I'm trying to make a digital equalizer with an Arduino board. The only problem is that i don't fully understand how the formula works. I found the formula on Wikipedia for a high shelf filter. The formula

Can someone explain me how to use the formula?

  • $\begingroup$ You make jest. A checker board that turns into a gride of nearly invisible dots wired together diagonally is not a formula. $\endgroup$ – William Elliot Jan 12 at 10:05

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