Akso - Audio DSP Platform

BD2

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sine bass kick

Author: Remco van der Most

License: BSD

Github: sss/edrum/BD2.axo

Inlets

frac32.bipolar pitch

frac32buffer frequency

frac32buffer phase

bool32 gate

Outlets

frac32buffer.bipolar sine wave

Parameters

frac32.s.map.pitch pitch

frac32.u.map Penv

frac32.u.map Pdec

frac32.u.map Vdec

Declaration

uint32_t Phase;
int32_t ad1;
int32_t ad2;
int32_t freq;
int32_t decay1;
int32_t decay2;
int ttrig;

Init

Phase = 0;

Control Rate

decay1 = (1 << 27) - param_Pdec;
decay1 = ___SMMUL(decay1 << 3, decay1 << 2);
decay1 = ___SMMUL(decay1 << 3, decay1 << 2);
decay1 = (1 << 27) - decay1;
decay2 = (1 << 27) - param_Vdec;
decay2 = ___SMMUL(decay2 << 3, decay2 << 2);
decay2 = ___SMMUL(decay2 << 3, decay2 << 2);
decay2 = (1 << 27) - decay2;

Audio Rate

if ((inlet_gate > 0) && (!(ttrig))) {
  Phase = 0;
  ttrig = 1;
  ad1 = (1 << 27);
  ad2 = (1 << 27);
} else if (inlet_gate == 0) {
  ttrig = 0;
}

ad1 = ___SMMUL(ad1 << 3, decay1 << 2);
ad2 = ___SMMUL(ad2 << 3, decay2 << 2);
MTOFEXTENDED(param_pitch + inlet_pitch + ___SMMUL(ad1 << 3, param_Penv << 2),
             freq);
Phase += freq + inlet_freq;
int32_t r;
int32_t p2 = Phase + (inlet_phase << 4);
SINE2TINTERP(p2, r)
outlet_wave = ___SMMUL(ad2 << 3, (r >> 3));

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