6dBresLP
6dB Lowpass filter with extra lowpass and highpass filters in the resonance path (creating a bandpass filter). The resonance-frequency can be offset respective to the cutoff frequency The resonance bandwidth can be set with the "width" control. Seperate inputs for pitch, envelope and lfo are added to allow for different responses to these signals for both cutoff and resonance.
Inlets
frac32buffer input
frac32 pitch
frac32 env
frac32 LFO
Outlets
frac32buffer output
Parameters
frac32.u.map gain
frac32.s.map.pitch freq
frac32.s.map envCut
frac32.s.map lfoCut
frac32.s.map res
frac32.s.map envRes
frac32.s.map lfoRes
frac32.s.map offset
frac32.s.map width
int32_t val1;
int32_t val2;
int32_t val3;
int32_t val4;val1 = 0;
val2 = 0;
val3 = 0;int32_t f;
int32_t g;
int32_t h;
int32_t Freq;
Freq = __SSAT(param_freq + inlet_pitch +
___SMMUL(param_envCut << 3, inlet_env << 3) +
___SMMUL(inlet_LFO << 3, param_lfoCut << 2),
28);
MTOF(Freq, f);
MTOF(Freq + param_offset - (param_width >> 2), g);
MTOF(Freq + param_offset + (param_width >> 2), h);
// int32_t res=param_res>0?param_res>>1:param_res;
int32_t res = param_res + ___SMMUL(param_envRes << 3, inlet_env << 2) +
___SMMUL(param_lfoRes << 3, inlet_LFO << 2);val2 = ___SMMLA((val4 - val2) << 1, g, val2);
val3 = ___SMMLA((val4 - val2 - val3) << 1, h, val3);
int32_t sat = __SSAT(val3, 27);
int32_t gain = inlet_in + ___SMMUL(res << 3, sat << 3);
gain += +___SMMUL(gain << 4, param_gain << 4);
gain = __SSAT(gain, 27);
val1 = ___SMMLA((gain - val1) << 1, f, val1);
val4 = ___SMMLA((val1 - val4) << 1, f, val4);
outlet_out = val4;