I have been given the task of measuring the performance of Biquad IIR filters on a new CPU that we are evaluating.
What I know is that the Biquad filters can be cascaded to form higher order filters.
y1 = b0*x + ..; d11 = ..; d12 = ...; y2 = ...; d21 = ..; ... ... d31 = b1*y2...;
The 5 coefficients for each of the stages are available and so are the initial differences (Dx1 and Dx2). So should I just sequentially execute the stages for each sample? Is that all to Biquad IIR software implementation? I would be grateful if you can tell me what else is in the recipe.