Release 0.1.8

resources/uk/co/majenko/audiobookrecorder/config.txt

@@ -1 +1 @@
-version=0.1.7
+version=0.1.8

src/uk/co/majenko/audiobookrecorder/AGC.java

@@ -25,11 +25,11 @@ public class AGC implements Effect {
         return getName();
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
         gain = 1d;
         for (int i = 0; i < samples.length; i++) {
-            double absSampleLeft = Math.abs(samples[i].left) * gain;
+            double absSampleLeft = Math.abs(samples[i][Sentence.LEFT]) * gain;
-            double absSampleRight = Math.abs(samples[i].right) * gain;
+            double absSampleRight = Math.abs(samples[i][Sentence.RIGHT]) * gain;
 
             if (absSampleLeft > ceiling) {
                 gain -= attack;
@@ -48,8 +48,8 @@ public class AGC implements Effect {
                 }
             }
 
-            samples[i].left *= gain;
+            samples[i][Sentence.LEFT] *= gain;
-            samples[i].right *= gain;
+            samples[i][Sentence.RIGHT] *= gain;
         }
     }
 

src/uk/co/majenko/audiobookrecorder/Amplifier.java

@@ -19,10 +19,10 @@ public class Amplifier implements Effect {
         return null;
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
         for (int i = 0; i < samples.length; i++) {
-            samples[i].left *= gain;
+            samples[i][Sentence.LEFT] *= gain;
-            samples[i].right *= gain;
+            samples[i][Sentence.RIGHT] *= gain;
         }
     }
 

src/uk/co/majenko/audiobookrecorder/AudiobookRecorder.java

@@ -92,6 +92,7 @@ public class AudiobookRecorder extends JFrame {
     JSpinner gainPercent;
     JCheckBox locked;
     JCheckBox attention;
+    JCheckBox rawAudio;
 
     JButtonSpacePlay reprocessAudioFFT;
     JButtonSpacePlay reprocessAudioPeak;
@@ -298,6 +299,7 @@ public class AudiobookRecorder extends JFrame {
         window = this;
 
         try {
+
             String clsname = "com.jtattoo.plaf.hifi.HiFiLookAndFeel";
             UIManager.setLookAndFeel(clsname);
 
@@ -312,8 +314,6 @@ public class AudiobookRecorder extends JFrame {
             Method mth = cls.getMethod("setCurrentTheme", cArg);
             mth.invoke(cls, p);
 
-
-
         } catch (Exception e) {
             e.printStackTrace();
         }
@@ -457,6 +457,11 @@ public class AudiobookRecorder extends JFrame {
         controlsLeft.add(reprocessAudioPeak);
         controlsLeft.add(normalizeAudio);
 
+        rawAudio = new JCheckBox("Raw Audio");
+        rawAudio.setFocusable(false);
+
+        controlsTop.add(rawAudio);
+
         locked = new JCheckBox("Phrase locked");
         locked.setFocusable(false);
 
@@ -1943,14 +1948,14 @@ public class AudiobookRecorder extends JFrame {
 
     public double getNoiseFloor() { 
         if (roomNoise == null) return 0;
-        Sample[] samples = roomNoise.getDoubleAudioData();
+        double[][] samples = roomNoise.getDoubleAudioData();
         if (samples == null) {
             return 0;
         }
         double ms = 0;
         for (int i = 0; i < samples.length; i++) {
-            if (Math.abs(samples[i].getMono()) > ms) {
+            if (Math.abs((samples[i][Sentence.LEFT] + samples[i][Sentence.RIGHT]) / 2d) > ms) {
-                ms = Math.abs(samples[i].getMono());
+                ms = Math.abs((samples[i][Sentence.LEFT] + samples[i][Sentence.RIGHT]) / 2d);
             }
         }
 
