Feedback Overdrive

10x feedback depth for all your noise source needs
baconpaul · Jan 16, 2025 · 35803b5 · 35803b5
1 parent d7d4668
commit 35803b5
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Showing 4 changed files with 34 additions and 8 deletions.
diff --git a/src/dsp/matrix_node.h b/src/dsp/matrix_node.h
@@ -198,12 +198,13 @@ struct MatrixNodeSelf : EnvelopeSupport<Patch::SelfNode>,
     const MonoValues &monoValues;
     const VoiceValues &voiceValues;
 
-    const float &fbBase, &lfoToFB, &activeV, &envToFB;
+    const float &fbBase, &lfoToFB, &activeV, &envToFB, &overdriveV;
     MatrixNodeSelf(const Patch::SelfNode &sn, OpSource &on, MonoValues &mv, const VoiceValues &vv)
         : selfNode(sn), monoValues(mv), voiceValues(vv), onto(on), fbBase(sn.fbLevel),
-          lfoToFB(sn.lfoToFB), activeV(sn.active), envToFB(sn.envToFB), EnvelopeSupport(sn, mv, vv),
-          LFOSupport(sn, mv), ModulationSupport(sn, mv, vv){};
+          lfoToFB(sn.lfoToFB), activeV(sn.active), envToFB(sn.envToFB), overdriveV(sn.overdrive),
+          EnvelopeSupport(sn, mv, vv), LFOSupport(sn, mv), ModulationSupport(sn, mv, vv){};
     bool active{true}, lfoMul{false};
+    float overdriveFactor{1.0};
 
     void attack()
     {
@@ -214,6 +215,7 @@ struct MatrixNodeSelf : EnvelopeSupport<Patch::SelfNode>,
             calculateModulation();
             envAttack();
             lfoAttack();
+            overdriveFactor = overdriveV > 0.5 ? 10.0 : 1.0;
         }
     }
     void applyBlock()
@@ -253,7 +255,7 @@ struct MatrixNodeSelf : EnvelopeSupport<Patch::SelfNode>,
         }
         for (int j = 0; j < blockSize; ++j)
         {
-            onto.feedbackLevel[j] = (int32_t)((1 << 24) * modlev[j]);
+            onto.feedbackLevel[j] = (int32_t)((1 << 24) * modlev[j] * overdriveFactor);
         }
     }
 

diff --git a/src/synth/patch.h b/src/synth/patch.h
@@ -584,6 +584,11 @@ struct Patch
                           .withGroupName(name(idx))
                           .withID(id(27, idx))
                           .withDefault(0)),
+              overdrive(boolMd()
+                            .withName(name(idx) + " Overdrive")
+                            .withGroupName(name(idx))
+                            .withDefault(false)
+                            .withID(id(28, idx))),
               ModulationMixin(name(idx), id(40, idx)),
               modtarget(scpu::make_array_lambda<Param, numModsPer>(
                   [this, idx](int i)
@@ -610,14 +615,14 @@ struct Patch
             return name(index);
         }
 
-        Param fbLevel, lfoToFB, envToFB;
+        Param fbLevel, lfoToFB, envToFB, overdrive;
         Param active;
 
         std::array<Param, numModsPer> modtarget;
 
         std::vector<Param *> params()
         {
-            std::vector<Param *> res{&fbLevel, &active, &lfoToFB, &envToFB};
+            std::vector<Param *> res{&fbLevel, &active, &lfoToFB, &envToFB, &overdrive};
             appendDAHDSRParams(res);
             appendLFOParams(res);
 

diff --git a/src/ui/self-sub-panel.cpp b/src/ui/self-sub-panel.cpp
@@ -55,6 +55,13 @@ void SelfSubPanel::setSelectedIndex(int idx)
     modLabelL->setText(std::string() + "LFO" + u8"\U00002192");
     addAndMakeVisible(*modLabelL);
 
+    overdriveTitle = std::make_unique<jcmp::RuledLabel>();
+    overdriveTitle->setText("OverDrv");
+    addAndMakeVisible(*overdriveTitle);
+    createComponent(editor, *this, n.overdrive, overdrive, overdriveD);
+    addAndMakeVisible(*overdrive);
+    overdrive->setLabel("10x");
+
     auto op = [w = juce::Component::SafePointer(this)]()
     {
         if (w)
@@ -76,7 +83,7 @@ void SelfSubPanel::resized()
     pn = pn.translated(uicMargin, 0);
     auto r = layoutLFOAt(pn.getX(), p.getY());
 
-    auto xtraW = 4;
+    auto xtraW = 12;
     auto depx = r.getX() + uicMargin;
     auto depy = r.getY();
 
@@ -88,7 +95,15 @@ void SelfSubPanel::resized()
     depx += uicKnobSize + uicMargin + 2 * xtraW;
     positionTitleLabelAt(depx, depy, uicKnobSize + 2 * xtraW, modLabelL);
 
-    positionKnobAndLabel(depx + xtraW, r.getY() + uicTitleLabelHeight, lfoToFb, lfoToFbL);
+    depy += uicTitleLabelHeight + uicMargin;
+    positionKnobAndLabel(depx + xtraW, depy, lfoToFb, lfoToFbL);
+
+    depy = r.getY();
+    depx += uicKnobSize + uicMargin + 2 * xtraW;
+    positionTitleLabelAt(depx, depy, uicKnobSize + 2 * xtraW, overdriveTitle);
+    depy += uicTitleLabelHeight;
+    overdrive->setBounds(depx, depy, uicKnobSize + 2 * xtraW, uicLabelHeight);
+    // positionKnobAndLabel(depx + xtraW, r.getY() + uicTitleLabelHeight, overdrive, overdriveD);
 
     layoutModulation(p);
 }

diff --git a/src/ui/self-sub-panel.h b/src/ui/self-sub-panel.h
@@ -51,6 +51,10 @@ struct SelfSubPanel : juce::Component,
     std::unique_ptr<jcmp::MultiSwitch> envMul;
     std::unique_ptr<PatchDiscrete> envMulD;
 
+    std::unique_ptr<jcmp::ToggleButton> overdrive;
+    std::unique_ptr<PatchDiscrete> overdriveD;
+    std::unique_ptr<jcmp::RuledLabel> overdriveTitle;
+
     void setEnabledState();
 };
 } // namespace baconpaul::six_sines::ui