Added DaisySP

daisysp/Noise/clockednoise.cpp

@@ -0,0 +1,59 @@
+#include <random>
+#include "dsp.h"
+#include "clockednoise.h"
+
+using namespace daisysp;
+
+void ClockedNoise::Init(float sample_rate)
+{
+    sample_rate_ = sample_rate;
+
+    phase_       = 0.0f;
+    sample_      = 0.0f;
+    next_sample_ = 0.0f;
+    frequency_   = 0.001f;
+}
+
+float ClockedNoise::Process()
+{
+    float next_sample = next_sample_;
+    float sample      = sample_;
+
+    float this_sample = next_sample;
+    next_sample       = 0.0f;
+
+    const float raw_sample = rand() * kRandFrac * 2.0f - 1.0f;
+    float       raw_amount = 4.0f * (frequency_ - 0.25f);
+    raw_amount             = fclamp(raw_amount, 0.0f, 1.0f);
+
+    phase_ += frequency_;
+
+    if(phase_ >= 1.0f)
+    {
+        phase_ -= 1.0f;
+        float t             = phase_ / frequency_;
+        float new_sample    = raw_sample;
+        float discontinuity = new_sample - sample;
+        this_sample += discontinuity * ThisBlepSample(t);
+        next_sample += discontinuity * NextBlepSample(t);
+        sample = new_sample;
+    }
+
+    next_sample += sample;
+    next_sample_ = next_sample;
+    sample_      = sample;
+
+    return this_sample + raw_amount * (raw_sample - this_sample);
+}
+
+void ClockedNoise::SetFreq(float freq)
+{
+    freq       = freq / sample_rate_;
+    freq       = fclamp(freq, 0.0f, 1.0f);
+    frequency_ = freq;
+}
+
+void ClockedNoise::Sync()
+{
+    phase_ = 1.0f;
+}