google code mfcc java 实现

/* Please feel free to use/modify this class. If you give me credit by keeping this information or by sending me an email before using it or by reporting bugs , i will be happy. Email : gtiwari333@gmail.com, Blog : http://ganeshtiwaridotcomdotnp.blogspot.com/ */ package org.ioe.tprsa.audio; import java.awt.BasicStroke; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.Font; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Toolkit; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.font.FontRenderContext; import java.awt.font.LineBreakMeasurer; import java.awt.font.TextAttribute; import java.awt.font.TextLayout; import java.awt.geom.Line2D; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import java.text.AttributedCharacterIterator; import java.text.AttributedString; import java.util.Vector; import javax.sound.sampled.AudioFileFormat; import javax.sound.sampled.AudioFormat; import javax.sound.sampled.AudioInputStream; import javax.sound.sampled.AudioSystem; import javax.sound.sampled.DataLine; import javax.sound.sampled.LineUnavailableException; import javax.sound.sampled.SourceDataLine; import javax.sound.sampled.TargetDataLine; import javax.swing.BoxLayout; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.border.CompoundBorder; import javax.swing.border.EmptyBorder; import javax.swing.border.SoftBevelBorder; import org.ioe.tprsa.util.MessageType; /** * Capture/Playback sample. Record audio in different formats and then playback * the recorded audio. The captured audio can be saved either as a WAVE, AU or * AIFF. Or load an audio file for streaming playback. * * @version @(#)Manual.java 1.11 99/12/03 * @version 2.1 * @author Brian Lichtenwalter-- visualization and capture * @modified-by Ganesh --> made a reusable class */ public class JSoundCapture extends JPanel implements ActionListener { private static final long serialVersionUID = 1L; byte[] audioBytes = null; float[] audioData = null; final int BUFFER_SIZE = 16384; int counter = 0; FormatControlConf formatControls = new FormatControlConf(); // @jve:decl-index=0: Capture capture = new Capture(); // @jve:decl-index=0: Playback playback = new Playback(); // @jve:decl-index=0: WaveData wd; AudioInputStream audioInputStream; // @jve:decl-index=0: SamplingGraph samplingGraph; JButton playB, captB, pausB; JButton saveB; String errStr; double duration, seconds; File file; // @jve:decl-index=0: Vector<Line2D.Double> lines = new Vector<Line2D.Double>(); // @jve:decl-index=0: boolean isDrawingRequired; boolean isSaveRequired; JPanel innerPanel; String saveFileName = null; // @jve:decl-index=0: /** * Instantiates a new j sound capture. * * @param isDrawingRequired * the is drawing required * @param isSaveRequired * the is save required */ public JSoundCapture(boolean isDrawingRequired, boolean isSaveRequired) { wd = new WaveData(); this.isDrawingRequired = isDrawingRequired; this.isSaveRequired = isSaveRequired; setLayout(new BorderLayout()); setBorder(new EmptyBorder(1, 1, 1, 1)); innerPanel = new JPanel(); innerPanel.setLayout(new BoxLayout(innerPanel, BoxLayout.X_AXIS)); JPanel buttonsPanel = new JPanel(); buttonsPanel.setPreferredSize(new Dimension(200, 50)); buttonsPanel.setBorder(new EmptyBorder(5, 0, 1, 0)); playB = addButton("Play", buttonsPanel, false); captB = addButton("Record", buttonsPanel, true); pausB = addButton("Pause", buttonsPanel, false); saveB = addButton("Save ", buttonsPanel, false); innerPanel.add(buttonsPanel); // samplingPanel if (isDrawingRequired) { JPanel samplingPanel = new JPanel(new BorderLayout()); EmptyBorder eb = new EmptyBorder(2, 2, 2, 2); SoftBevelBorder sbb = new SoftBevelBorder(SoftBevelBorder.LOWERED); samplingPanel.setBorder(new CompoundBorder(eb, sbb)); samplingPanel.add(samplingGraph = new SamplingGraph()); innerPanel.add(samplingPanel); } // whole panel JPanel completePanel = new JPanel(); completePanel.setLayout(new BoxLayout(completePanel, BoxLayout.X_AXIS)); completePanel.add(innerPanel); add(completePanel); } // public void setAutoFileSaveMode(){ // // } public boolean isSoundDataAvailable() { if (audioBytes != null) return (audioBytes.length > 100); else return false; } public byte[] getAudioBytes() { return audioBytes; } public String getSaveFileName() { return saveFileName; } public void setSaveFileName(String saveFileName) { this.saveFileName = saveFileName; System.out.println("FileName Changed !!! " + saveFileName); } public float[] getAudioData() { if (audioData == null) { audioData = wd.extractFloatDataFromAudioInputStream(audioInputStream); } return audioData; } public void setAudioData(float[] audioData) { this.audioData = audioData; } private JButton addButton(String name, JPanel p, boolean state) { JButton b = new JButton(name); b.setPreferredSize(new Dimension(85, 24)); b.addActionListener(this); b.setEnabled(state); b.setFocusable(false); p.add(b); return b; } /* * (non-Javadoc) * * @see * java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent) */ public void actionPerformed(ActionEvent e) { System.out.println("actionPerformed *********"); Object obj = e.getSource(); if (isSaveRequired && obj.equals(saveB)) { getFileNameAndSaveFile(); } else if (obj.equals(playB)) { if (playB.getText().startsWith("Play")) { playCaptured(); } else { stopPlaying(); } } else if (obj.equals(captB)) { if (captB.getText().startsWith("Record")) { startRecord(); } else { stopRecording(); } } else if (obj.equals(pausB)) { if (pausB.getText().startsWith("Pause")) { pausePlaying(); } else { resumePlaying(); } } } public void playCaptured() { playback.start(); if (isDrawingRequired) samplingGraph.start(); captB.setEnabled(false); pausB.setEnabled(true); playB.setText("Stop"); } public void stopPlaying() { playback.stop(); if (isDrawingRequired) samplingGraph.stop(); captB.setEnabled(true); pausB.setEnabled(false); playB.setText("Play"); } public void startRecord() { file = null; capture.start(); if (isDrawingRequired) samplingGraph.start(); playB.setEnabled(false); pausB.setEnabled(true); saveB.setEnabled(false); captB.setText("Stop"); } public void stopRecording() { lines.removeAllElements(); capture.stop(); if (isDrawingRequired) samplingGraph.stop(); playB.setEnabled(true); pausB.setEnabled(false); saveB.setEnabled(true); captB.setText("Record"); } public void pausePlaying() { if (capture.thread != null) { capture.line.stop(); } else { if (playback.thread != null) { playback.line.stop(); } } pausB.setText("Resume"); } public void resumePlaying() { if (capture.thread != null) { capture.line.start(); } else { if (playback.thread != null) { playback.line.start(); } } pausB.setText("Pause"); } public void getFileNameAndSaveFile() { while (saveFileName == null) { saveFileName = JOptionPane.showInputDialog(null, "Enter WAV File Name", "Getting File Name"); } wd.saveToFile(saveFileName, AudioFileFormat.Type.WAVE, audioInputStream); } // public void saveFileAutoMode() { // wd.saveToFile(saveFileName, AudioFileFormat.Type.WAVE, audioInputStream); // saveFileName=null; // } /*