One Zero, One Pole filter (in: DSP and Plugin Devel…)

I return to mystran’s reply from time to time, getting a little further in my understanding each time I revisit it.

I’m able to replicate the mathematics by hand up to and including this equation:

I understand the explanation of going from:

[code]
b = cos(w) / (sqrt(sin^2(w)) + 1)
[/code]

To:

[code]
b = cos(w) / (1 + sin(w))
[/code]

This equation gives us the value of the coefficient ‘b’ so that the magnitude of the frequency response at the specified frequency ‘w’ is the sqrt(0.5), i.e….

Go to this post

Go to first unread post in this topic