The Kyma Language for Sound Design, Version 4.5

DualParallelTwoPoleFilter
Filters Category
Two parallel second-order filter sections having fixed zeroes (at the complex location 1%0). The output
of this Sound is the sum of the outputs from the two filter sections.
This Sound is useful if you already know the complex pole locations of the filters that you want.
Otherwise, use the TwoFormantElement prototype; it will give you the same results but with more intuitive
parameters (like Frequency and Bandwidth).
Input
This is the Sound that is filtered.
Pole1
This is the pole of the first filter. Type a complex number of the form, r % i, where r is the x coordinate in
the z-plane and i is the y coordinate in the z-plane. Try 0.0%0.9 for a high-pass filter, or 0.9%0.0 for a
low-pass. If (r**2 + i**2) is greater than 1.0, the filter output will overflow. The second pole of this filter is
automatically the complex conjugate of this one, so you don’t have to specify it.
Scale1
This is the scale factor on the first filter section. For the full amplitude use +1.0 or -1.0; any factor whose
absolute value is less than 1 will attenuate the output.
Pole2
This is the pole of the second filter. Type a complex number of the form, r % i, where r is the x coordinate
in the z-plane and i is the y coordinate in the z-plane. Try 0.0%0.9 for a high-pass filter, or 0.9%0.0 for a
low-pass. If (r**2 + i**2) is greater than 1.0, the filter output will overflow. The second pole of this filter is
automatically the complex conjugate of this one, so you don’t have to specify it.
Scale2
This is the scale factor on the second filter section. For the full amplitude use +1.0 or -1.0; any factor
whose absolute value is less than 1 will attenuate the output.
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