@@ -2115,15 +2120,15 @@ public class AudiobookRecorder extends JFrame {
                         }
                         data = s.getPCMData();
                         DefaultMutableTreeNode next = s.getNextSibling();
-                        if (next != null) {
+//                        if (next != null) {
-                            Thread t = new Thread(new Runnable() {
+//                            Thread t = new Thread(new Runnable() {
-                                public void run() {
+//                                public void run() {
-                                    Sentence ns = (Sentence)next;
+//                                    Sentence ns = (Sentence)next;
-                                    ns.getProcessedAudioData(); // Cache it
+//                                    ns.getProcessedAudioData(); // Cache it
-                                }
+//                                }
-                            });
+//                            });
-                            t.start();
+//                            t.start();
-                        }
+//                        }
                         for (int pos = 0; pos < data.length; pos += PLAYBACK_CHUNK_SIZE) {
                             sampleWaveform.setPlayMarker(pos / format.getFrameSize());
                             int l = data.length - pos;
@@ -2644,9 +2649,13 @@ public class AudiobookRecorder extends JFrame {
 
     public void updateWaveform() {
         if (selectedSentence != null) {
+            if (rawAudio.isSelected()) {
+                sampleWaveform.setData(selectedSentence.getRawAudioData());
+            } else {
                 sampleWaveform.setData(selectedSentence.getDoubleAudioData());
             }
         }
+    }
 
     public void loadEffects() {
         effects = new TreeMap<String,EffectGroup>();
@@ -2715,6 +2724,11 @@ public class AudiobookRecorder extends JFrame {
                     if (eff != null) {
                         group.addEffect(eff);
                     }
+                } else if (e.getTagName().equals("chain")) {
+                    Effect eff = (Effect)loadChain(e);
+                    if (eff != null) {
+                        group.addEffect(eff);
+                    }
                 } else if (e.getTagName().equals("group")) {
                     Effect eff = (Effect)loadEffectGroup(e);
                     if (eff != null) {
@@ -2815,6 +2829,11 @@ public class AudiobookRecorder extends JFrame {
                                 if (eff != null) {
                                     store.addEffect(eff);
                                 }
+                            } else if (ie.getTagName().equals("chain")) {
+                                Effect eff = (Effect)loadChain(ie);
+                                if (eff != null) {
+                                    store.addEffect(eff);
+                                }
                             } else if (ie.getTagName().equals("group")) {
                                 Effect eff = (Effect)loadEffectGroup(ie);
                                 if (eff != null) {
@@ -2850,6 +2869,11 @@ public class AudiobookRecorder extends JFrame {
         return a;
     }
 
+    public Chain loadChain(Element root) {
+        Chain c = new Chain(root.getAttribute("src"));
+        return c;
+    }
+
     public Pan loadPan(Element root) {
         Pan p = new Pan(Utils.s2d(root.getAttribute("pan")));
         return p;

src/uk/co/majenko/audiobookrecorder/Biquad.java

@@ -89,24 +89,24 @@ public class Biquad implements Effect {
         setPeakGain(peakGainDB);
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
         lz1 = 0d;
         lz2 = 0d;
         rz1 = 0d;
         rz2 = 0d;
-        for (Sample in : samples) {
+        for (double[] in : samples) {
-            double lout = in.left * a0 + lz1;
+            double lout = in[Sentence.LEFT] * a0 + lz1;
 
-            lz1 = in.left * a1 + lz2 - b1 * lout;
+            lz1 = in[Sentence.LEFT] * a1 + lz2 - b1 * lout;
-            lz2 = in.left * a2 - b2 * lout;
+            lz2 = in[Sentence.LEFT] * a2 - b2 * lout;
 
-            double rout = in.right * a0 + rz1;
+            double rout = in[Sentence.RIGHT] * a0 + rz1;
 
-            rz1 = in.right * a1 + rz2 - b1 * rout;
+            rz1 = in[Sentence.RIGHT] * a1 + rz2 - b1 * rout;
-            rz2 = in.right * a2 - b2 * rout;
+            rz2 = in[Sentence.RIGHT] * a2 - b2 * rout;
 
-            in.left = lout;
+            in[Sentence.LEFT] = lout;
-            in.right = rout;
+            in[Sentence.RIGHT] = rout;
         }
     }
     

src/uk/co/majenko/audiobookrecorder/Chain.java

@@ -0,0 +1,58 @@
+package uk.co.majenko.audiobookrecorder;
+
+import java.util.ArrayList;
+
+public class Chain implements Effect {
+    String target;
+
+    public Chain(String t) {
+        target = t;
+    }
+
+    public Chain() {
+        target = null;
+    }
+
+    public void process(double[][] samples) {
+        if (target != null) {
+            Effect t = AudiobookRecorder.window.effects.get(target);
+            if (t != null) {
+                t.process(samples);
+            }
+        }
+    }
+
+    public void setTarget(String t) {
+        target = t;
+    }
+
+    public String getTarget() {
+        return target;
+    }
+
+    public String toString() {
+        return "Chain to " + target;
+    }
+
+    public void dump() {
+        System.out.println(toString());
+    }
+
+    public void init(double sf) {
+        if (target != null) {
+            Effect t = AudiobookRecorder.window.effects.get(target);
+            if (t != null) {
+                t.init(sf);
+            }
+        }
+    }
+
+    public ArrayList<Effect> getChildEffects() {
+        return null;
+    }
+
+    public String getName() { 
+        return toString();
+    }
+
+}

