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105 lines
2.3 KiB
105 lines
2.3 KiB
4 years ago
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#pragma once
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#ifndef DSY_ANALOG_BD_H
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#define DSY_ANALOG_BD_H
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#include <stdint.h>
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#ifdef __cplusplus
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#include "Synthesis/oscillator.h"
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#include "Filters/svf.h"
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/** @file analogbassdrum.h */
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namespace daisysp
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{
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/**
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@brief 808 bass drum model, revisited.
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@author Ben Sergentanis
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@date Jan 2021
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Ported from pichenettes/eurorack/plaits/dsp/drums/analog_bass_drum.h \n
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to an independent module. \n
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Original code written by Emilie Gillet in 2016. \n
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*/
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class AnalogBassDrum
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{
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public:
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AnalogBassDrum() {}
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~AnalogBassDrum() {}
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/** Initialize the module
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\param sample_rate Audio engine sample rate
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*/
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void Init(float sample_rate);
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/** Get the next sample.
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\param trigger True strikes the drum. Defaults to false.
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*/
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float Process(bool trigger = false);
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/** Strikes the drum. */
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void Trig();
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/** Set the bassdrum to play infinitely
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\param sustain True = infinite length
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*/
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void SetSustain(bool sustain);
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/** Set a small accent.
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\param accent Works 0-1
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*/
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void SetAccent(float accent);
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/** Set the drum's root frequency
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\param f0 Frequency in Hz
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*/
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void SetFreq(float f0);
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/** Set the amount of click.
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\param tone Works 0-1.
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*/
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void SetTone(float tone);
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/** Set the decay length of the drum.
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\param decay Works best 0-1.
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*/
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void SetDecay(float decay);
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/** Set the amount of fm attack. Works together with self fm.
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\param attack_fm_amount Works best 0-1.
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*/
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void SetAttackFmAmount(float attack_fm_amount);
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/**Set the amount of self fm. Also affects fm attack, and volume decay.
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\param self_fm_amount Works best 0-1.
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*/
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void SetSelfFmAmount(float self_fm_amount);
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private:
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inline float Diode(float x);
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float sample_rate_;
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float accent_, f0_, tone_, decay_;
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float attack_fm_amount_, self_fm_amount_;
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bool trig_, sustain_;
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int pulse_remaining_samples_;
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int fm_pulse_remaining_samples_;
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float pulse_;
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float pulse_height_;
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float pulse_lp_;
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float fm_pulse_lp_;
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float retrig_pulse_;
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float lp_out_;
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float tone_lp_;
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float sustain_gain_;
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Svf resonator_;
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//for use in sin + cos osc. in sustain mode
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float phase_;
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};
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} // namespace daisysp
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#endif
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#endif
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