From 199f81a761d07597a9260f4c201f5743b470cbda Mon Sep 17 00:00:00 2001
From: Nathan Singer <nathan.r.singer@gmx.com>
Date: Mon, 7 Jul 2025 14:38:46 -0400
Subject: [PATCH] tone complete?

---
 Source/PluginProcessor.cpp | 76 +++++++++++++++++++++++++++++---------
 Source/PluginProcessor.h   |  5 ++-
 2 files changed, 63 insertions(+), 18 deletions(-)

diff --git a/Source/PluginProcessor.cpp b/Source/PluginProcessor.cpp
index a67f7c0..a2ccf8f 100644
--- a/Source/PluginProcessor.cpp
+++ b/Source/PluginProcessor.cpp
@@ -95,9 +95,21 @@ void ReverbAudioProcessor::prepareToPlay (double sampleRate, int samplesPerBlock
     // Use this method as the place to do any pre-playback
     // initialisation that you need..
     verb.reset();
+	
+    juce::IIRFilter* one_l = new juce::IIRFilter();
+    juce::IIRFilter* one_r = new juce::IIRFilter();
+    juce::IIRFilter* two_l = new juce::IIRFilter();
+    juce::IIRFilter* two_r = new juce::IIRFilter();
+    juce::IIRFilter* three_l = new juce::IIRFilter();
+    juce::IIRFilter* three_r = new juce::IIRFilter();
 
-    filter_l = new juce::IIRFilter();
-    filter_r = new juce::IIRFilter();
+    filters_l.push_back(one_l);
+    filters_l.push_back(two_l);
+    filters_l.push_back(three_l);
+
+    filters_r.push_back(one_r);
+    filters_r.push_back(two_r);
+    filters_r.push_back(three_r);
 
 }
 
@@ -168,14 +180,18 @@ void ReverbAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer, juce:
 		    num_samples);
 
     setup_filter();
-    filter_l->processSamples(channel_one, num_samples);
-    filter_r->processSamples(channel_two, num_samples);
+    for (int i = 0; i < 3; i++) {
+	filters_l[i]->processSamples(channel_one, num_samples);
+	filters_r[i]->processSamples(channel_two, num_samples);
+    }
+
+    //filter_l->processSamples(channel_one, num_samples);
+    //filter_r->processSamples(channel_two, num_samples);
 
 	
     for (auto i = 0; i < num_samples; i++) {
 	*buffer.getWritePointer(0, i) = (*buffer.getReadPointer(0, i)) * out->get();
 	*buffer.getWritePointer(1, i) = (*buffer.getReadPointer(1, i)) * out->get();
-
     }
 
 }
@@ -183,20 +199,46 @@ void ReverbAudioProcessor::processBlock (juce::AudioBuffer<float>& buffer, juce:
 void ReverbAudioProcessor::setup_filter()
 {
 	juce::IIRCoefficients coef = juce::IIRCoefficients();
-	if (lofi) {
-		filter_l->setCoefficients(coef.makeBandPass(sample_rate, tone_val->get() * 24000));
-		filter_r->setCoefficients(coef.makeBandPass(sample_rate, tone_val->get() * 24000));
-
-	} else {
-		if (tone_val->get() == 0.5) {
-			filter_l->makeInactive();
-			filter_r->makeInactive();
-
-		} else {
-		 	filter_l->makeInactive();
-			filter_r->makeInactive();
+	if (lofi->get()) {
+		for (int i = 0; i < 3; i++) {
+			//filters_l[i]->reset();
+			//filters_r[i]->reset();
 		}
 
+		filters_l[0]->setCoefficients(coef.makeBandPass(sample_rate, tone_val->get() * 24000));
+		filters_r[0]->setCoefficients(coef.makeBandPass(sample_rate, tone_val->get() * 24000));
+
+		for (int i = 1; i < 3; i++) {
+			filters_r[i]->makeInactive();
+			filters_l[i]->makeInactive();
+		}
+	} else {
+		for (int i = 0; i < 3; i++) {
+			//filters_l[i]->reset();
+			//filters_r[i]->reset();
+		}
+
+		filters_l[0]->setCoefficients(coef.makeHighPass(sample_rate, 85.0));
+		filters_r[0]->setCoefficients(coef.makeHighPass(sample_rate, 85.0));
+
+		float expanded_freq = 0;
+		if (tone_val->get() == 0.5) {
+			expanded_freq = 12000.0;
+		} else if (tone_val->get() < 0.5) {
+			expanded_freq = (tone_val->get() * 2) * (12000 - 5000) + 5000; // need to expand the normalized range
+		} else {
+			expanded_freq = ((tone_val->get() - 0.5) * 2) * (20000 - 12000) + 12000; // need to expand the normalized range
+		}
+
+		filters_l[1]->setCoefficients(coef.makeLowPass(sample_rate, expanded_freq));
+		filters_r[1]->setCoefficients(coef.makeLowPass(sample_rate, expanded_freq));
+
+		//filters_l[2]->setCoefficients(coef.makePeakFilter(sample_rate, 6000, 0.4, 1));
+		//filters_r[2]->setCoefficients(coef.makePeakFilter(sample_rate, 6000, 0.4, 1));
+
+		filters_l[2]->makeInactive(); // band boost for later?
+		filters_r[2]->makeInactive();
+
 	}
 }
 
diff --git a/Source/PluginProcessor.h b/Source/PluginProcessor.h
index c34d784..df038d0 100644
--- a/Source/PluginProcessor.h
+++ b/Source/PluginProcessor.h
@@ -75,6 +75,9 @@ private:
 
     juce::IIRFilter* filter_l;
     juce::IIRFilter* filter_r;
-    //==============================================================================
+
+    std::vector<juce::IIRFilter*> filters_l;
+    std::vector<juce::IIRFilter*> filters_r;
+
     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ReverbAudioProcessor)
 };