Seeking some guidance about using this component of the DSP Engine.
From reading this article I am guessing that the A parameters are feedback filter coefficients and the B parameters are feedforward filter coefficients where the generic filter is a single biquad filter and A0 is normalised as 1.
I found this article really helpful in understanding the differences between IIR and FIR filters and will be experimenting with the linked custom biquad programming spreadsheet.
So at the moment I am inclined to think of this feature as a single Parametric EQ filter with greater control over feedback/feedfoward parameters but I don’t see gain or Q controls. Are those “secondary parameters” that arise out of the underlying filter coefficients ?
What kind of use case would be well suited to this feature ?
Any insights from @brian or other users with more dsp experience than me (that’s a very low bar !) are welcome.