How to export coefficients of IIR filter from Filter Designer Tool?

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I need to get a two matrixes (numerator and denumerator) of IIR filter that I designed in FilterDesigner, so I could use them with filter() function or to export them to C header for later using with some other things. But unfortunately, the export option gives two different matrixes (SOS and G). How to solve it? Some day I saw someone do this, but he changed a lot of things in interface etc., if I remember correctly.

Answers (1)

Jonas on 21 Jul 2021
go to Edit -> Convert to single section
and then you can export them as numerator and denumerator

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