Mon Dec 09, 2013 12:19 pm
public class Capture extends JFrame {
protected boolean running;
ByteArrayOutputStream out;
public Capture() {
super("Capture Sound Demo");
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container content = getContentPane();
final JButton capture = new JButton("Capture");
final JButton stop = new JButton("Stop");
final JButton play = new JButton("Play");
capture.setEnabled(true);
stop.setEnabled(false);
play.setEnabled(false);
ActionListener captureListener =
new ActionListener() {
public void actionPerformed(ActionEvent e) {
capture.setEnabled(false);
stop.setEnabled(true);
play.setEnabled(false);
captureAudio();
}
};
capture.addActionListener(captureListener);
content.add(capture, BorderLayout.NORTH);
ActionListener stopListener =
new ActionListener() {
public void actionPerformed(ActionEvent e) {
capture.setEnabled(true);
stop.setEnabled(false);
play.setEnabled(true);
running = false;
}
};
stop.addActionListener(stopListener);
content.add(stop, BorderLayout.CENTER);
ActionListener playListener =
new ActionListener() {
public void actionPerformed(ActionEvent e) {
playAudio();
}
};
play.addActionListener(playListener);
content.add(play, BorderLayout.SOUTH);
}
private void captureAudio() {
try {
final AudioFormat format = getFormat();
DataLine.Info info = new DataLine.Info(
TargetDataLine.class, format);
final TargetDataLine line = (TargetDataLine)
AudioSystem.getLine(info);
line.open(format);
line.start();
Runnable runner = new Runnable() {
int bufferSize = (int)format.getSampleRate()
* format.getFrameSize();
byte buffer[] = new byte[bufferSize];
public void run() {
out = new ByteArrayOutputStream();
running = true;
try {
while (running) {
int count =
line.read(buffer, 0, buffer.length);
if (count > 0) {
out.write(buffer, 0, count);
System.out.println(line.getLevel()); // |-this is what i added-|
}
}
out.close();
} catch (IOException e) {
System.err.println("I/O problems: " + e);
System.exit(-1);
}
}
};
Thread captureThread = new Thread(runner);
captureThread.start();
} catch (LineUnavailableException e) {
System.err.println("Line unavailable: " + e);
System.exit(-2);
}
}
private void playAudio() {
try {
byte audio[] = out.toByteArray();
InputStream input =
new ByteArrayInputStream(audio);
final AudioFormat format = getFormat();
final AudioInputStream ais =
new AudioInputStream(input, format,
audio.length / format.getFrameSize());
DataLine.Info info = new DataLine.Info(
SourceDataLine.class, format);
final SourceDataLine line = (SourceDataLine)
AudioSystem.getLine(info);
line.open(format);
line.start();
Runnable runner = new Runnable() {
int bufferSize = (int) format.getSampleRate()
* format.getFrameSize();
byte buffer[] = new byte[bufferSize];
public void run() {
try {
int count;
while ((count = ais.read(
buffer, 0, buffer.length)) != -1) {
if (count > 0) {
line.write(buffer, 0, count);
}
}
line.drain();
line.close();
} catch (IOException e) {
System.err.println("I/O problems: " + e);
System.exit(-3);
}
}
};
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