Akso - Audio DSP Platform

para x2

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Notch filter (biquad)

Author: Johannes Taelman / Jan Hofmann

License: BSD

Github: jho/filter/para x2.axo

Inlets

frac32buffer filter input, 1st part

frac32buffer filter input, 2nd part

Outlets

frac32buffer filter output, 1st part

frac32buffer filter output, 2nd part

Parameters

frac32.s.map gain

frac32.s.map.pitch pitch

bool32.tgl Fx2

bool32.tgl ON

frac32.u.map.filterq reso

Declaration

biquad_state bs;
biquad_coefficients bc;
jho_Para pars;

Init

biquad_clearstate(&bs);
jho_Para_init(&pars);
jho_Para_biquad_coefs(&pars, &bc);

Control Rate

if (!param_ON) {
  for (int i = 0; i < BUFSIZE; ++i) {
    outlet_out__1st[i] = inlet_in__1st[i];
    outlet_out__2nd[i] = inlet_in__2nd[i];
  }
  return;
}
int32_t pitch = param_pitch;
if (!param_Fx2) {
  pitch -= 12 << 21;
}
if (jho_Para_update(&pars, pitch, param_reso, param_gain)) {
  jho_Para_biquad_coefs(&pars, &bc);
}
jho_biquad_dsp(&bs, &bc, inlet_in__1st, outlet_out__1st);
jho_biquad_dsp(&bs, &bc, inlet_in__2nd, outlet_out__2nd);

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