I was wondering if there is anything wrong with the definition of the first-order filter in the help of SigmaStudio.
I found the following definition for the first-order filter:
However when I am trying a high pass filter with a cut-off frequency at 1000 Hz then get the coefficients that appear below:
Now, if the definition of the implementation is right, then for a gainLinear operator of 1 (meaning gain 0), for a highpass filter, I should get a1=b0=-b1.
But clearly this is not the case as the 3 coefficients that are being produced in SigmaStudio are not all the same.
Could you please enlighten me on if I am missing something?