src/uk/co/majenko/audiobookrecorder/Chapter.java

@@ -122,7 +122,7 @@ public class Chapter extends DefaultMutableTreeNode {
 
 
         AudioFormat sampleformat = AudiobookRecorder.window.roomNoise.getAudioFormat();
-        AudioFormat format = new AudioFormat(sampleformat.getSampleRate(), 16, 1, true, false);
+        AudioFormat format = new AudioFormat(sampleformat.getSampleRate(), 16, 2, true, false);
         byte[] data;
 
         int fullLength = 0;

src/uk/co/majenko/audiobookrecorder/Clipping.java

@@ -19,12 +19,12 @@ public class Clipping implements Effect {
         return null;
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
-        for (Sample sample : samples) {
+        for (double[] sample : samples) {
-            if (sample.left > clip) sample.left = clip;
+            if (sample[Sentence.LEFT] > clip) sample[Sentence.LEFT] = clip;
-            if (sample.left < -clip) sample.left = -clip;
+            if (sample[Sentence.LEFT] < -clip) sample[Sentence.LEFT] = -clip;
-            if (sample.right > clip) sample.right = clip;
+            if (sample[Sentence.RIGHT] > clip) sample[Sentence.RIGHT] = clip;
-            if (sample.right < -clip) sample.right = -clip;
+            if (sample[Sentence.RIGHT] < -clip) sample[Sentence.RIGHT] = -clip;
         }
     }
 

src/uk/co/majenko/audiobookrecorder/DelayLine.java

@@ -16,22 +16,28 @@ public class DelayLine implements Effect {
         return "Delay Line (" + delayLines.size() + " lines)";
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
-        Sample[] savedSamples = new Sample[samples.length];
+        double[][] savedSamples = new double[samples.length][2];
         for (int i = 0; i < samples.length; i++) {
-            savedSamples[i] = new Sample(samples[i].left, samples[i].right);
+            savedSamples[i][Sentence.LEFT] = samples[i][Sentence.LEFT];
+            savedSamples[i][Sentence.RIGHT] = samples[i][Sentence.RIGHT];
         }
         if (wetOnly) {
             for (int i = 0; i < samples.length; i++) {
-                samples[i].left = 0d;
+                samples[i][Sentence.LEFT] = 0d;
-                samples[i].right = 0d;
+                samples[i][Sentence.RIGHT] = 0d;
             }
         }
 
-        for (DelayLineStore d : delayLines) {
+        double[][] subSamples = new double[samples.length][2];
-            Sample[] subSamples = new Sample[samples.length];
         for (int i = 0; i < samples.length; i++) {
-                subSamples[i] = new Sample(savedSamples[i].left, savedSamples[i].right);
+            subSamples[i][Sentence.LEFT] = savedSamples[i][Sentence.LEFT];
+            subSamples[i][Sentence.RIGHT] = savedSamples[i][Sentence.RIGHT];
+        }
+        for (DelayLineStore d : delayLines) {
+            for (int i = 0; i < samples.length; i++) {
+                subSamples[i][Sentence.LEFT] = savedSamples[i][Sentence.LEFT];
+                subSamples[i][Sentence.RIGHT] = savedSamples[i][Sentence.RIGHT];
             }
 
             d.process(subSamples);
@@ -40,31 +46,31 @@ public class DelayLine implements Effect {
                 int off = i + d.getSamples();
                 if ((off < samples.length) && (off > 0)) {
 
-                    Sample ns = mix(samples[off], subSamples[i]);
+                    double[] ns = mix(samples[off], subSamples[i]);
-                    samples[off].left = ns.left;
+                    samples[off][Sentence.LEFT] = ns[Sentence.LEFT];
-                    samples[off].right = ns.right;
+                    samples[off][Sentence.RIGHT] = ns[Sentence.RIGHT];
                 }
             }
         }
     }
 
