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COMD 5070 Spectra - FFT, LPC Test Questions and Answers 100% Verifed

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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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Uploaded on
August 24, 2024
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2024/2025
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  • comd 5070 spectra fft lpc test questions and an
  • comd 5070 spectra fft lpc test questions stuvia
  • what are the two spectrum discussed in this class

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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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