File zoscillator.h¶

File List > DaisySP > Source > Synthesis > zoscillator.h
Source Code¶

/*
Copyright (c) 2020 Electrosmith, Corp, Emilie Gillet

Use of this source code is governed by an MIT-style
license that can be found in the LICENSE file or at
https://opensource.org/licenses/MIT.
*/

#pragma once
#ifndef DSY_ZOSCILLATOR_H
#define DSY_ZOSCILLATOR_H

#include <stdint.h>
#ifdef __cplusplus

namespace daisysp
{
class ZOscillator
{
  public:
    ZOscillator() {}
    ~ZOscillator() {}

    void Init(float sample_rate);

    float Process();

    void SetFreq(float freq);

    void SetFormantFreq(float freq);

    void SetShape(float shape);

    void SetMode(float mode);

  private:
    inline float Sine(float phase);
    inline float Z(float c, float d, float f, float shape, float mode);

    float sample_rate_;

    // Oscillator state.
    float carrier_phase_;
    float discontinuity_phase_;
    float formant_phase_;
    float next_sample_;

    // For interpolation of parameters.
    float carrier_frequency_;
    float formant_frequency_;
    float carrier_shape_, shape_new_;
    float mode_, mode_new_;
};
} // namespace daisysp
#endif
#endif