Discussion :

[hammasaidi]

bonjour,
comment créer le waveform d'un signal audio avec java
c'es une pb que je soufre d'elle depuis deux semaine
merci pour vos aides

[Uther]

Qu'est ce qui te poses, problème?
l'enregistrement, l'affichage?

[hammasaidi]

bonjour,
mon pb exactement c'es comment tracer la forme d'onde d'un son choisi
c'es à dire lire un son w au meme temps tracer sa forme d'onde
merci pour vos aides

[Uther]

Je répète ma question soit plus précis sur ce qui te pose poblème sinon il va être dur de t'aider.

Le son est il acquis sur la carte son ou lu depuis un fichier?
Dans le cas d'un ficher, quel format?
Est-ce l'aquisition/lecture des donnéeés qui te pose problème?
Est-ce le dessin de la waveform?

[hammasaidi]

bonjour,
le son depuis un fichier
extension .wav
le problem c'es de dessiner sa waveform
je peux vous donné mon code

Code :

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/**
 * @(#)Framework.java
 *
 *
 * @author 
 * @version 1.00 2010/1/3
 */
 import java.io.File;
import javax.swing.JLabel;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
import javax.swing.event.MouseInputAdapter;
import javax.swing.event.*;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.*;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.*;
import javax.swing.JSlider;
import javax.swing.JOptionPane;
import java.io.*;
import javax.sound.sampled.*;
import java.awt.*;
import java.awt.event.*;
import javax.sound.sampled.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.Vector;
 
 
 
/* Framework.java requires no other files. */
public class Framework extends WindowAdapter  {
    public int numWindows = 0;
    private Point lastLocation = null;
    private int maxX = 500;
    private int maxY = 500;
 
    public Framework() {
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        maxX = screenSize.width - 50;
        maxY = screenSize.height - 50;
        makeNewWindow();
 
    }
 
    public void makeNewWindow() {
 
 
    	JFrame frame = new MyFrame(this);
        numWindows++;
        System.out.println("Number of windows: " + numWindows);
 
 
 
 
 
 
        if (lastLocation != null) {
            //Move the window over and down 40 pixels.
            lastLocation.translate(40, 40);
            if ((lastLocation.x > maxX) || (lastLocation.y > maxY)) {
                lastLocation.setLocation(0, 0);
            }
            frame.setLocation(lastLocation);
        } else {
            lastLocation = frame.getLocation();
        }
 
         System.out.println("Frame location: " + lastLocation);
         frame.setVisible(true);
 
    }
 
    //This method must be evoked from the event-dispatching thread.
    public void quit(JFrame frame) {
        if (quitConfirmed(frame)) {
            System.out.println("Quitting.");
            System.exit(0);
        }
        System.out.println("Quit operation not confirmed; staying alive.");
    }
 
 
   public void windowClosed(WindowEvent e) {
        numWindows--;
        System.out.println("Number of windows = " + numWindows);
        if (numWindows <= 0) {
            System.out.println("All windows gone.  Bye bye!");
            System.exit(0);
        }
    }
    private boolean quitConfirmed(JFrame frame) {
        String s1 = "Quit";
        String s2 = "Cancel";
        Object[] options = {s1, s2};
        int n = JOptionPane.showOptionDialog(frame,
                "Vous voulez vraiment Quiter?",
                "Quit Confirmation",
                JOptionPane.YES_NO_OPTION,
                JOptionPane.QUESTION_MESSAGE,
                null,
                options,
                s1);
        if (n == JOptionPane.YES_OPTION) {
            return true;
        } else {
            return false;
        }
    }
 
 
 
 
 
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {
        Framework framework = new Framework();
 
    }
 
    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
 
    class MyFrame extends JFrame implements ActionListener {
        protected Dimension defaultSize = new Dimension(900, 600);
        protected Framework framework = null;
        private JLabel l1;
        private  JButton b_play;
        private JButton b_stop;
        private JButton b_ouvrir;
        private JCheckBox ch5;
        private File fichier = null;
        private AudioFormat format;
        private byte[] samples;
        private JFileChooser jfc = new JFileChooser();
 
        JFileChooser fc;
 
        public void sound()
    {
        try
        {
            AudioInputStream stream = AudioSystem.getAudioInputStream(this.fichier);
            this.format = stream.getFormat();
            this.getSamples(stream);
        }
            catch (Exception e){}
    }
    public void getSamples(AudioInputStream stream)
    {
        int length = (int)(stream.getFrameLength() * format.getFrameSize());
        this.samples = new byte[length];
        DataInputStream in = new DataInputStream(stream);
        try
        {
            in.readFully(this.samples);
        }
            catch (IOException e){}
    }
 
    public byte[] getSamples()
    {
        return this.samples;
    }
    public void play(InputStream source)
    {
        // 100 ms buffer for real time change to the sound stream
        int bufferSize = this.format.getFrameSize() * Math.round(this.format.getSampleRate() / 10);
        byte[] buffer = new byte[bufferSize];
        SourceDataLine line;
        try
        {
            DataLine.Info info = new DataLine.Info(SourceDataLine.class, this.format);
            line = (SourceDataLine)AudioSystem.getLine(info);
            line.open(this.format, bufferSize);
            line.start();
            int numBytesRead = 0;
            while (numBytesRead != -1)
            {
                numBytesRead = source.read(buffer, 0, buffer.length);
                if (numBytesRead != -1)
                    line.write(buffer, 0, numBytesRead);
            }
            line.drain();
            line.close();
        }
            catch (Exception e){}
    }
    public void ouvrir()
    {
        this.jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
        this.jfc.addChoosableFileFilter(new FiltreExtension(".wav", "Fichier wav"));
        this.jfc.addChoosableFileFilter(new FiltreExtension(".wav", "Fichier wav"));
        int returnVal = this.jfc.showOpenDialog(this);
        if (returnVal == JFileChooser.APPROVE_OPTION)
        {
            this.fichier = this.jfc.getSelectedFile();
        }
    }
     private class Lecture
            extends Thread
    {
        public void run()
        {
            play(new ByteArrayInputStream(getSamples()));
        }
    }
        public MyFrame(Framework controller) {
            super("Traitement Numérique de signal ");
            framework = controller;
            setDefaultCloseOperation(DISPOSE_ON_CLOSE);
            addWindowListener(framework);
            setLocation(50,50);
            setLayout(new BorderLayout());
 
