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Why is the amplitude spectrum important? Why is the phase spectrum un important?. Amplitude spectra of [s] and [S] . Which is which? How can you tell?. Amplitude. Frequency.
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Why is the amplitude spectrum important? Why is the phase spectrum unimportant?
Amplitudespectraof [s] and [S]. Which is which? How can you tell? Amplitude Frequency p.s. On each plot, there is a jigglyblackcurve and a smoother redcurve. The black ones are Fourier amplitude spectra. What are the smoother red ones?
Amplitude spectra of [s] and [S]. Which is which? How can you tell? [s] Amplitude [S] Frequency Answer: The smooth red curves are spectrum envelopes.
Phasespectraof [s] and [S]. Which is which? Can’t tell? Neither can I. The two phase spectra are different, but (unlike the amplitude spectra) not in any predictable way.
Moral: The amplitude spectrum tells you something useful about the nature of the sound. (It tells you what frequencies are present at what amps.) The phase spectrum does not. This is why the ear goes thru all the trouble to get rid of the phase information. [S] [s]
