Transform Reference Guide
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A biquad filter is a two-pole, two-zero linear filter described by the following difference equation or signal flow graph:
Biquads are commonly used to describe a number of commonly used filter topologies, many of which are described by other transforms in OSW.
The biquad coefficients can be set individually on their respective inlets, or via a list a0, a1, a2, b1, b2 via the coefs inlet.
biquad filter pole zero
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