-    Sample mix(Sample a, Sample b) {
+    double[] mix(double[] a, double[] b) {
-        Sample out = new Sample(0, 0);
+        double[] out = new double[2];
 
-        if ((a.left < 0) && (b.left < 0)) {
+        if ((a[Sentence.LEFT] < 0) && (b[Sentence.LEFT] < 0)) {
-            out.left = (a.left + b.left) - (a.left * b.left);
+            out[Sentence.LEFT] = (a[Sentence.LEFT] + b[Sentence.LEFT]) - (a[Sentence.LEFT] * b[Sentence.LEFT]);
-        } else if ((a.left > 0) && (b.left > 0)) {
+        } else if ((a[Sentence.LEFT] > 0) && (b[Sentence.LEFT] > 0)) {
-            out.left = (a.left + b.left) - (a.left * b.left);
+            out[Sentence.LEFT] = (a[Sentence.LEFT] + b[Sentence.LEFT]) - (a[Sentence.LEFT] * b[Sentence.LEFT]);
         } else {
-            out.left = a.left + b.left;
+            out[Sentence.LEFT] = a[Sentence.LEFT] + b[Sentence.LEFT];
         }
 
-        if ((a.right < 0) && (b.right < 0)) {
+        if ((a[Sentence.RIGHT] < 0) && (b[Sentence.RIGHT] < 0)) {
-            out.right = (a.right + b.right) - (a.right * b.right);
+            out[Sentence.RIGHT] = (a[Sentence.RIGHT] + b[Sentence.RIGHT]) - (a[Sentence.RIGHT] * b[Sentence.RIGHT]);
-        } else if ((a.right > 0) && (b.right > 0)) {
+        } else if ((a[Sentence.RIGHT] > 0) && (b[Sentence.RIGHT] > 0)) {
-            out.right = (a.right + b.right) - (a.right * b.right);
+            out[Sentence.RIGHT] = (a[Sentence.RIGHT] + b[Sentence.RIGHT]) - (a[Sentence.RIGHT] * b[Sentence.RIGHT]);
         } else {
-            out.right = a.right + b.right;
+            out[Sentence.RIGHT] = a[Sentence.RIGHT] + b[Sentence.RIGHT];
         }
 
         return out;

src/uk/co/majenko/audiobookrecorder/DelayLineStore.java

@@ -24,21 +24,21 @@ public class DelayLineStore {
         effects = new ArrayList<Effect>();
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
         for (Effect e : effects) {
             e.process(samples);
         }
 
-        for (Sample sample : samples) {
+        for (double[] sample : samples) {
-            sample.left *= gain;
+            sample[Sentence.LEFT] *= gain;
-            sample.right *= gain;
+            sample[Sentence.RIGHT] *= gain;
 
             if (pan < 0) {
                 double p = 1 + pan;
-                sample.right *= p;
+                sample[Sentence.RIGHT] *= p;
             } else {
                 double p = 1 - pan;
-                sample.left *= p;
+                sample[Sentence.LEFT] *= p;
             }
         }
     }

src/uk/co/majenko/audiobookrecorder/Effect.java

@@ -3,7 +3,7 @@ package uk.co.majenko.audiobookrecorder;
 import java.util.ArrayList;
 
 public interface Effect  {
-    public void process(Sample[] samples);
+    public void process(double[][] samples);
     public String getName();
     public ArrayList<Effect> getChildEffects();
     public void dump();

src/uk/co/majenko/audiobookrecorder/EffectGroup.java

@@ -16,7 +16,7 @@ public class EffectGroup implements Effect {
         effects = new ArrayList<Effect>();
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
         for (Effect e : effects) {
             e.process(samples);
         }

src/uk/co/majenko/audiobookrecorder/LFO.java

@@ -22,8 +22,8 @@ public class LFO implements Effect {
         phase = p;
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
-        for (Sample sample : samples) {
+        for (double[] sample : samples) {
             double v = Math.sin(phase);
             phase += sampleStep;
             if (phase > (Math.PI * 2d)) {
@@ -38,8 +38,8 @@ public class LFO implements Effect {
             v *= depth;
 
