flanger.h

Go to the documentation of this file.

/*
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_FLANGER_H
#define DSY_FLANGER_H
#ifdef __cplusplus
 
#include <stdint.h>
#include "Utility/delayline.h"
 
namespace daisysp
{
class Flanger
{
  public:
    void Init(float sample_rate);
 
    float Process(float in);
 
    void SetFeedback(float feedback);
 
    void SetLfoDepth(float depth);
 
    void SetLfoFreq(float freq);
 
    void SetDelay(float delay);
 
    void SetDelayMs(float ms);
 
  private:
    float                    sample_rate_;
    static constexpr int32_t kDelayLength = 960; // 20 ms at 48kHz = .02 * 48000
 
    float feedback_;
 
    //triangle lfos
    float lfo_phase_;
    float lfo_freq_;
    float lfo_amp_;
 
    float delay_;
 
    DelayLine<float, kDelayLength> del_;
 
    float ProcessLfo();
};
} //namespace daisysp
#endif
#endif