From f369bf7d8a86a22b3fa4250818f42ae95a37db7b Mon Sep 17 00:00:00 2001
From: Caleb Kemere <ckemere@gmail.com>
Date: Sat, 30 Nov 2013 13:18:33 -0600
Subject: [PATCH] Noise gate implemented next to volume on top of screen. Works
but levels are too abrupt.
---
Source/Processors/AudioNode.cpp | 24 ++++++++++++++++++++---
Source/Processors/AudioNode.h | 1 +
Source/Processors/Editors/AudioEditor.cpp | 18 ++++++++++++++---
Source/Processors/Editors/AudioEditor.h | 3 ++-
4 files changed, 39 insertions(+), 7 deletions(-)
diff --git a/Source/Processors/AudioNode.cpp b/Source/Processors/AudioNode.cpp
index 988381f32..cf5b9ae43 100755
--- a/Source/Processors/AudioNode.cpp
+++ b/Source/Processors/AudioNode.cpp
@@ -26,7 +26,7 @@
#include "Channel.h"
AudioNode::AudioNode()
- : GenericProcessor("Audio Node"), audioEditor(0), volume(0.00001f),
+ : GenericProcessor("Audio Node"), audioEditor(0), volume(0.00001f), noiseGateLevel(0.0f),
bufferA(2,10000),
bufferB(2,10000)
{
@@ -136,6 +136,13 @@ void AudioNode::setParameter(int parameterIndex, float newValue)
// volume level
volume = newValue*0.1f;
+ }
+ else if (parameterIndex == 2)
+ {
+ // noiseGateLevel level
+ noiseGateLevel = newValue*0.01f; // not sure about this scaling???
+ std::cout << "Changed noiseGateLevel: " << noiseGateLevel << std::endl;
+
}
else if (parameterIndex == 100)
{
@@ -316,6 +323,7 @@ void AudioNode::process(AudioSampleBuffer& buffer,
remainingSamples, // number of samples
gain // gain to apply
);
+
}
orphanedSamples = nSamples - samplesToCopy2;
@@ -334,7 +342,7 @@ void AudioNode::process(AudioSampleBuffer& buffer,
gain // gain to apply
);
- backupBuffer->addFrom(0, // destination channel
+ backupBuffer->addFrom(0, // destination channel
samplesInBackupBuffer, // destination start sample
buffer, // source
i, // source channel
@@ -344,7 +352,17 @@ void AudioNode::process(AudioSampleBuffer& buffer,
);
}
-
+
+ // HERE IS WHERE WE NEED TO NOISE GATE
+ float *leftChannelData = buffer.getSampleData(0);
+ float *rightChannelData = buffer.getSampleData(1);
+ float gateLevel = noiseGateLevel/(float(0x7fff));
+ for (int i=0; i < buffer.getNumSamples(); i++) {
+ if (abs(leftChannelData[i]) < gateLevel)
+ leftChannelData[i] = 0;
+ if (abs(rightChannelData[i]) < gateLevel)
+ rightChannelData[i] = 0;
+ }
}
}
diff --git a/Source/Processors/AudioNode.h b/Source/Processors/AudioNode.h
index e0f6a901a..8a7d20b2c 100755
--- a/Source/Processors/AudioNode.h
+++ b/Source/Processors/AudioNode.h
@@ -103,6 +103,7 @@ private:
Array<int> leftChan;
Array<int> rightChan;
float volume;
+ float noiseGateLevel;
/** An array of pointers to the channels that feed into the AudioNode. */
Array<Channel*> channelPointers;
diff --git a/Source/Processors/Editors/AudioEditor.cpp b/Source/Processors/Editors/AudioEditor.cpp
index 054ddbcb5..c66463b34 100755
--- a/Source/Processors/Editors/AudioEditor.cpp
+++ b/Source/Processors/Editors/AudioEditor.cpp
@@ -98,13 +98,21 @@ AudioEditor::AudioEditor(AudioNode* owner)
//
addAndMakeVisible(audioWindowButton);
- volumeSlider = new Slider("High-Cut Slider");
+ volumeSlider = new Slider("Volume Slider");
volumeSlider->setRange(0,100,1);
volumeSlider->addListener(this);
volumeSlider->setTextBoxStyle(Slider::NoTextBox,
false, 0, 0);
addAndMakeVisible(volumeSlider);
+ noiseGateSlider = new Slider("Noise Gate Slider");
+ noiseGateSlider->setRange(0,100,1);
+ noiseGateSlider->addListener(this);
+ noiseGateSlider->setTextBoxStyle(Slider::NoTextBox,
+ false, 0, 0);
+ addAndMakeVisible(noiseGateSlider);
+
+
//acw = new AudioConfigurationWindow(getAudioComponent()->deviceManager, (Button*) audioWindowButton);
}
@@ -119,7 +127,8 @@ void AudioEditor::resized()
{
muteButton->setBounds(0,0,30,25);
volumeSlider->setBounds(35,0,50,getHeight());
- audioWindowButton->setBounds(90,0,200,getHeight());
+ noiseGateSlider->setBounds(85,0,50,getHeight());
+ audioWindowButton->setBounds(140,0,200,getHeight());
}
bool AudioEditor::keyPressed(const KeyPress& key)
@@ -208,7 +217,10 @@ void AudioEditor::buttonClicked(Button* button)
void AudioEditor::sliderValueChanged(Slider* slider)
{
- getAudioProcessor()->setParameter(1,slider->getValue());
+ if (slider == volumeSlider)
+ getAudioProcessor()->setParameter(1,slider->getValue());
+ else if (slider == noiseGateSlider)
+ getAudioProcessor()->setParameter(2,slider->getValue());
}
void AudioEditor::paint(Graphics& g)
diff --git a/Source/Processors/Editors/AudioEditor.h b/Source/Processors/Editors/AudioEditor.h
index 7120d4b25..6891cce8f 100755
--- a/Source/Processors/Editors/AudioEditor.h
+++ b/Source/Processors/Editors/AudioEditor.h
@@ -131,7 +131,8 @@ private:
AudioConfigurationWindow* acw;
Slider* volumeSlider;
-
+ Slider* noiseGateSlider;
+
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR(AudioEditor);
};
--
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