORRECT- ANSWER-FFT and LPC
What does FFT stand for? - CORRECT- ANSWER-fast Fourier transform
What does a FFT spectrum show us? - CORRECT- ANSWER-shows us the range of harmonics that are present in sound, each peak shows a harmonic
What ...
COMD 5070 Spectra - FFT, LPC Test Questions
and Answers 100% Verifed
What are the two spectrum discussed in this class? - CORRECT- ANSWER-FFT and
LPC
What does FFT stand for? - CORRECT- ANSWER-fast Fourier transform
What does a FFT spectrum show us? - CORRECT- ANSWER-shows us the range of
harmonics that are present in sound, each peak shows a harmonic
What will FFT not show us very well? - CORRECT- ANSWER-formants
Is the FFT display useful for displaying features of the sound source or the vocal tract
filter? - CORRECT- ANSWER-the sound source
What does LPC stand for? - CORRECT- ANSWER-linear predictive coding
What does the LPC show us? - CORRECT- ANSWER-spectral envelope
Is the LPC display useful for displaying features of the sound source or the vocal tract
filter? - CORRECT- ANSWER-vocal tract filter
What are formants? - CORRECT- ANSWER-resonant energy peaks in the vocal tract
transfer function
T or F: The LPC spectrum will show us what the vocal tract is doing - what its
resonance frequencies are relative to one another. - CORRECT- ANSWER-T
Does the vocal tract transfer function apply when sound is being phonated or
whispered? - CORRECT- ANSWER-both
What do peaks on an FFT spectrum represent? - CORRECT- ANSWER-harmonic
components
What do peaks of an LPC spectrum represent? - CORRECT- ANSWER-formants
What does the LPC spectrum reveal - CORRECT- ANSWER-what the vocal tract filter
is doing
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