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COMD 5070 Spectra - FFT, LPC Questions And Answers With 100% Correct Answers
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What does FFT stand for? - fast Fourier transform What does a FFT spectrum show us? - shows us the range of harmonics that are present in sound, each peak shows a harmonic What will FFT not show us very well? - formants Is the FFT display useful for displaying features of the sound source or th...

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  • August 10, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • comd 5070 spectra fft lpc

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  • COMD 5070 Spectra
  • COMD 5070 Spectra

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COMD 5070 Spectra - FFT, LPC

What does FFT stand for? - fast Fourier transform



What does a FFT spectrum show us? - shows us the range of harmonics that are present in sound,
each peak shows a harmonic



What will FFT not show us very well? - formants



Is the FFT display useful for displaying features of the sound source or the vocal tract filter? - the
sound source



What does the LPC show us? - spectral envelope

What are the two spectrum discussed in this class? - FFT and LPC




What are formants? - 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. - T

What does LPC stand for? - linear predictive coding



Does the vocal tract transfer function apply when sound is being phonated or whispered? - both



What do peaks on an FFT spectrum represent? - harmonic components



What do peaks of an LPC spectrum represent? - formants

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