1 files changed, 0 insertions, 75 deletions
diff --git a/src/com/jsyn/unitgen/BrownNoise.java b/src/com/jsyn/unitgen/BrownNoise.java
deleted file mode 100644
index e70b7f4..0000000
--- a/src/com/jsyn/unitgen/BrownNoise.java
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright 1997 Phil Burk, Mobileer Inc
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jsyn.unitgen;
-
-import com.jsyn.ports.UnitInputPort;
-import com.jsyn.ports.UnitOutputPort;
-import com.jsyn.util.PseudoRandom;
-
-/**
- * BrownNoise unit. This unit uses a pseudo-random number generator to produce a noise related to
- * Brownian Motion. A DC blocker is used to prevent runaway drift.
- * 
- * <pre>
- * <code>
- * output = (previous * (1.0 - damping)) + (random * amplitude) 
- * </code>
- * </pre>
- * 
- * The output drifts quite a bit and will generally exceed the range of +/1 amplitude.
- * 
- * @author (C) 1997-2011 Phil Burk, Mobileer Inc
- * @see WhiteNoise
- * @see RedNoise
- * @see PinkNoise
- */
-public class BrownNoise extends UnitGenerator implements UnitSource {
-    private PseudoRandom randomNum;
-    /** Increasing the damping will effectively increase the cutoff 
-     * frequency of a high pass filter that is used to block DC bias.
-     * Warning: setting this too close to zero can result in very large output values.
-     */
-    public UnitInputPort damping;
-    public UnitInputPort amplitude;
-    public UnitOutputPort output;
-    private double previous;
-
-    public BrownNoise() {
-        randomNum = new PseudoRandom();
-        addPort(damping = new UnitInputPort("Damping"));
-        damping.setup(0.0001, 0.01, 0.1);
-        addPort(amplitude = new UnitInputPort("Amplitude", UnitOscillator.DEFAULT_AMPLITUDE));
-        addPort(output = new UnitOutputPort("Output"));
-    }
-
-    @Override
-    public void generate(int start, int limit) {
-        double[] amplitudes = amplitude.getValues();
-        double[] outputs = output.getValues();
-        double damper = 1.0 - damping.getValues()[0];
-
-        for (int i = start; i < limit; i++) {
-            double r = randomNum.nextRandomDouble() * amplitudes[i];
-            outputs[i] = previous = (damper * previous) + r;
-        }
-    }
-
-    @Override
-    public UnitOutputPort getOutput() {
-        return output;
-    }
-}