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How to play a mono sound with Java in a 4.0 speakers configuration

I need to play a .wav mono file in Java (possibly preloading it in RAM) to all the speakers of a 4.0 speakers configuration. I also need to adjust the volume of each of the channels independently while the audio is playing, leaving the system volume unchanged.
This is my current code. It's nowhere near what I need.
How can I do that? Thanks.
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.Mixer;
import javax.sound.sampled.SourceDataLine;
public class AudioPlayer extends Thread {
private final int BUFFER_SIZE = 128000;
private File soundFile;
private AudioInputStream audioStream;
private AudioFormat audioFormat;
private SourceDataLine sourceLine;
String filename;
Mixer mixer;
public void load(String filename) {
this.filename = filename;
}
public AudioPlayer() {
}
public void run() {
try {
soundFile = new File(filename);
audioStream = AudioSystem.getAudioInputStream(soundFile);
audioFormat = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
#SuppressWarnings("unused")
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
}
}

How can I add sound to a java program

I have been trying to write a basic 'Jeopardy' game in java, and right now I'm trying to add sound to play when the player get's an answer right or wrong. I have tried to add the sound (placing the sound file in the bin folder and using the code below), but when I try to play the file there is no sound. There is no null pointer exception.
public class Overview{
static AudioClip right, wrong;
//start the game
public static void guiApp(){
right = Applet.newAudioClip(Jeopardy.class.getResource("correct.wav"));
wrong = Applet.newAudioClip(Jeopardy.class.getResource("wrong.wav"));
right.play();
intro = new Intro();
intro.start();
}
public static void main (String[ ] args)
{
javax.swing.SwingUtilities.invokeLater (new Runnable ( )
{
public void run ( )
{
guiApp();
}
}
);
}
}
The following is essentially what is happening in the method called:
public class Intro{
public Intro(){
}
public void start(){
JFrame frame = new JFrame();
frame.setSize(100, 100);
frame.setVisible(true);
}
}

This is something that i use to play sound.
import java.io.File;
import java.io.IOException;
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;
public class SoundPlayer extends Thread
{
private static final int BUFFER_SIZE = 128000;
private static File soundFile;
private static AudioInputStream audioStream;
private static AudioFormat audioFormat;
private static SourceDataLine sourceLine;
private String file;
public static String turn = "data/bell.wav"; //bell sound for black jack when it is your turn (played once each turn)
/**
* Plays the sound of the sent file name
* #param file Audio File's path
*/
public SoundPlayer(String file)
{
super("SoundPlayer");
this.file = file;
start();
}
public void run()
{
String strFilename = file;
try {
soundFile = new File(strFilename);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
try {
audioStream = AudioSystem.getAudioInputStream(soundFile);
} catch (Exception e){
e.printStackTrace();
System.exit(1);
}
audioFormat = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
try {
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (LineUnavailableException e) {
e.printStackTrace();
System.exit(1);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
#SuppressWarnings("unused")
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
this.stop();
}
public static void main(String[] args)
{
}
}

How can I do for recording Audio from sound-card using java?