             // Apply it to the sample
-            sample.left += (sample.left * v);
+            sample[Sentence.LEFT] += (sample[Sentence.LEFT] * v);
-            sample.right += (sample.right * v);
+            sample[Sentence.RIGHT] += (sample[Sentence.RIGHT] * v);
         }
     }
 

src/uk/co/majenko/audiobookrecorder/Options.java

@@ -775,9 +775,10 @@ public class Options extends JDialog {
     }
 
     public static KVPair[] getTrimMethods() {
-        KVPair[] pairs = new KVPair[2];
+        KVPair[] pairs = new KVPair[3];
-        pairs[0] = new KVPair<String, String>("peak", "Peak Amplitude");
+        pairs[0] = new KVPair<String, String>("none", "None");
-        pairs[1] = new KVPair<String, String>("fft", "FFT Analysis");
+        pairs[1] = new KVPair<String, String>("peak", "Peak Amplitude");
+        pairs[2] = new KVPair<String, String>("fft", "FFT Analysis");
         return pairs;
     }
 

src/uk/co/majenko/audiobookrecorder/Pan.java

@@ -19,14 +19,14 @@ public class Pan implements Effect {
         return null;
     }
 
-    public void process(Sample[] samples) {
+    public void process(double[][] samples) {
-        for (Sample sample : samples) {
+        for (double[] sample : samples) {
             if (pan < 0) {
                 double p = 1 + pan;
-                sample.right *= p;
+                sample[Sentence.RIGHT] *= p;
             } else {
                 double p = 1 - pan;
-                sample.left *= p;
+                sample[Sentence.LEFT] *= p;
             }
         }
     }

src/uk/co/majenko/audiobookrecorder/Sample.java

@@ -1,28 +0,0 @@
-package uk.co.majenko.audiobookrecorder;
-
-public class Sample {
-    public double left;
-    public double right;
-
-    public Sample(double m) {
-        left = m;
-        right = m;
-    }
-
-    public Sample(double l, double r) {
-        left = l;
-        right = r;
-    }
-
-    public double getLeft() {
-        return left;
-    }
-
-    public double getRight() {
-        return right;
-    }
-
-    public double getMono() {
-        return (left + right) / 2.0;
-    }
-}

src/uk/co/majenko/audiobookrecorder/Sentence.java

@@ -58,13 +58,17 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
     public void setOverrideText(String s) { overrideText = s; }
     public String getOverrideText() { return overrideText; }
 
+    public static final int LEFT = 0;
+    public static final int RIGHT = 1;
+
     TargetDataLine line;
     AudioInputStream inputStream;
     AudioFormat storedFormat = null;
     double storedLength = -1d;
 
-    Sample[] audioData = null;
+    double[][] audioData = null;
-    Sample[] processedAudio = null;
+
+//    double[][] processedAudio = null;
 
     RecordingThread recordingThread;
 
@@ -134,7 +138,6 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
         }
     }
 
-    
     public Sentence() {
         super("");
         id = UUID.randomUUID().toString();
@@ -173,19 +176,21 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
             try {
                 Thread.sleep(10);
             } catch (Exception e) {
+                e.printStackTrace();
             }
         }
 
         audioData = null;
+//        processedAudio = null;
         storedFormat = null;
         storedLength = -1;
 
         if (!id.equals("room-noise")) {
             String tm = Options.get("audio.recording.trim");
             if (tm.equals("peak")) {
-                autoTrimSamplePeak();
+                autoTrimSamplePeak(true);
             } else if (tm.equals("fft")) {
-                autoTrimSampleFFT();
+                autoTrimSampleFFT(true);
             }
             if (Options.getBoolean("process.sphinx")) {
                 recognise();
@@ -195,40 +200,19 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
 
     public static final int FFTBuckets = 1024;
 
-    public double[][] getFFTProfile() {
-        double[] real = new double[FFTBuckets];
-        double[] imag = new double[FFTBuckets];
-
-        Sample[] samples = getProcessedAudioData();
-        int slices = (samples.length / FFTBuckets) + 1;
-
-        double[][] out = new double[slices][];
-
-        int slice = 0;
-
-        for (int i = 0; i < samples.length; i += FFTBuckets) {
-            for (int j = 0; j < FFTBuckets; j++) {
-                if (i + j < samples.length) {
-                    real[j] = samples[i+j].getMono();
-                    imag[j] = 0;
-                } else {
-                    real[j] = 0;
-                    imag[j] = 0;
-                }
-            }
-
-            out[slice++] = FFT.fft(real, imag, true);
-        }
-
-        return out;
-        
-        
-    }
-
     public void autoTrimSampleFFT() {
+        autoTrimSampleFFT(false);
+    }
+
+    public void autoTrimSampleFFT(boolean useRaw) {
         crossStartOffset = -1;
         crossEndOffset = -1;
-        Sample[] samples = getProcessedAudioData();
+        double[][] samples;
+        if (useRaw) {
+            samples = getRawAudioData();
+        } else {
+            samples = getProcessedAudioData();
+        }
         if (samples == null) return;
 