 
              JPanel p2 =new JPanel();
 
 
               b_ouvrir = new JButton("Ouvrir");
              p2.add(b_ouvrir);
 
             this.b_ouvrir.addActionListener(this);
              JLabel l1=new JLabel("***son***");
              p2.add(l1);
               b_play = new JButton("Play");
              p2.add(b_play);
              this.b_play.addActionListener(this);
               b_stop = new JButton("Stop");
              p2.add(b_stop);
              this.b_stop.addActionListener(this);
 
 
 
 
 
                	JLabel l2=new JLabel("***visualiser signal***");
                	p2.add(l2);
              JButton b5 = new JButton("play");
              p2.add(b5);
               JButton b7 = new JButton("stop");
              p2.add(b7);
               JButton b4 = new JButton("Spectr");
              p2.add(b4);
 
 
              JButton b6 = new JButton("EXIT");
              p2.add(b6);
              b6.addActionListener(new ActionListener() {//exit
                public void actionPerformed(ActionEvent e) {
                     new VoicePromptPlayer();
 
 
 
                	}});
              add("North",p2);
 
 
              JPanel p1=new JPanel();
              p1.setLayout(new BorderLayout());           
              JPanel p3=new JPanel();
 
 
              JCheckBox ch5= new JCheckBox("son");
              p3.add(ch5);
 
 
              JButton b10 = new JButton("fiche signal");
              b10.setBounds(0,10,10,10);
              p3.add(b10);
 
 
              JButton b11 = new JButton("view");
              b11.setBounds(0,110,10,10);
 
              p3.add(b11);
 
 
 
 
              p1.setBounds(0,100,100,100);
              p1.add("North",p3);
 
 
              add("West",p1);
 
 
 
              Canvas c = new EssaiCanvas(); 
 
 
              c.setBackground(Color.black);
 
 
              add("Center",c);
 
           /*  JPanel p4=new JPanel();
             JLabel lz= new JLabel("zoum en amplitude");
             p4.add(lz);
             
             JSlider s3=new JSlider();
              s3.setBounds(0,10,10,10);
              
              p4.add(s3);
              
           
             
            add("South",p4);*/
 
 
              JMenu menu = new JMenu("File");
              menu.setMnemonic(KeyEvent.VK_W);
              JMenuItem item = null;
            //close
            item = new JMenuItem("Close");
            item.setMnemonic(KeyEvent.VK_C);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Close window");
                    MyFrame.this.setVisible(false);
                    MyFrame.this.dispose();
                }
            });
            menu.add(item);
 
 
            //new
            item = new JMenuItem("New");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("New window");
                    framework.makeNewWindow();
                }
            });
            menu.add(item);
            //open
            item = new JMenuItem("Open");
            item.setMnemonic(KeyEvent.VK_N);
 
            menu.add(item);
            //Enregistrer..
             item = new JMenuItem("Save..");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                   JFileChooser fc=new JFileChooser();
                    fc.showSaveDialog(MyFrame.this);
                }
            });
            menu.add(item);
            //Enregistrer sous
            item = new JMenuItem("Save as...");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                   JFileChooser fc=new JFileChooser();
                    fc.showSaveDialog(MyFrame.this);
 
                }
            });
            menu.add(item);
            //Import un siganl wav ou mp3
            item = new JMenuItem("Importer un signal..");
            item.setMnemonic(KeyEvent.VK_N);
 
            menu.add(item);
 
 
 
            //quit
            item = new JMenuItem("Quit");
            item.setMnemonic(KeyEvent.VK_Q);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Quit request");
                    framework.quit(MyFrame.this);
                }
            });
            menu.add(item);
 
            JMenuBar menuBar = new JMenuBar();
            menuBar.add(menu);
            setJMenuBar(menuBar);
 
            setSize(defaultSize);
            JMenu menu1 = new JMenu("Edit");
            menu.setMnemonic(KeyEvent.VK_W);
 
           // selection
           item = new JMenuItem("Select....");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Edit");
 
 
                }
            });
            menu1.add(item);
            // Cut
           item = new JMenuItem("Cut");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Copier");
 
                }
            });
            menu1.add(item);
            // Copier
           item = new JMenuItem("Copie");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Copier");
 
                }
            });
            menu1.add(item);
 
            //coller
 
           item = new JMenuItem("Paste");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Coller");
 
                }
            });
            menu1.add(item);
 
 
 
            menuBar.add(menu1);
            setJMenuBar(menuBar);
            JMenu menu2 = new JMenu("Aide");
            menu.setMnemonic(KeyEvent.VK_W);
 
           // Aide
           item = new JMenuItem("Aide");
            item.setMnemonic(KeyEvent.VK_N);
 
            menu2.add(item);
 
 
            menuBar.add(menu2);
            setJMenuBar(menuBar);
        }
        public void actionPerformed(ActionEvent e){
        	Lecture t = new Lecture();
 
        	if(e.getSource().equals(this.b_ouvrir))
        {
            this.ouvrir();
        }
        	 if(e.getSource().equals(this.b_play))
        {
            if(this.fichier == null)
            {
                this.ouvrir();
                this.sound();
 
                t.start();
            }
            else
            {
 
                this.sound();
                t.start();
            }
        }
       if(e.getSource().equals(this.b_stop)&&this.fichier!=null)
 