I want to record audio from sound-card using java. so this is what i got. but it only creats 0 sec wav file. recording didn't work with this code.
How can I do for recording Audio from sound-card? Please help TT
import java.io.IOException;
import java.io.File;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.TargetDataLine;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.AudioFileFormat;
public class SimpleAudioRecorder extends Thread
{
private TargetDataLine m_line;
private AudioFileFormat.Type m_targetType;
private AudioInputStream m_audioInputStream;
private File m_outputFile;
public SimpleAudioRecorder(TargetDataLine line,
AudioFileFormat.Type targetType, File file) {
m_line = line;
m_audioInputStream = new AudioInputStream(line);
m_targetType = targetType;
m_outputFile = file;
}
public void start() {
m_line.start();
super.start();
}
public void stopRecording() {
m_line.stop();
m_line.close();
}
public void run() {
try {
AudioSystem.write(m_audioInputStream, m_targetType, m_outputFile);
} catch (IOException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
String strFilename = "D://wave.wav";
File outputFile = new File(strFilename);
AudioFormat audioFormat = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED, 44100.0F, 16, 2, 4, 44100.0F,
false);
DataLine.Info info = new DataLine.Info(TargetDataLine.class,
audioFormat);
TargetDataLine targetDataLine = null;
try {
targetDataLine = (TargetDataLine) AudioSystem.getLine(info);
targetDataLine.open(audioFormat);
} catch (LineUnavailableException e) {
out("unable to get a recording line");
e.printStackTrace();
System.exit(1);
}
AudioFileFormat.Type targetType = AudioFileFormat.Type.WAVE;
SimpleAudioRecorder recorder = new SimpleAudioRecorder(targetDataLine,
targetType, outputFile);
out("Press ENTER to start the recording.");
try {
System.in.read();
} catch (IOException e) {
e.printStackTrace();
}
recorder.start();
out("Recording...");
out("Press ENTER to stop the recording.");
try {
System.in.read();
} catch (IOException e) {
e.printStackTrace();
}
recorder.stopRecording();
out("Recording stopped.");
}
private static void printUsageAndExit() {
out("SimpleAudioRecorder: usage:");
out("\tjava SimpleAudioRecorder -h");
out("\tjava SimpleAudioRecorder <audiofile>");
System.exit(0);
}
private static void out(String strMessage) {
System.out.println(strMessage);
}
}

I think TargetDataLine method does not have start() method it uses read() method instead.

How to play .wav files in java without lag for games

I have a game that I want to play audio in. What I want to be able to do is that I should be able to declare a ClipPlayer object with the arguments of a path name. Then the constructor should be able to load the sound and then I can just make a call with that object so it won't lag. This is the code that I am using currently for sound:
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
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.UnsupportedAudioFileException;
public class ClipPlayer {
AudioInputStream in;
AudioFormat decodedFormat;
AudioInputStream din;
AudioFormat baseFormat;
SourceDataLine line;
private boolean loop;
private BufferedInputStream stream;
// private ByteArrayInputStream stream;
/**
* recreate the stream
*
*/
public void reset() {
try {
stream.reset();
in = AudioSystem.getAudioInputStream(stream);
din = AudioSystem.getAudioInputStream(decodedFormat, in);
line = getLine(decodedFormat);
} catch (Exception e) {
e.printStackTrace();
}
}
public void close() {
try {
line.close();
din.close();
in.close();
} catch (IOException e) {
}
}
ClipPlayer(String filename, boolean loop) {
this(filename);
this.loop = loop;
}
ClipPlayer(String filename) {
this.loop = false;
try {
InputStream raw = Object.class.getResourceAsStream(filename);
stream = new BufferedInputStream(raw);
// ByteArrayOutputStream out = new ByteArrayOutputStream();
// byte[] buffer = new byte[1024];
// int read = raw.read(buffer);
// while( read > 0 ) {
// out.write(buffer, 0, read);
// read = raw.read(buffer);
// }
// stream = new ByteArrayInputStream(out.toByteArray());
in = AudioSystem.getAudioInputStream(stream);
din = null;
if (in != null) {
baseFormat = in.getFormat();
decodedFormat = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED, baseFormat
.getSampleRate(), 16, baseFormat.getChannels(),
baseFormat.getChannels() * 2, baseFormat
.getSampleRate(), false);
din = AudioSystem.getAudioInputStream(decodedFormat, in);
line = getLine(decodedFormat);
}
} catch (UnsupportedAudioFileException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (LineUnavailableException e) {
e.printStackTrace();
}
}
private SourceDataLine getLine(AudioFormat audioFormat)
throws LineUnavailableException {
SourceDataLine res = null;
DataLine.Info info = new DataLine.Info(SourceDataLine.class,
audioFormat);
res = (SourceDataLine) AudioSystem.getLine(info);
res.open(audioFormat);
return res;
}
public void play() {
try {
boolean firstTime = true;
while (firstTime || loop) {
firstTime = false;
byte[] data = new byte[4096];
if (line != null) {
line.start();
int nBytesRead = 0;
while (nBytesRead != -1) {
nBytesRead = din.read(data, 0, data.length);
if (nBytesRead != -1)
line.write(data, 0, nBytesRead);
}
line.drain();
line.stop();
line.close();
reset();
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
}