         int blocks = samples.length / 4096 + 1;
@@ -242,7 +226,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
 
             for (int j = 0; j < 4096; j++) {
                 if (i + j < samples.length) {
-                    real[j] = samples[i+j].getMono();
+                    real[j] = (samples[i+j][LEFT] + samples[i+j][RIGHT]) / 2d;
                     imag[j] = 0;
                 } else {
                     real[j] = 0;
@@ -309,9 +293,18 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
     }
 
     public void autoTrimSamplePeak() {
+        autoTrimSamplePeak(false);
+    }
+
+    public void autoTrimSamplePeak(boolean useRaw) {
         crossStartOffset = -1;
         crossEndOffset = -1;
-        Sample[] samples = getProcessedAudioData();
+        double[][] samples;
+        if (useRaw) {
+            samples = getRawAudioData();
+        } else {
+            samples = getProcessedAudioData();
+        }
         if (samples == null) return;
         double noiseFloor = AudiobookRecorder.window.getNoiseFloor();
         noiseFloor *= 1.1;
@@ -319,7 +312,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
         // Find start
         for (int i = 0; i < samples.length; i++) {
             startOffset = i;
-            if (Math.abs(samples[i].getMono()) > noiseFloor) {
+            if (Math.abs((samples[i][LEFT] + samples[i][RIGHT])/2d) > noiseFloor) {
                 startOffset --;
                 if (startOffset < 0) startOffset = 0;
                 break;
@@ -334,7 +327,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
 
         for (int i = samples.length-1; i >= 0; i--) {
             endOffset = i;
-            if (Math.abs(samples[i].getMono()) > noiseFloor) {
+            if (Math.abs((samples[i][LEFT] + samples[i][RIGHT])/2d) > noiseFloor) {
                 endOffset ++;
                 if (endOffset >= samples.length-1) endOffset = samples.length-1;
                 break;
@@ -565,7 +558,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
 
     public void clearCache() {
         audioData = null;
-        processedAudio = null;
+//        processedAudio = null;
     }
 
     public boolean lockedInCache() {
@@ -573,7 +566,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
     }
 
     public int findNearestZeroCrossing(int pos, int range) {
-        Sample[] data = getProcessedAudioData();
+        double[][] data = getProcessedAudioData();
         if (data == null) return 0;
         if (data.length == 0) return 0;
 
@@ -583,19 +576,19 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
         int backwards = pos;
         int forwards = pos;
 
-        double backwardsPrev = data[backwards].getMono();
+        double backwardsPrev = (data[backwards][LEFT] + data[backwards][RIGHT]) / 2d;
-        double forwardsPrev = data[forwards].getMono();
+        double forwardsPrev = (data[forwards][LEFT] + data[forwards][RIGHT]) / 2d;
 
         while (backwards > 0 || forwards < data.length-2) {
 
             if (forwards < data.length-2) forwards++;
             if (backwards > 0) backwards--;
 
-            if (backwardsPrev >= 0 && data[backwards].getMono() < 0) { // Found one!
+            if (backwardsPrev >= 0 && ((data[backwards][LEFT] + data[backwards][RIGHT]) / 2d) < 0) { // Found one!
                 return backwards;
             }
 
-            if (forwardsPrev < 0 && data[forwards].getMono() >= 0) {
+            if (forwardsPrev < 0 && ((data[forwards][LEFT] + data[forwards][RIGHT]) / 2d) >= 0) {
                 return forwards;
             }
 
@@ -604,8 +597,8 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
                 return pos;
             }
 
