File atone.h¶

File List > DaisySP > DaisySP-LGPL > Source > Filters > atone.h

Source Code¶

/*
Copyright (c) 2023 Electrosmith, Corp, Barry Vercoe, John FFitch, Gabriel Maldonado

Use of this source code is governed by the LGPL V2.1
license that can be found in the LICENSE file or at
https://opensource.org/license/lgpl-2-1/
*/

#pragma once
#ifndef DSY_ATONE_H
#define DSY_ATONE_H

#include <stdint.h>
#ifdef __cplusplus

namespace daisysp
{
class ATone
{
  public:
    ATone() {}
    ~ATone() {}
    void Init(float sample_rate);


    float Process(float &in);

    inline void SetFreq(float &freq)
    {
        freq_ = freq;
        CalculateCoefficients();
    }

    inline float GetFreq() { return freq_; }

  private:
    void  CalculateCoefficients();
    float out_, prevout_, in_, freq_, c2_, sample_rate_;
};
} // namespace daisysp
#endif
#endif