Declare, load and cache the sounds as class attributes. Then when it is time to hear them, play them in a Clip.

java - for loop is executing more times than it should - metronome program

I am creating a metronome program and the for loop is executing +1 times than it should.
public class Tempo {
String file;
int bpm;
public Tempo(int bpm, String file){
this.bpm=bpm;
this.file=file;
}
public void tempoPlay () throws InterruptedException{
new Play(file).start();
Thread.sleep(60000/bpm);
}
public static void main(String[] args) throws InterruptedException {
Tempo t = new Tempo(120, "C:\\Users\\Korisnik\\Desktop\\dome3.wav");
for(int i=0;i<20;i++){
t.tempoPlay();
}
}
}
The first beat is rapidly followed by the second one but later as it goes it is sounding compliant. I've counted it plays 21 beats but it should play 20.
Here's the Play class:
import java.io.File;
import java.io.IOException;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.SourceDataLine;
import javax.sound.sampled.UnsupportedAudioFileException;
class Play extends Thread {
private String filename;
private Position curPosition;
private final int EXTERNAL_BUFFER_SIZE = 524288; // 128Kb
enum Position {
LEFT, RIGHT, NORMAL
};
public Play(String wavfile) {
filename = wavfile;
curPosition = Position.NORMAL;
}
public Play(String wavfile, Position p) {
filename = wavfile;
curPosition = p;
}
#Override
public void run() {
File soundFile = new File(filename);
if (!soundFile.exists()) {
System.err.println("Wave file not found: " + filename);
return;
}
AudioInputStream audioInputStream = null;
try {
audioInputStream = AudioSystem.getAudioInputStream(soundFile);
} catch (UnsupportedAudioFileException e1) {
e1.printStackTrace();
return;
} catch (IOException e1) {
e1.printStackTrace();
return;
}
AudioFormat format = audioInputStream.getFormat();
SourceDataLine auline = null;
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
try {
auline = (SourceDataLine) AudioSystem.getLine(info);
auline.open(format);
} catch (LineUnavailableException e) {
e.printStackTrace();
return;
} catch (Exception e) {
e.printStackTrace();
return;
}
if (auline.isControlSupported(FloatControl.Type.PAN)) {
FloatControl pan = (FloatControl) auline
.getControl(FloatControl.Type.PAN);
if (curPosition == Position.RIGHT) {
pan.setValue(1.0f);
} else if (curPosition == Position.LEFT) {
pan.setValue(-1.0f);
}
}
auline.start();
int nBytesRead = 0;
byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];
try {
while (nBytesRead != -1) {
nBytesRead = audioInputStream.read(abData, 0, abData.length);
if (nBytesRead >= 0) {
auline.write(abData, 0, nBytesRead);
}
}
} catch (IOException e) {
e.printStackTrace();
return;
} finally {
auline.drain();
auline.close();
}
}
}

Shot in the dark: It might be worthwhile to read the file into memory completely for testing purposes. A guess as to what might be happening is that the I/O from reading the file is interfering with the timing of the playback.
You might be able to get away with this to test.
Tempo t = new Tempo(120, "C:\\Users\\Korisnik\\Desktop\\dome3.wav");
t.tempoPlay() // ignore this
Thread.sleep(10);
for(int i=0;i<20;i++){
t.tempoPlay();
}
Or better yet, have Tempo cache the read in before playing the sound.