-            backwardsPrev = data[backwards].getMono();
+            backwardsPrev = (data[backwards][LEFT] + data[backwards][RIGHT]) / 2d;
-            forwardsPrev = data[forwards].getMono();
+            forwardsPrev = (data[forwards][LEFT] + data[forwards][RIGHT]) / 2d;
         }
         return pos;
     }
@@ -649,15 +642,15 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
     public double getPeakValue() {
         double oldGain = gain;
         gain = 1.0d;
-        Sample[] samples = getProcessedAudioData();
+        double[][] samples = getProcessedAudioData();
         gain = oldGain;
         if (samples == null) {
             return 0;
         }
         double ms = 0;
         for (int i = 0; i < samples.length; i++) {
-            if (Math.abs(samples[i].getMono()) > ms) {
+            if (Math.abs((samples[i][LEFT] + samples[i][RIGHT]) / 2d) > ms) {
-                ms = Math.abs(samples[i].getMono());
+                ms = Math.abs((samples[i][LEFT] + samples[i][RIGHT]) / 2d);
             }
         }
         return ms;
@@ -860,14 +853,14 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
         AudiobookRecorder.window.updateWaveform();
     }
 
-    public Sample[] getDoubleDataS16LE(AudioInputStream s, AudioFormat format) throws IOException {
+    public double[][] getDoubleDataS16LE(AudioInputStream s, AudioFormat format) throws IOException {
         long len = s.getFrameLength();
         int frameSize = format.getFrameSize();
         int chans = format.getChannels();
         int bytes = frameSize / chans;
 
         byte[] frame = new byte[frameSize];
-        Sample[] samples = new Sample[(int)len];
+        double[][] samples = new double[(int)len][2];
 
         for (long fno = 0; fno < len; fno++) {
 
@@ -881,27 +874,29 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
                 int right = (rh << 8) | rl;
                 if ((left & 0x8000) == 0x8000) left |= 0xFFFF0000;
                 if ((right & 0x8000) == 0x8000) right |= 0xFFFF0000;
-                samples[(int)fno] = new Sample((double)left / 32768d, (double)right / 32768d);
+                samples[(int)fno][LEFT] = (double)left / 32768d;
+                samples[(int)fno][RIGHT] = (double)right / 32768d;
             } else {
                 int l = frame[0] >= 0 ? frame[0] : 256 + frame[0];
                 int h = frame[1] >= 0 ? frame[1] : 256 + frame[1];
                 int mono = (h << 8) | l;
                 if ((mono & 0x8000) == 0x8000) mono |= 0xFFFF0000;
-                samples[(int)fno] = new Sample((double)mono / 32768d);
+                samples[(int)fno][LEFT] = (double)mono / 32768d;
+                samples[(int)fno][RIGHT] = (double)mono / 32768d;
             }
         }
 
         return samples;
     }
 
-    public Sample[] getDoubleDataS24LE(AudioInputStream s, AudioFormat format) throws IOException {
+    public double[][] getDoubleDataS24LE(AudioInputStream s, AudioFormat format) throws IOException {
         long len = s.getFrameLength();
         int frameSize = format.getFrameSize();
         int chans = format.getChannels();
         int bytes = frameSize / chans;
 
         byte[] frame = new byte[frameSize];
-        Sample[] samples = new Sample[(int)len];
+        double[][] samples = new double[(int)len][2];
 
         for (long fno = 0; fno < len; fno++) {
 
@@ -918,14 +913,16 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
                 int right = (rh << 16) | (rm << 8) | rl;
                 if ((left & 0x800000) == 0x800000) left |= 0xFF000000;
                 if ((right & 0x800000) == 0x800000) right |= 0xFF000000;
-                samples[(int)fno] = new Sample((double)left / 8388608d, (double)right / 8388608d);
+                samples[(int)fno][LEFT] = (double)left / 8388608d;
+                samples[(int)fno][RIGHT] = (double)right / 8388608d;
             } else {
                 int l = frame[0] >= 0 ? frame[0] : 256 + frame[0];
                 int m = frame[1] >= 0 ? frame[1] : 256 + frame[1];
                 int h = frame[2] >= 0 ? frame[2] : 256 + frame[2];
                 int mono = (h << 16) | (m << 8) | l;
                 if ((mono & 0x800000) == 0x800000) mono |= 0xFF000000;
-                samples[(int)fno] = new Sample((double)mono / 8388608d);
+                samples[(int)fno][LEFT] = (double)mono / 8388608d;
+                samples[(int)fno][RIGHT] = (double)mono / 8388608d;
             }
         }
 
@@ -940,7 +937,7 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
             AudioInputStream s = AudioSystem.getAudioInputStream(f);
             AudioFormat format = getAudioFormat();
 
