67 lines
1.5 KiB
C++
67 lines
1.5 KiB
C++
/*
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Copyright (c) 2020 Electrosmith, Corp, Emilie Gillet
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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#pragma once
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#ifndef DSY_CLOCKEDNOISE_H
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#define DSY_CLOCKEDNOISE_H
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#include <stdint.h>
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#ifdef __cplusplus
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/** @file clockednoise.h */
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namespace daisysp
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{
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/**
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@brief Clocked Noise Module
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@author Ported by Ben Sergentanis
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@date Jan 2021
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Noise processed by a sample and hold running at a target frequency. \n \n
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Ported from pichenettes/eurorack/plaits/dsp/noise/clocked_noise.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 ClockedNoise
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{
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public:
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ClockedNoise() {}
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~ClockedNoise() {}
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/** Initialize 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 floating point sample */
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float Process();
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/** Set the frequency at which the next sample is generated.
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\param freq Frequency in Hz
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*/
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void SetFreq(float freq);
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/** Calling this forces another random float to be generated */
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void Sync();
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private:
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// Oscillator state.
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float phase_;
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float sample_;
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float next_sample_;
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// For interpolation of parameters.
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float frequency_;
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float sample_rate_;
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static constexpr float kRandFrac = 1.f / (float)RAND_MAX;
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};
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} // namespace daisysp
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#endif
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#endif
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