Added DaisySP

daisysp/Synthesis/vosim.h

@@ -0,0 +1,82 @@
+/*
+Copyright (c) 2020 Electrosmith, Corp, Emilie Gillet
+
+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_VOSIM_H
+#define DSY_VOSIM_H
+
+#include <stdint.h>
+#ifdef __cplusplus
+
+/** @file vosim.h */
+
+namespace daisysp
+{
+/**  
+         @brief Vosim Oscillator Module \n 
+       @author Ben Sergentanis
+       @date Dec 2020 
+       Two sinewaves multiplied by and sync'ed to a carrier. \n \n
+       Ported from pichenettes/eurorack/plaits/dsp/oscillator/vosim_oscillator.h \n 
+       \n to an independent module. \n
+       Original code written by Emilie Gillet in 2016. \n
+*/
+class VosimOscillator
+{
+  public:
+    VosimOscillator() {}
+    ~VosimOscillator() {}
+
+    /** Initializes the FormantOscillator module.
+        \param sample_rate - The sample rate of the audio engine being run. 
+    */
+    void Init(float sample_rate);
+
+    /** Get the next sample
+    */
+    float Process();
+
+    /** Set carrier frequency.
+        \param freq Frequency in Hz.
+    */
+    void SetFreq(float freq);
+
+    /** Set formant 1 frequency.
+        \param freq Frequency in Hz.
+    */
+    void SetForm1Freq(float freq);
+
+    /** Set formant 2 frequency.
+        \param freq Frequency in Hz.
+    */
+    void SetForm2Freq(float freq);
+
+    /** Waveshaping
+        \param shape Shape to set. Works -1 to 1
+    */
+    void SetShape(float shape);
+
+  private:
+    float Sine(float phase);
+
+    float sample_rate_;
+
+    // Oscillator state.
+    float carrier_phase_;
+    float formant_1_phase_;
+    float formant_2_phase_;
+
+    // For interpolation of parameters.
+    float carrier_frequency_;
+    float formant_1_frequency_;
+    float formant_2_frequency_;
+    float carrier_shape_;
+};
+} // namespace daisysp
+#endif
+#endif