-            Sample[] samples = null;
+            double[][] samples = null;
 
             switch (format.getSampleSizeInBits()) {
                 case 16:
@@ -959,14 +956,20 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
         }
     }
 
-    public Sample[] getProcessedAudioData() {
+    synchronized public double[][] getRawAudioData() {
         loadFile();
-        if (processedAudio != null) return processedAudio;
+        return audioData;
+    }
+
+    synchronized public double[][] getProcessedAudioData() {
+        loadFile();
+//        if (processedAudio != null) return processedAudio;
 
         if (audioData == null) return null;
-        processedAudio = new Sample[audioData.length];
+        double[][] processedAudio = new double[audioData.length][2];
         for (int i = 0; i < audioData.length; i++) {
-            processedAudio[i] = new Sample(audioData[i].left, audioData[i].right);
+            processedAudio[i][LEFT] = audioData[i][LEFT];
+            processedAudio[i][RIGHT] = audioData[i][RIGHT];
         }
         // Add processing in here.
 
@@ -992,43 +995,44 @@ public class Sentence extends DefaultMutableTreeNode implements Cacheable {
         
         // Add final master gain stage
         for (int i = 0; i < processedAudio.length; i++) {
-            processedAudio[i].left = processedAudio[i].left * gain;
+            processedAudio[i][LEFT] *= gain;
-            processedAudio[i].right = processedAudio[i].right * gain;
+            processedAudio[i][RIGHT] *= gain;
         }
         return processedAudio;
     }
 
-    public Sample[] getDoubleAudioData() {
+    public double[][] getDoubleAudioData() {
         return getProcessedAudioData();
     }
 
-    public Sample[] getCroppedAudioData() {
+    public double[][] getCroppedAudioData() {
-        Sample[] inSamples = getDoubleAudioData();
+        double[][] inSamples = getDoubleAudioData();
         if (inSamples == null) return null;
         updateCrossings();
 
         int length = crossEndOffset - crossStartOffset;
 
-        Sample[] samples = new Sample[length];
+        double[][] samples = new double[length][2];
         for (int i = 0; i < length; i++) {
-            samples[i] = inSamples[crossStartOffset + i];
+            samples[i][LEFT] = inSamples[crossStartOffset + i][LEFT];
+            samples[i][RIGHT] = inSamples[crossStartOffset + i][RIGHT];
         }
         return samples;
     }
 
     public byte[] getPCMData() {
-        Sample[] croppedData = getCroppedAudioData();
+        double[][] croppedData = getCroppedAudioData();
         if (croppedData == null) return null;
         int length = croppedData.length;
         byte[] pcmData = new byte[length * 4];
         for (int i = 0; i < length; i++) {
-            double sd = croppedData[i].left * 32768d;
+            double sd = croppedData[i][LEFT] * 32768d;
             int si = (int)sd;
             if (si > 32767) si = 32767;
             if (si < -32768) si = -32768;
             pcmData[i * 4] = (byte)(si & 0xFF);
             pcmData[(i * 4) + 1] = (byte)((si & 0xFF00) >> 8);
-            sd = croppedData[i].right * 32768d;
+            sd = croppedData[i][RIGHT] * 32768d;
             si = (int)sd;
             if (si > 32767) si = 32767;
             if (si < -32768) si = -32768;

src/uk/co/majenko/audiobookrecorder/Waveform.java

@@ -9,7 +9,7 @@ import javax.sound.sampled.*;
 
 public class Waveform extends JPanel implements MouseListener, MouseMotionListener {
 
-    Sample[] samples = null;
+    double[][] samples = null;
 
     int leftMarker = 0;
     int rightMarker = 0;
@@ -92,7 +92,7 @@ public class Waveform extends JPanel implements MouseListener, MouseMotionListen
                 double lmax = 0;
 
                 for (int o = 0; o < step; o++) {
-                    double sample = samples[offset + (n * step) + o].getMono();
+                    double sample = (samples[offset + (n * step) + o][Sentence.LEFT] + samples[offset + (n * step) + o][Sentence.RIGHT]) / 2d;
                     if (sample >= 0) {
                         have += sample;
                         hcnt++;
@@ -189,7 +189,7 @@ public class Waveform extends JPanel implements MouseListener, MouseMotionListen
         repaint();
     }
 
-    public void setData(Sample[] s) {
+    public void setData(double[][] s) {
         samples = s;
         playMarker = 0;
         repaint();