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60 lines
1.2 KiB
60 lines
1.2 KiB
#pragma once
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#ifndef DSY_TREMOLO_H
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#define DSY_TREMOLO_H
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#include <stdint.h>
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#ifdef __cplusplus
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#include <math.h>
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#include "Synthesis/oscillator.h"
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/** @file tremolo.h */
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namespace daisysp
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{
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/**
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@brief Tremolo effect.
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@author Ben Sergentanis
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@date Jan 2021
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Based on https://christianfloisand.wordpress.com/2012/04/18/coding-some-tremolo/ \n
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*/
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class Tremolo
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{
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public:
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Tremolo() {}
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~Tremolo() {}
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/** Initializes the module
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\param sample_rate The sample rate of the audio engine being run.
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*/
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void Init(float sample_rate);
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/**
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\param in Input sample.
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\return Next floating point sample.
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*/
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float Process(float in);
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/** Sets the tremolo rate.
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\param freq Tremolo freq in Hz.
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*/
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void SetFreq(float freq);
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/** Shape of the modulating lfo
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\param waveform Oscillator waveform. Use Oscillator::WAVE_SIN for example.
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*/
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void SetWaveform(int waveform);
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/** How much to modulate your volume.
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\param depth Works 0-1.
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*/
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void SetDepth(float depth);
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private:
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float sample_rate_, dc_os_;
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Oscillator osc_;
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};
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} // namespace daisysp
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#endif
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#endif
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