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84 lines
1.9 KiB
84 lines
1.9 KiB
4 years ago
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#pragma once
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#ifndef DSY_GRAINLET_H
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#define DSY_GRAINLET_H
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#include <stdint.h>
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#ifdef __cplusplus
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/** @file grainlet.h */
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namespace daisysp
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{
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/**
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@brief Granular Oscillator Module.
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@author Ben Sergentanis
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@date Dec 2020
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A phase-distorted single cycle sine * another continuously running sine, \n
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the whole thing synced to a main oscillator. \n \n
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Ported from pichenettes/eurorack/plaits/dsp/oscillator/grainlet_oscillator.h \n
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to an independent module. \n
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Original code written by Emilie Gillet in 2016. \n
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*/
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class GrainletOscillator
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{
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public:
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GrainletOscillator() {}
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~GrainletOscillator() {}
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/** Initialize the oscillator
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\param sample_rate Sample rate of audio engine
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*/
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void Init(float sample_rate);
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/** Get the next sample */
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float Process();
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/** Sets the carrier frequency
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\param freq Frequency in Hz
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*/
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void SetFreq(float freq);
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/** Sets the formant frequency
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\param freq Frequency in Hz
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*/
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void SetFormantFreq(float freq);
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/** Waveshaping
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\param shape Shapes differently from 0-1, 1-2, and > 2.
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*/
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void SetShape(float shape);
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/** Sets the amount of formant to bleed through
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\param bleed Works best 0-1
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*/
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void SetBleed(float bleed);
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private:
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float Sine(float phase);
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float Carrier(float phase, float shape);
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float Grainlet(float carrier_phase,
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float formant_phase,
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float shape,
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float bleed);
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// Oscillator state.
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float carrier_phase_;
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float formant_phase_;
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float next_sample_;
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// For interpolation of parameters.
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float carrier_frequency_;
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float formant_frequency_;
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float carrier_shape_;
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float carrier_bleed_;
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float new_carrier_shape_;
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float new_carrier_bleed_;
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float sample_rate_;
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};
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} // namespace daisysp
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#endif
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#endif
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