        { 
        	this.sound();
 
        	t.stop();	
 
 
 
          }
 
    }
 
 
    }
    class EssaiCanvas extends Canvas { 
 
 
 
  public void paint (Graphics g){  
 
  int x1;
  int y1;
  int x2;
  int y2;
 
 
   g.setColor( Color.white );
   g.drawLine(700,160,00,160);
   g.drawString("0",22,160); 
   g.setColor( Color.white );
   g.drawLine(700,350,00,350);
 
   g.setColor( Color.white );
   g.drawString("0",22,345);
   g.drawLine(20,00,20,700);
  g.drawString("temps",620,180);
  g.drawString("temps",620,380);
  g.drawString("Fr",25,20); 
 g.drawString("Signal",305,20);
 g.drawString("Spectrogramme",305,450);
 
  }  
 
 
 
 
} 
 
}
 
    class FiltreExtension
        extends javax.swing.filechooser.FileFilter
{
    private String extension;
    private String description;
    public FiltreExtension(String extension, String description)
    {
 
        if (extension.indexOf('.') == -1)
            extension = "." + extension;
 
        this.extension = extension;
        this.description = description;
    }
    public boolean accept(File fichier)
    {
 
        if (fichier.getName().endsWith(extension))
            return true;
        // les répertoires aussi doivent être affichés dans la fenêtre du JFileChooser
        else if (fichier.isDirectory())
            return true;
        return false;
    }
    public String getDescription()
    {
        // la description du fichier, que lâ€Ton associe à  son extension, on a un
        // affichage du type: "Fichier JPEG (*.jpg)"
        return this.description + "(*" + extension + ")";
    }
}
 
class VoicePromptPlayer extends JFrame implements ActionListener
{
	Player player = new Player();
 
	AudioInputStream audioInputStream;
 
	JButton buttonPlayPause = new JButton();
    JButton buttonStop = new JButton();
    JButton buttonClose = new JButton();
    JLabel lblPosition = new JLabel();
    JLabel lblLength = new JLabel();
    JLabel lblPositionSeconds = new JLabel();
    JLabel lblLengthSeconds = new JLabel();
    JLabel lblSecond1 = new JLabel();
    JLabel lblSecond2 = new JLabel();
 
 
    JPanel topPanel = new JPanel(new BorderLayout());
    JPanel positionPanel = new JPanel();
    JPanel lengthPanel = new JPanel();
    JPanel bottomPanel = new JPanel(new BorderLayout());
    JPanel controlButtonPanel = new JPanel(new FlowLayout(FlowLayout.LEFT, 5, 5));
    JPanel buttonPanel = new JPanel(new FlowLayout(FlowLayout.RIGHT, 5, 5));
 
	int lengthInMilliseconds, seconds;
	Vector lines = new Vector();
 
 
	public VoicePromptPlayer()
    {
        super("Player");
 
		this.getContentPane().setLayout(new BorderLayout());
 
        setupTopPanel();
 
        buttonPlayPause.setText("Play");
        buttonPlayPause.setActionCommand("Play");
        buttonPlayPause.addActionListener(this);
        buttonPlayPause.setEnabled(false);
        buttonPlayPause.setFocusPainted(false);
        buttonStop.setText("Stop");
        buttonStop.setActionCommand("Stop");
        buttonStop.addActionListener(this);
        buttonStop.setEnabled(false);
        buttonStop.setFocusPainted(false);
        buttonClose.setText("Close");
        buttonClose.addActionListener(this);
 
        buttonPanel.add(buttonClose);
        controlButtonPanel.add(buttonPlayPause);
        controlButtonPanel.add(buttonStop);
        controlButtonPanel.add(buttonPanel);
        bottomPanel.add(controlButtonPanel, BorderLayout.WEST);
        bottomPanel.add(buttonPanel, BorderLayout.EAST);
 
        this.getContentPane().add(topPanel, BorderLayout.NORTH);
        this.getContentPane().add(bottomPanel, BorderLayout.SOUTH);
 
        createAudioInputStream();
        lblPosition.setText("Position: ");
        lblPositionSeconds.setText(formatMilliseconds(0));
        lblLength.setText("Length: ");
        lblLengthSeconds.setText(formatMilliseconds((long)lengthInMilliseconds));
        lblSecond1.setText(" sec.");
        lblSecond2.setText(" sec.");
 
        if (audioInputStream != null)
        {
            buttonPlayPause.setEnabled(true);
        }
        this.setResizable(false);
        this.addWindowListener(new MyWindowAdapter());
        this.pack();
        this.setLocationRelativeTo(null);
	}
 
    private void setupTopPanel()
    {
        GridBagLayout gbLayout = new GridBagLayout();
        GridBagConstraints gbc = new GridBagConstraints();
 
        positionPanel.setLayout(gbLayout);
 
        gbc.weightx      = 0.0;
        gbc.weighty      = 0.0;
        gbc.gridheight   = 1;
        gbc.gridwidth    = 1;
        gbc.insets       = new Insets(4, 4, 0, 0);
        gbc.ipadx        = 0;
        gbc.ipady        = 0;
        gbc.gridx        = 0;
        gbc.gridy        = 0;
        gbc.fill         = GridBagConstraints.NONE;
        gbc.anchor       = GridBagConstraints.WEST;
 
        gbLayout.setConstraints(lblPosition, gbc);
        positionPanel.add(lblPosition);
 
