Added DaisySP

2026-04-24 14:46:05 +02:00
parent 82190216c3
commit dd63b3aed4
96 changed files with 10613 additions and 0 deletions
@@ -0,0 +1,81 @@
+#include "dsp.h"
+#include "vosim.h"
+#include <math.h>
+
+using namespace daisysp;
+
+void VosimOscillator::Init(float sample_rate)
+{
+    sample_rate_ = sample_rate;
+
+    carrier_phase_   = 0.0f;
+    formant_1_phase_ = 0.0f;
+    formant_2_phase_ = 0.0f;
+
+    SetFreq(105.f);
+    SetForm1Freq(1390.f);
+    SetForm2Freq(817.f);
+    SetShape(.5f);
+}
+
+float VosimOscillator::Process()
+{
+    carrier_phase_ += carrier_frequency_;
+    if(carrier_phase_ >= 1.0f)
+    {
+        carrier_phase_ -= 1.0f;
+        float reset_time = carrier_phase_ / carrier_frequency_;
+        formant_1_phase_ = reset_time * formant_1_frequency_;
+        formant_2_phase_ = reset_time * formant_2_frequency_;
+    }
+    else
+    {
+        formant_1_phase_ += formant_1_frequency_;
+        if(formant_1_phase_ >= 1.0f)
+        {
+            formant_1_phase_ -= 1.0f;
+        }
+        formant_2_phase_ += formant_2_frequency_;
+        if(formant_2_phase_ >= 1.0f)
+        {
+            formant_2_phase_ -= 1.0f;
+        }
+    }
+
+    float carrier         = Sine(carrier_phase_ * 0.5f + 0.25f) + 1.0f;
+    float reset_phase     = 0.75f - 0.25f * carrier_shape_;
+    float reset_amplitude = Sine(reset_phase);
+    float formant_0 = Sine(formant_1_phase_ + reset_phase) - reset_amplitude;
+    float formant_1 = Sine(formant_2_phase_ + reset_phase) - reset_amplitude;
+    return carrier * (formant_0 + formant_1) * 0.25f + reset_amplitude;
+}
+
+void VosimOscillator::SetFreq(float freq)
+{
+    carrier_frequency_ = freq / sample_rate_;
+    carrier_frequency_ = carrier_frequency_ > .25f ? .25f : carrier_frequency_;
+}
+
+void VosimOscillator::SetForm1Freq(float freq)
+{
+    formant_1_frequency_ = freq / sample_rate_;
+    formant_1_frequency_
+        = formant_1_frequency_ > .25f ? .25f : formant_1_frequency_;
+}
+
+void VosimOscillator::SetForm2Freq(float freq)
+{
+    formant_2_frequency_ = freq / sample_rate_;
+    formant_2_frequency_
+        = formant_2_frequency_ > .25f ? .25f : formant_2_frequency_;
+}
+
+void VosimOscillator::SetShape(float shape)
+{
+    carrier_shape_ = shape;
+}
+
+float VosimOscillator::Sine(float phase)
+{
+    return sinf(TWOPI_F * phase);
+}