public static void main(String[] args) throws Exception { for (int i = 0; i < args.length; i++) { AudioInputStream ais = AudioSystem.getAudioInputStream(new File(args[i])); SilenceMarker signalGraph = new SilenceMarker(ais); signalGraph.showInJFrame(args[i], true, false); } } }
public SilenceMarker(double[] signal, int samplingRate, int width, int height) { initialise(new BufferedDoubleDataSource(signal), samplingRate, width, height); }
protected void initialise(DoubleDataSource signal, int samplingRate, int width, int height) { showYAxis = false; showXAxis = false; paddingTop = 5; paddingBottom = 5; double frameDuration = 0.01; // seconds int frameLength = (int) (samplingRate * frameDuration); int frameShift = frameLength / 2; if (frameLength % 2 == 0) frameLength++; // make sure frame length is odd EnergyAnalyser energyAnalyser = new EnergyAnalyser(signal, frameLength, frameShift, samplingRate); double silenceCutoff = energyAnalyser.getSilenceCutoff(); FrameBasedAnalyser.FrameAnalysisResult[] results = energyAnalyser.analyseAllFrames(); double[] silenceData = new double[results.length]; for (int i = 0; i < results.length; i++) { double energy = ((Double) results[i].get()).doubleValue(); if (energy <= silenceCutoff) silenceData[i] = 0.; else silenceData[i] = 1.; } super.initialise(width, height, 0, (double) frameShift / samplingRate, silenceData); histogramBorderColor = Color.LIGHT_GRAY; setPrimaryDataSeriesStyle(histogramBorderColor, DRAW_HISTOGRAM, -1); }
energyGraph = new EnergyGraph(signal, samplingRate, graphWidth, height * 15 / 100); allGraphs.add(energyGraph); silenceMarker = new SilenceMarker(signal, samplingRate, graphWidth, height * 5 / 100); allGraphs.add(silenceMarker);
protected void initialise(DoubleDataSource signal, int samplingRate, int width, int height) { showYAxis = false; showXAxis = false; paddingTop = 5; paddingBottom = 5; double frameDuration = 0.01; // seconds int frameLength = (int) (samplingRate * frameDuration); int frameShift = frameLength / 2; if (frameLength % 2 == 0) frameLength++; // make sure frame length is odd EnergyAnalyser energyAnalyser = new EnergyAnalyser(signal, frameLength, frameShift, samplingRate); double silenceCutoff = energyAnalyser.getSilenceCutoff(); FrameBasedAnalyser.FrameAnalysisResult[] results = energyAnalyser.analyseAllFrames(); double[] silenceData = new double[results.length]; for (int i = 0; i < results.length; i++) { double energy = ((Double) results[i].get()).doubleValue(); if (energy <= silenceCutoff) silenceData[i] = 0.; else silenceData[i] = 1.; } super.initialise(width, height, 0, (double) frameShift / samplingRate, silenceData); histogramBorderColor = Color.LIGHT_GRAY; setPrimaryDataSeriesStyle(histogramBorderColor, DRAW_HISTOGRAM, -1); }
energyGraph = new EnergyGraph(signal, samplingRate, graphWidth, height * 15 / 100); allGraphs.add(energyGraph); silenceMarker = new SilenceMarker(signal, samplingRate, graphWidth, height * 5 / 100); allGraphs.add(silenceMarker);
public static void main(String[] args) throws Exception { for (int i = 0; i < args.length; i++) { AudioInputStream ais = AudioSystem.getAudioInputStream(new File(args[i])); SilenceMarker signalGraph = new SilenceMarker(ais); signalGraph.showInJFrame(args[i], true, false); } } }
public SilenceMarker(double[] signal, int samplingRate, int width, int height) { initialise(new BufferedDoubleDataSource(signal), samplingRate, width, height); }
public SilenceMarker(AudioInputStream ais, int width, int height) { super(); if (!ais.getFormat().getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)) { ais = AudioSystem.getAudioInputStream(AudioFormat.Encoding.PCM_SIGNED, ais); } if (ais.getFormat().getChannels() > 1) { throw new IllegalArgumentException("Can only deal with mono audio signals"); } int samplingRate = (int) ais.getFormat().getSampleRate(); DoubleDataSource signal = new AudioDoubleDataSource(ais); initialise(signal, samplingRate, width, height); }
public SilenceMarker(AudioInputStream ais, int width, int height) { super(); if (!ais.getFormat().getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)) { ais = AudioSystem.getAudioInputStream(AudioFormat.Encoding.PCM_SIGNED, ais); } if (ais.getFormat().getChannels() > 1) { throw new IllegalArgumentException("Can only deal with mono audio signals"); } int samplingRate = (int) ais.getFormat().getSampleRate(); DoubleDataSource signal = new AudioDoubleDataSource(ais); initialise(signal, samplingRate, width, height); }