File fm2.h¶

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Source Code¶

/*
Copyright (c) 2020 Electrosmith, Corp

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_FM2_H
#define DSY_FM2_H

#include <stdint.h>
#include "Synthesis/oscillator.h"
#ifdef __cplusplus

namespace daisysp
{
class Fm2
{
  public:
    Fm2() {}
    ~Fm2() {}

    void Init(float samplerate);


    float Process();

    void SetFrequency(float freq);

    void SetRatio(float ratio);

    void SetIndex(float index);

    float GetIndex();

    void Reset();

  private:
    static constexpr float kIdxScalar      = 0.2f;
    static constexpr float kIdxScalarRecip = 1.f / kIdxScalar;

    Oscillator mod_, car_;
    float      idx_;
    float      freq_, lfreq_, ratio_, lratio_;
};
} // namespace daisysp
#endif
#endif