svf.h

/*
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_SVF_H
#define DSY_SVF_H
 
namespace daisysp
{
class Svf
{
  public:
    Svf() {}
    ~Svf() {}
    void Init(float sample_rate);
 
 
    void Process(float in);
 
 
    void SetFreq(float f);
 
    void SetRes(float r);
 
    void SetDrive(float d);
    inline float Low() { return out_low_; }
    inline float High() { return out_high_; }
    inline float Band() { return out_band_; }
    inline float Notch() { return out_notch_; }
    inline float Peak() { return out_peak_; }
 
  private:
    float sr_, fc_, res_, drive_, freq_, damp_;
    float notch_, low_, high_, band_, peak_;
    float input_;
    float out_low_, out_high_, out_band_, out_peak_, out_notch_;
    float pre_drive_, fc_max_;
};
} // namespace daisysp
 
#endif