iir_36.h

// DD4WH LPF DC - 3.6 kHz
// (sampling rate 44.117 kHz)
// 19.11.2015
// Parameters generated using Iowa Hills IIR Filter Designer
// 8th order Inv Cheby Lowpass (4-stage cascaded biquad)
// 
// 

// coefficients must be in order: B0, B1, B2, A1, A0
// unlike output by Iowa Hils IIR Filter Designer !

const double IIR_36_Coeffs_0[] =
{   0.497500055005770048,
   -0.724503794330950246,
   0.497500055005770048 ,
   -0.979544815675165492,
   0.250041131355755342

};

const double IIR_36_Coeffs_1[] =
{   0.353976527533391316,
   -0.453688678098041753,
   0.353976527533391316,
   -1.148103335906009100,
   0.402367712874749928

};

const double IIR_36_Coeffs_2[] =
{   0.182011681178916945,
   -0.124512696361030420,
   0.182011681178916945,
   -1.384335079136399080,
   0.623845745133202567

};

const double IIR_36_Coeffs_3[] =
{   0.076075894745040659,
   0.090996222607221261,
   0.076075894745040659,
   -1.622758218022206660,
   0.865906230119509068

};