		gbc.insets       = new Insets(4, 0, 0, 0);
        gbc.gridx        = 1;
        positionPanel.add(lblPositionSeconds, gbc);
 
        gbc.weightx      = 1.0;
        gbc.gridx        = 2;
        positionPanel.add(lblSecond1, gbc);
        topPanel.add(positionPanel, BorderLayout.WEST);
 
        gbLayout = new GridBagLayout();
        lengthPanel.setLayout(gbLayout);
 
        gbc.gridx        = 0;
        gbc.anchor       = GridBagConstraints.EAST;
        lengthPanel.add(lblLength, gbc);
        gbc.weightx      = 0.0;
        gbc.gridx        = 1;
        lengthPanel.add(lblLengthSeconds, gbc);
		gbc.insets       = new Insets(4, 0, 0, 4);
        gbc.gridx        = 2;
        lengthPanel.add(lblSecond2, gbc);
        topPanel.add(lengthPanel, BorderLayout.EAST);
    }
 
 
 
    public static void main(String args[])
    {
        VoicePromptPlayer player = new VoicePromptPlayer();
        player.setVisible(true);
    }
 
 
	public String toString()
	{
		return ("Player");
	}
 
 
	public void actionPerformed(ActionEvent e)
    {
		Object obj = e.getSource();
		if (obj.equals(buttonPlayPause))
        {
			if (buttonPlayPause.getActionCommand().equals("Play"))
            {
                // Need to start play or resume
                if (player.isPaused())
    				player.resume();
                else
                    player.play();
 
                // Either way modify the button
                setPauseButton();
                buttonStop.setEnabled(true);
			}
            else
            {
				player.pause();
                setPlayButton();
			}
            pack();
		}
        else if (obj.equals(buttonStop))
        {
            player.stop();
            buttonStop.setEnabled(false);
            if (buttonPlayPause.getActionCommand().equals("Pause"))
                setPlayButton();
		}
        else if (obj.equals(buttonClose))
        {
            player.stop();
            this.dispose();
		}
    }
 
 
    private String formatMilliseconds(long milliseconds)
    {
        DecimalFormat format = new DecimalFormat("0.00");
        double seconds = milliseconds / 1000.0;
        String formattedOutput = format.format(seconds);
        return formattedOutput;
    }
 
    private void setPlayButton()
    {
        buttonPlayPause.setText("Play");
        buttonPlayPause.setActionCommand("Play");
    }
 
    private void setPauseButton()
    {
        buttonPlayPause.setText("Pause");
        buttonPlayPause.setActionCommand("Pause");
    }
 
	public void createAudioInputStream()
    {
        JFileChooser chooser = new JFileChooser();
        chooser.setFileSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        chooser.showOpenDialog(this);
 
        File file = chooser.getSelectedFile();
 
        try {
            audioInputStream = AudioSystem.getAudioInputStream(file);
        } catch (Exception e) {}
 
        if (audioInputStream != null)
        {
            player.initialize();
            lengthInMilliseconds = (int)((audioInputStream.getFrameLength() * 1000) / audioInputStream.getFormat().getFrameRate());
        }
 
	}
 
 
	/**
         * Voice prompt player.
         */
	public class Player implements ActionListener
    {
        Timer timer;
        Clip clip;
        boolean paused = false;
 
        public Player()
        {
            timer = new Timer(100, this);
            timer.setRepeats(true);
        }
 
        public void actionPerformed(ActionEvent e)
        {
            long usec = clip.getMicrosecondPosition();
 
            System.out.println("Clip position: " + usec + " usec, isRunning: " + clip.isRunning());
            System.out.println("Timer time: " + System.currentTimeMillis() + " msec");
            if ( (clip.isRunning() == false))
            {
               // At end of playback
                if (buttonStop.isEnabled())
                    buttonStop.doClick();
            }
 
            lblPositionSeconds.setText(formatMilliseconds((long) usec/1000));
            lblPosition.repaint();
        }
 
        public boolean isPaused()
        {
            return paused;
        }
 
		public void play()
        {
            if(clip == null)
            {
              JOptionPane.showMessageDialog(null, "There is no loaded audio to playback.",
                                            "Play Problem",JOptionPane.WARNING_MESSAGE);
              return;
            }
            System.out.println("\nClip starting");
            System.out.println("Clip position: " + clip.getMicrosecondPosition() + " usec, isRunning: " + clip.isRunning());
            clip.start();
            System.out.println("Clip started");
            System.out.println("Clip position: " + clip.getMicrosecondPosition() + " usec, isRunning: " + clip.isRunning());
            System.out.println("Start time: " + System.currentTimeMillis() + " msec");
 
            timer.start();
		}
 
        public void pause()
        {
            if (timer != null)
                timer.stop();
            if (clip != null)
                clip.stop();
            paused = true;
        }
 
        public void resume()
        {
            if (clip != null)
                clip.start();
            if (timer != null)
               timer.restart();
            paused = false;
        }
 
		public void stop()
        {
            if (timer != null)
                timer.stop();
 
            if (clip != null)
            {
                clip.stop();
                clip.setFramePosition(0);
            }
            paused = false;
		}
 
		private void shutDown(String message)
        {
			if (message != null)
            {
				System.err.println(message);
			}
                setPlayButton();
                buttonStop.setEnabled(false);
		}
 
        public void setPosition(long microseconds)
        {
            clip.setMicrosecondPosition(microseconds);
        }
 
		public void initialize()
        {
			// make sure we have something to play
			if (audioInputStream == null) {
				shutDown("There is no loaded audio to playback.");
				return;
			}
 
			// define the required attributes for our line,
			// and make sure a compatible line is supported.
 
