Figure 13, 2nd edition

Submitted by admin on Wed, 04/04/2018 - 21:11

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admin: First posted on 2015 03 12

Atakan, 2015 03 12: Hi,

On pg23 of 2nd Edition DSP for Audio Apps, Fig.13 has a scale of frequencies in Hz, but the zero crossings seem to be misplaced, is it possible that they are sample numbers? In the figure, the zero crossings are at 40,200 and 400-corresponding to frequencies 50, 10 and 5Hz. Am I wrong?

Atakan

mic, 2015 09 03: The horizontal axis does contain frequencies. I simply started the example with the frequency 10 Hz and that is why it looks like the origin seems misplaced. A frequency of 0 Hz is just not interesting.

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