I'm trying to get the filter coefficients of the EQ filter,but can't get it right with the AIC document even with the examples in the appendix. I followed the instrustions and I'm sure I have understood the normzlization steps. But the problems seem to me I'm wrong after 1st step, i.e the equation in sec1.2 don't get to the result in the appendix.
I'm confused and I need someone's help. Did I get something wrong or there is sth i should know?8358.Biquad Filters Application Note(1).pdf