            AudioFormat format = audioInputStream.getFormat();
            DataLine.Info clipInfo = new DataLine.Info(Clip.class, format);
			if (!AudioSystem.isLineSupported(clipInfo))
            {
				shutDown("A line matching desired info not supported" + ": " + clipInfo);
				return;
			}
 
			// get and open the source data line for playback.
 
			try
            {
                clip = (Clip)AudioSystem.getLine(clipInfo);   // Create the clip
                clip.open(audioInputStream);
                clip.setFramePosition(0);
			}
            catch (IOException e)
            {
                shutDown("Unable to open clip" + ": " + e);
                return;
            }
            catch (LineUnavailableException ex)
            {
				shutDown("Unable to open line" + ": " + ex);
				return;
			}
 
 
		}
	} // End class Player
 
 
    class MyWindowAdapter extends WindowAdapter
    {
        public void windowClosing(WindowEvent e)
        {
            player.stop();
        }
    }
}

[hammasaidi]

bonjour,
à ce point mon travail est trés compliqué ou quoi?
aucune réponse?????????,

[sinok]

C'est tout simplement car tu ne donne pas l'impression d'essayer quoi que ce soit et que tu attends qu'on fasse le travail à ta place. Ce qui n'arrivera pas. D'autant plus que la recherche google n'a pas l'air d'être ton fort non plus.
http://codeidol.com/java/swing/Audio...eform-Display/

[hammasaidi]

bonjour,
j'ai presque tous les astuces mais j'arrive pas de représenté la forme d'onde de signal
mon code ne compile pas
merci pour vos aides

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/**
 * @(#)Framework.java
 *
 *
 * @author 
 * @version 1.00 2010/1/3
 */
 import java.io.File;
import javax.swing.JLabel;
import javax.swing.JFileChooser;
import javax.swing.filechooser.FileFilter;
import javax.swing.event.MouseInputAdapter;
import javax.swing.event.*;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JMenuBar;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.*;
import javax.swing.SwingUtilities;
import javax.swing.filechooser.*;
import javax.swing.JSlider;
import javax.swing.JOptionPane;
import java.io.*;
import javax.sound.sampled.*;
import java.awt.*;
import java.awt.event.*;
import javax.sound.sampled.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.IOException;
import java.text.DecimalFormat;
import java.util.Vector;
import java.awt.*;
import java.awt.geom.AffineTransform;
import javax.swing.*;
 import java.awt.*;
import java.awt.event.*;
import java.awt.geom.AffineTransform;
import java.awt.geom.NoninvertibleTransformException;
import java.awt.geom.Point2D;
 
 
/* Framework.java requires no other files. */
public class Framework extends WindowAdapter  {
    public int numWindows = 0;
    private Point lastLocation = null;
    private int maxX = 500;
    private int maxY = 500;
 
    public Framework() {
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        maxX = screenSize.width - 50;
        maxY = screenSize.height - 50;
        makeNewWindow();
 
    }
 
    public void makeNewWindow() {
 
 
    	JFrame frame = new MyFrame(this);
        numWindows++;
        System.out.println("Number of windows: " + numWindows);
 
 
 
 
 
 
        if (lastLocation != null) {
            //Move the window over and down 40 pixels.
            lastLocation.translate(40, 40);
            if ((lastLocation.x > maxX) || (lastLocation.y > maxY)) {
                lastLocation.setLocation(0, 0);
            }
            frame.setLocation(lastLocation);
        } else {
            lastLocation = frame.getLocation();
        }
 
         System.out.println("Frame location: " + lastLocation);
         frame.setVisible(true);
 
    }
 
    //This method must be evoked from the event-dispatching thread.
    public void quit(JFrame frame) {
        if (quitConfirmed(frame)) {
            System.out.println("Quitting.");
            System.exit(0);
        }
        System.out.println("Quit operation not confirmed; staying alive.");
    }
 
 
   public void windowClosed(WindowEvent e) {
        numWindows--;
        System.out.println("Number of windows = " + numWindows);
        if (numWindows <= 0) {
            System.out.println("All windows gone.  Bye bye!");
            System.exit(0);
        }
    }
    private boolean quitConfirmed(JFrame frame) {
        String s1 = "Quit";
        String s2 = "Cancel";
        Object[] options = {s1, s2};
        int n = JOptionPane.showOptionDialog(frame,
                "Vous voulez vraiment Quiter?",
                "Quit Confirmation",
                JOptionPane.YES_NO_OPTION,
                JOptionPane.QUESTION_MESSAGE,
                null,
                options,
                s1);
        if (n == JOptionPane.YES_OPTION) {
            return true;
        } else {
            return false;
        }
    }
 
 
 
 
 
    /**
     * Create the GUI and show it.  For thread safety,
     * this method should be invoked from the
     * event-dispatching thread.
     */
    private static void createAndShowGUI() {
        Framework framework = new Framework();
 
    }
 
    public static void main(String[] args) {
        //Schedule a job for the event-dispatching thread:
        //creating and showing this application's GUI.
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();
            }
        });
    }
 
    class MyFrame extends JFrame implements ActionListener {
        protected Dimension defaultSize = new Dimension(900, 600);
        protected Framework framework = null;
        private JLabel l1;
        private  JButton b_play;
        private JButton b_stop;
        private JButton b_ouvrir;
        private JCheckBox ch5;
        private File fichier = null;
        private AudioFormat format;
        private byte[] samples;
        private JFileChooser jfc = new JFileChooser();
 
