message: AudioFilterIIR: tweak its constructor
diff: @@ -53,7 +53,9 @@ class AudioFilterIIR_F32 : public AudioStream_F32
  hp_coeff[0] = b[0]; hp_coeff[1] = b[1]; hp_coeff[2] = b[2]; //here are the matlab "b" coefficients
  hp_coeff[3] = -a[1]; hp_coeff[4] = -a[2]; //the DSP needs the "a" terms to have opposite sign vs Matlab
  uint8_t n_stages = 1;
  - arm_biquad_cascade_df1_init_f32(&iir_inst, n_stages, hp_coeff, &StateF32[0]);
  + //arm_biquad_cascade_df1_init_f32(&iir_inst, n_stages, hp_coeff, &StateF32[0]);
  + begin(hp_coeff, n_stages);
  +
  }
  virtual void update(void);
  