Akso - Audio DSP Platform

sin_3_p

$\text{[math]}$

Triple phase sine LFO, unipolar, 0, 120 and 240 degrees, lin-ip, pitch input, phase reset

Author: Are Leistad

License: BSD

Github: drj/lfo/triple_sine.axo

IO Variants: 2

Variant: 1

Inlets

frac32.bipolar pitch

bool32.rising reset phase

Outlets

frac32.positive 0 deg sine wave

frac32.positive 120 deg sine wave

frac32.positive 240 deg sine wave

Parameters

frac32.s.map.lfopitch pitch

Declaration

uint32_t phase;
uint32_t old_reset;

Init

phase = 0;
old_reset = 0;

Control Rate

if (inlet_reset && !old_reset) {
  phase = 0;
} else {
  int32_t freq;
  MTOFEXTENDED(param_pitch + inlet_pitch, freq);
  phase += freq >> 2;
}
old_reset = inlet_reset;

int32_t sine;

SINE2TINTERP(phase, sine)
outlet_0 = (sine >> 5) + (1 << 26);

SINE2TINTERP(phase - 0x55555555, sine)
outlet_120 = (sine >> 5) + (1 << 26);

SINE2TINTERP(phase - 0xAAAAAAAA, sine)
outlet_240 = (sine >> 5) + (1 << 26);

Variant: 2

Inlets

frac32.bipolar pitch

bool32.rising reset phase

Outlets

frac32.bipolar 0 deg sine wave

frac32.bipolar 120 deg sine wave

frac32.bipolar 240 deg sine wave

Parameters

frac32.s.map.lfopitch pitch

Declaration

uint32_t phase;
uint32_t old_reset;

Init

phase = 0;
old_reset = 0;

Control Rate

if (inlet_reset && !old_reset) {
  phase = 0;
} else {
  int32_t freq;
  MTOFEXTENDED(param_pitch + inlet_pitch, freq);
  phase += freq >> 2;
}
old_reset = inlet_reset;

int32_t sine;

SINE2TINTERP(phase, sine)
outlet_0 = (sine >> 4);

SINE2TINTERP(phase - 0x55555555, sine)
outlet_120 = (sine >> 4);

SINE2TINTERP(phase - 0xAAAAAAAA, sine)
outlet_240 = (sine >> 4);

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