        JFileChooser fc;
 
        public void sound()
    {
        try
        {
            AudioInputStream stream = AudioSystem.getAudioInputStream(this.fichier);
            this.format = stream.getFormat();
            this.getSamples(stream);
        }
            catch (Exception e){}
    }
    public void getSamples(AudioInputStream stream)
    {
        int length = (int)(stream.getFrameLength() * format.getFrameSize());
        this.samples = new byte[length];
        DataInputStream in = new DataInputStream(stream);
        try
        {
            in.readFully(this.samples);
        }
            catch (IOException e){}
    }
 
    public byte[] getSamples()
    {
        return this.samples;
    }
    public void play(InputStream source)
    {
        // 100 ms buffer for real time change to the sound stream
        int bufferSize = this.format.getFrameSize() * Math.round(this.format.getSampleRate() / 10);
        byte[] buffer = new byte[bufferSize];
        SourceDataLine line;
        try
        {
            DataLine.Info info = new DataLine.Info(SourceDataLine.class, this.format);
            line = (SourceDataLine)AudioSystem.getLine(info);
            line.open(this.format, bufferSize);
            line.start();
            int numBytesRead = 0;
           while (numBytesRead != -1 && ! Thread.currentThread().interrupted()) 
            {
                numBytesRead = source.read(buffer, 0, buffer.length);
                if (numBytesRead != -1)
                    line.write(buffer, 0, numBytesRead);
            }
            line.drain();
            line.close();
        }
            catch (Exception e){}
    }
    public void ouvrir()
    {
        this.jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
        this.jfc.addChoosableFileFilter(new FiltreExtension(".wav", "Fichier wav"));
        this.jfc.addChoosableFileFilter(new FiltreExtension(".wav", "Fichier wav"));
        int returnVal = this.jfc.showOpenDialog(this);
        if (returnVal == JFileChooser.APPROVE_OPTION)
        {
            this.fichier = this.jfc.getSelectedFile();
        }
    }
     private class Lecture
            extends Thread
    {
        public void run()
        {
            play(new ByteArrayInputStream(getSamples()));
        }
    }
 
    protected double biggestSample;
    private AudioInputStream audioInputStream;
  private int[][] samplesContainer;
  public void AudioInfo(AudioInputStream stream) {
        this.audioInputStream = stream;
       sound();
    }
    public double getFileLengthSeconds(){
    	return audioInputStream.getFrameLength() / audioInputStream.getFormat().getFrameRate();
    }
     public int getNumberOfChannels(){
        int numBytesPerSample = audioInputStream.getFormat().getSampleSizeInBits() / 8;
        return audioInputStream.getFormat().getFrameSize() / numBytesPerSample;
    }
    public double getXScaleFactor(int panelWidth){
        return (panelWidth / ((double) samplesContainer[0].length));
    }
 
    public double getYScaleFactor(int panelHeight){
        return (panelHeight / (biggestSample * 2 * 1.2));
    }
 
    public int[] getAudio(int channel){
        return samplesContainer[channel];
    }
 
    protected int getIncrement(double xScale) {
        try {
            int increment = (int) (samplesContainer[0].length / (samplesContainer[0].length * xScale));
            return increment;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return -1;
    }
   protected void drawWaveform(Graphics g, int[] samples) {
        if (samples == null) {
            return;
        }
 
        int oldX = 0;
        int oldY = (int) (getHeight() / 2);
        int xIndex = 0;
 
        int increment = audioInputStream.getIncrement(audioInputStream.getXScaleFactor(getHeight()));
        g.setColor(Color.red);
 
        int t = 0;
 
        for (t = 0; t < increment; t += increment) {
            g.drawLine(oldX, oldY, xIndex, oldY);
            xIndex++;
            oldX = xIndex;
        }
 
        for (; t < samples.length; t += increment) {
            double scaleFactor = audioInputStream.getYScaleFactor(getHeight());
            double scaledSample = samples[t] * scaleFactor;
            int y = (int) ((getHeight() / 2) - (scaledSample));
            g.drawLine(oldX, oldY, xIndex, y);
 
            xIndex++;
            oldX = xIndex;
            oldY = y;
        }
    }
 
 
        public MyFrame(Framework controller) {
            super("Traitement Numérique de signal ");
            framework = controller;
            setDefaultCloseOperation(DISPOSE_ON_CLOSE);
            addWindowListener(framework);
            setLocation(50,50);
            setLayout(new BorderLayout());
 
 
              JPanel p2 =new JPanel();
 
 
               b_ouvrir = new JButton("Ouvrir");
              p2.add(b_ouvrir);
 
             this.b_ouvrir.addActionListener(this);
              JLabel l1=new JLabel("***son***");
              p2.add(l1);
               b_play = new JButton("Play");
              p2.add(b_play);
              this.b_play.addActionListener(this);
               b_stop = new JButton("Stop");
              p2.add(b_stop);
              this.b_stop.addActionListener(this);
 
 
 
 
 
                	JLabel l2=new JLabel("***visualiser signal***");
                	p2.add(l2);
              JButton b5 = new JButton("play");
              p2.add(b5);
               JButton b7 = new JButton("stop");
              p2.add(b7);
               JButton b4 = new JButton("Spectr");
              p2.add(b4);
 
 
              JButton b6 = new JButton("EXIT");
              p2.add(b6);
              b6.addActionListener(new ActionListener() {//exit
                public void actionPerformed(ActionEvent e) {
                    System.exit(0);
 
 
 
                	}});
              add("North",p2);
 
 
              JPanel p1=new JPanel();
              p1.setLayout(new BorderLayout());           
              JPanel p3=new JPanel();
 
 
              JCheckBox ch5= new JCheckBox("son");
              p3.add(ch5);
 
 
              JButton b10 = new JButton("fiche signal");
              b10.setBounds(0,10,10,10);
              p3.add(b10);
 
 
              JButton b11 = new JButton("view");
              b11.setBounds(0,110,10,10);
 
              p3.add(b11);
 
 
 
 
              p1.setBounds(0,100,100,100);
              p1.add("North",p3);
 
 
              add("West",p1);
 
 
 
              Canvas c = new EssaiCanvas(); 
              c.setBackground(Color.black);
 
 
              add("Center",c);
 
           /*  JPanel p4=new JPanel();
             JLabel lz= new JLabel("zoum en amplitude");
             p4.add(lz);
             
             JSlider s3=new JSlider();
              s3.setBounds(0,10,10,10);
              
              p4.add(s3);
              
           
             
            add("South",p4);*/
 
 
              JMenu menu = new JMenu("File");
              menu.setMnemonic(KeyEvent.VK_W);
              JMenuItem item = null;
            //close
            item = new JMenuItem("Close");
            item.setMnemonic(KeyEvent.VK_C);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Close window");
                    MyFrame.this.setVisible(false);
                    MyFrame.this.dispose();
                }
            });
            menu.add(item);
 
 
            //new
            item = new JMenuItem("New");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("New window");
                    framework.makeNewWindow();
                }
            });
            menu.add(item);
            //open
            item = new JMenuItem("Open");
            item.setMnemonic(KeyEvent.VK_N);
 
            menu.add(item);
            //Enregistrer..
             item = new JMenuItem("Save..");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                   JFileChooser fc=new JFileChooser();
                    fc.showSaveDialog(MyFrame.this);
                }
            });
            menu.add(item);
            //Enregistrer sous
            item = new JMenuItem("Save as...");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                   JFileChooser fc=new JFileChooser();
                    fc.showSaveDialog(MyFrame.this);
 
                }
            });
            menu.add(item);
            //Import un siganl wav ou mp3
            item = new JMenuItem("Importer un signal..");
            item.setMnemonic(KeyEvent.VK_N);
 
            menu.add(item);
 
 
 
            //quit
            item = new JMenuItem("Quit");
            item.setMnemonic(KeyEvent.VK_Q);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Quit request");
                    framework.quit(MyFrame.this);
                }
            });
            menu.add(item);
 
            JMenuBar menuBar = new JMenuBar();
            menuBar.add(menu);
            setJMenuBar(menuBar);
 
            setSize(defaultSize);
            JMenu menu1 = new JMenu("Edit");
            menu.setMnemonic(KeyEvent.VK_W);
 
           // selection
           item = new JMenuItem("Select....");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Edit");
 
 
                }
            });
            menu1.add(item);
            // Cut
           item = new JMenuItem("Cut");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Copier");
 
                }
            });
            menu1.add(item);
            // Copier
           item = new JMenuItem("Copie");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Copier");
 
                }
            });
            menu1.add(item);
 
            //coller
 
           item = new JMenuItem("Paste");
            item.setMnemonic(KeyEvent.VK_N);
            item.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    System.out.println("Coller");
 
                }
            });
            menu1.add(item);
 
 
 
            menuBar.add(menu1);
            setJMenuBar(menuBar);
            JMenu menu2 = new JMenu("Aide");
            menu.setMnemonic(KeyEvent.VK_W);
 
           // Aide
           item = new JMenuItem("Aide");
            item.setMnemonic(KeyEvent.VK_N);
 
            menu2.add(item);
 
 
            menuBar.add(menu2);
            setJMenuBar(menuBar);
        }
        public void actionPerformed(ActionEvent e){
        	Lecture t = new Lecture();
 
        	if(e.getSource().equals(this.b_ouvrir))
        {
            this.ouvrir();
        }
        	 if(e.getSource().equals(this.b_play))
        {
            if(this.fichier == null)
            {
                this.ouvrir();
                this.sound();
 
                t.start();
            }
            else
            {
 
                this.sound();
                t.start();
            }
        }
       if (e.getSource().equals(this.b_stop)) {
                this.sound();
                //t.stop();
                t.interrupt();
                t = null;
            }
 
    }
 
 
    }
    class EssaiCanvas extends Canvas { 
 
      private boolean init = true;
 
 
 
    private ZoomAndPanListener zoomAndPanListener;
 
   public EssaiCanvas() {
        this.zoomAndPanListener = new ZoomAndPanListener(this);
        this.addMouseListener(zoomAndPanListener);
       // this.addMouseMotionListener(zoomAndPanListener);
        this.addMouseWheelListener(zoomAndPanListener);
    }
 
   public void paint(Graphics g1) {
        Graphics2D g = (Graphics2D) g1;
        g.setBackground(Color.black);
 
      if (init) {
            // Initialize the viewport by moving the origin to the center of the window,
            // and inverting the y-axis to point upwards.
            init = false;
 
           zoomAndPanListener.setCoordTransform(g.getTransform());
        } else {
            // Restore the viewport after it was updated by the ZoomAndPanListener
            g.setTransform(zoomAndPanListener.getCoordTransform());
        }
 
 
         g.setColor(Color.lightGray);
         int lineHeight = getHeight() / 2;
         g.drawLine(0, lineHeight, (int)getWidth(), lineHeight);
 
   }
 
 
 
 
} 
 
}
 
    class FiltreExtension
        extends javax.swing.filechooser.FileFilter
{
    private String extension;
    private String description;
    public FiltreExtension(String extension, String description)
    {
 
        if (extension.indexOf('.') == -1)
            extension = "." + extension;
 
        this.extension = extension;
        this.description = description;
    }
    public boolean accept(File fichier)
    {
 
        if (fichier.getName().endsWith(extension))
            return true;
        // les répertoires aussi doivent être affichés dans la fenêtre du JFileChooser
        else if (fichier.isDirectory())
            return true;
        return false;
    }
    public String getDescription()
    {
        // la description du fichier, que lâ€Ton associe à  son extension, on a un
        // affichage du type: "Fichier JPEG (*.jpg)"
        return this.description + "(*" + extension + ")";
    }
}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
class ZoomAndPanListener implements MouseListener, MouseMotionListener, MouseWheelListener {
    public static final int DEFAULT_MIN_ZOOM_LEVEL = -20;
    public static final int DEFAULT_MAX_ZOOM_LEVEL = 10;
    public static final double DEFAULT_ZOOM_MULTIPLICATION_FACTOR = 1.2;
 
    private Component targetComponent;
 
    private int zoomLevel = 0;
    private int minZoomLevel = DEFAULT_MIN_ZOOM_LEVEL;
    private int maxZoomLevel = DEFAULT_MAX_ZOOM_LEVEL;
    private double zoomMultiplicationFactor = DEFAULT_ZOOM_MULTIPLICATION_FACTOR;
 
    private Point dragStartScreen;
    private Point dragEndScreen;
    private AffineTransform coordTransform = new AffineTransform();
 
    public ZoomAndPanListener(Component targetComponent) {
        this.targetComponent = targetComponent;
    }
 
    public ZoomAndPanListener(Component targetComponent, int minZoomLevel, int maxZoomLevel, double zoomMultiplicationFactor) {
        this.targetComponent = targetComponent;
        this.minZoomLevel = minZoomLevel;
        this.maxZoomLevel = maxZoomLevel;
        this.zoomMultiplicationFactor = zoomMultiplicationFactor;
    }
 
 
    public void mouseClicked(MouseEvent e) {
    }
 
    public void mousePressed(MouseEvent e) {
        dragStartScreen = e.getPoint();
        dragEndScreen = null;
    }
 
    public void mouseReleased(MouseEvent e) {
//        moveCamera(e);
    }
 
    public void mouseEntered(MouseEvent e) {
    }
 
    public void mouseExited(MouseEvent e) {
    }
 
    public void mouseMoved(MouseEvent e) {
    }
 
    public void mouseDragged(MouseEvent e) {
        moveCamera(e);
    }
 
    public void mouseWheelMoved(MouseWheelEvent e) {
//        System.out.println("============= Zoom camera ============");
        zoomCamera(e);
    }
 
    private void moveCamera(MouseEvent e) {
//        System.out.println("============= Move camera ============");
        try {
            dragEndScreen = e.getPoint();
            Point2D.Float dragStart = transformPoint(dragStartScreen);
            Point2D.Float dragEnd = transformPoint(dragEndScreen);
            double dx = dragEnd.getX() - dragStart.getX();
            double dy = dragEnd.getY() - dragStart.getY();
            coordTransform.translate(dx, dy);
            dragStartScreen = dragEndScreen;
            dragEndScreen = null;
            targetComponent.repaint();
        } catch (NoninvertibleTransformException ex) {
            ex.printStackTrace();
        }
    }
 
    private void zoomCamera(MouseWheelEvent e) {
        try {
            int wheelRotation = e.getWheelRotation();
            Point p = e.getPoint();
            if (wheelRotation > 0) {
                if (zoomLevel < maxZoomLevel) {
                    zoomLevel++;
                    Point2D p1 = transformPoint(p);
                    coordTransform.scale(1 / zoomMultiplicationFactor, 1 / zoomMultiplicationFactor);
                    Point2D p2 = transformPoint(p);
                    coordTransform.translate(p2.getX() - p1.getX(), p2.getY() - p1.getY());
                    targetComponent.repaint();
                }
            } else {
                if (zoomLevel > minZoomLevel) {
                    zoomLevel--;
                    Point2D p1 = transformPoint(p);
                    coordTransform.scale(zoomMultiplicationFactor, zoomMultiplicationFactor);
                    Point2D p2 = transformPoint(p);
                    coordTransform.translate(p2.getX() - p1.getX(), p2.getY() - p1.getY());
                    targetComponent.repaint();
                }
            }
        } catch (NoninvertibleTransformException ex) {
            ex.printStackTrace();
        }
    }
 
    private Point2D.Float transformPoint(Point p1) throws NoninvertibleTransformException {
//        System.out.println("Model -> Screen Transformation:");
//        showMatrix(coordTransform);
        AffineTransform inverse = coordTransform.createInverse();
//        System.out.println("Screen -> Model Transformation:");
//        showMatrix(inverse);
 
        Point2D.Float p2 = new Point2D.Float();
        inverse.transform(p1, p2);
        return p2;
    }
 
    private void showMatrix(AffineTransform at) {
        double[] matrix = new double[6];
        at.getMatrix(matrix);  // { m00 m10 m01 m11 m02 m12 }
        int[] loRow = {0, 0, 1};
        for (int i = 0; i < 2; i++) {
            System.out.print("[ ");
            for (int j = i; j < matrix.length; j += 2) {
                System.out.printf("%5.1f ", matrix[j]);
            }
            System.out.print("]\n");
        }
        System.out.print("[ ");
        for (int i = 0; i < loRow.length; i++) {
            System.out.printf("%3d   ", loRow[i]);
        }
        System.out.print("]\n");
        System.out.println("---------------------");
    }
 
 
    public int getZoomLevel() {
        return zoomLevel;
    }
 
    public void setZoomLevel(int zoomLevel) {
        this.zoomLevel = zoomLevel;
    }
 
    public AffineTransform getCoordTransform() {
        return coordTransform;
    }
 
    public void setCoordTransform(AffineTransform coordTransform) {
        this.coordTransform = coordTransform;
    }
}

[bouye]

Et l'erreur de compilation est ?