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Play sound in GUI program

I have been experimenting with Java Swing using a GUI and have hit a wall. I am trying to play a sound using Java Sound. Ultimately, I want to push a button and the sound plays. I have tried a lot of combinations but none seem to work. Here is the latest code I tried and I code and it reports:
Error: could not find or load main class.
I am not seeing why:
package net.codejava.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;
import javax.sound.sampled.UnsupportedAudioFileException;
/**
* This is an example program that demonstrates how to play back an audio file
* using the SourceDataLine in Java Sound API.
* #author www.codejava.net
*
*/
public class AudioPlayerExample2 {
// size of the byte buffer used to read/write the audio stream
private static final int BUFFER_SIZE = 4096;
/**
* Play a given audio file.
* #param audioFilePath Path of the audio file.
*/
void play(String audioFilePath) {
File audioFile = new File(audioFilePath);
try {
AudioInputStream audioStream = AudioSystem.getAudioInputStream(audioFile);
AudioFormat format = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, format);
SourceDataLine audioLine = (SourceDataLine) AudioSystem.getLine(info);
audioLine.open(format);
audioLine.start();
System.out.println("Playback started.");
byte[] bytesBuffer = new byte[BUFFER_SIZE];
int bytesRead = -1;
while ((bytesRead = audioStream.read(bytesBuffer)) != -1) {
audioLine.write(bytesBuffer, 0, bytesRead);
}
audioLine.drain();
audioLine.close();
audioStream.close();
System.out.println("Playback completed.");
} catch (UnsupportedAudioFileException ex) {
System.out.println("The specified audio file is not supported.");
ex.printStackTrace();
} catch (LineUnavailableException ex) {
System.out.println("Audio line for playing back is unavailable.");
ex.printStackTrace();
} catch (IOException ex) {
System.out.println("Error playing the audio file.");
ex.printStackTrace();
}
}
public static void main(String[] args) {
String audioFilePath = "https://codehs.com/uploads/1981fc4b1d2e4123e9cbe7ab8cc1962a";
AudioPlayerExample2 player = new AudioPlayerExample2();
player.play(audioFilePath);
}
}

I made a couple small changes to the tutorial code example you posted, and the program worked perfectly well.
Here are my changes:
(1) Replaced "File audioFile = new File(audioFilePath);" with the following:
URL audioFile = null;
try {
audioFile = new URL(audioFilePath);
} catch (MalformedURLException e) {
e.printStackTrace();
}
(2) Added the following line to the module-info file (required if you are using Java 9 or higher):
requires java.desktop;
My package setting is slightly different, but I assume you know how to properly set up packages. Your class is in the file folder specified by the package statement, yes?
The error being cited: "could not find or load main class" indicates that something is going wrong with how the code is being invoked rather than a problem with the audio part of the code. What version of Java are you using? What IDE? What is the command you are issuing to execute the program? FWIW, my setup that successfully executed this code has an up-to-date Eclipse IDE running Java 11.
Nam Ha Minh's tutorials at codejava.net usually are quite good. I think he is one of the more reliable tutorial writers out there.

Play back audio streamed over http

I am working on a small instant messenger project that implements a custom encryption algorithm I've developed. However, networking isn't my strong area.
Basically, here I'm trying to provide a synchronized audio output stream using a one to many arches.
So, so far, I've managed to pipe out the audio over an HTTP connection in base64 encoded format, but here, I am stuck.
I have no idea how to play back the audio in real time, without reading the same audio data twice(overlap)
audio server
here's my server-side code, please be kind if I have mucked up the whole thing, but I think I've got this part working correctly.
/*
* Decompiled with CFR 0.139.
*/
package SIM.net.client.networking;
import DARTIS.crypt;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.TargetDataLine;
import com.sun.org.apache.xml.internal.security.utils.Base64;
public class audioServer {
public static void start(String[] key) {
AudioFormat format = new AudioFormat(8000.0f, 16, 1, true, true);
TargetDataLine microphone = null;
try {
microphone = AudioSystem.getTargetDataLine(format);
} catch (LineUnavailableException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
DataLine.Info info = new DataLine.Info(TargetDataLine.class, format);
try {
microphone = (TargetDataLine)AudioSystem.getLine(info);
} catch (LineUnavailableException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
microphone.open(format);
} catch (LineUnavailableException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ByteArrayOutputStream out = new ByteArrayOutputStream();
int CHUNK_SIZE = 1024;
byte[] data = new byte[microphone.getBufferSize() / 5];
microphone.start();
int bytesRead = 0;
do {
if (bytesRead >= 4096) {
byte[] audioData = out.toByteArray();
String base64img = Base64.encode(audioData);
String audioclip;
if (key.length > 9999) {
audioclip = crypt.inject(base64img, key);
} else {
audioclip = base64img;
}
audioHandler.setdata(audioclip);
bytesRead = 0;
out.reset();
} else {
int numBytesRead = microphone.read(data, 0, CHUNK_SIZE);
System.out.println(bytesRead += numBytesRead);
out.write(data, 0, numBytesRead);
}
}
while (true);
}
}
audio handler
package SIM.net.client.networking;
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.URI;
import java.util.HashMap;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
public class audioHandler
implements HttpHandler {
public static String audiodata;
public static void setdata(String imgdta) {
audiodata = imgdta;
}
public void handle(HttpExchange he) throws IOException {
HashMap parameters = new HashMap();
}
public static void main(String[] args) throws Exception {
HttpServer server = HttpServer.create(new InetSocketAddress(9991), 0);
server.createContext("/audio", new MyHandler());
server.setExecutor(null); // creates a default executor
server.start();
audioServer.start(new String[3]);
}
static class MyHandler implements HttpHandler {
#Override
public void handle(HttpExchange he) throws IOException {
URI requestedUri = he.getRequestURI();
String query = requestedUri.getRawQuery();
he.sendResponseHeaders(200, audiodata.replace("\n", "").replace("\r", "").length());
OutputStream os = he.getResponseBody();
os.write(audiodata.toString().replace("\n", "").replace("\r", "").getBytes());
os.close();
}
}
}
Please understand, this code was originally written to stream webcam snapshots over http in real time, one frame at a time, if this design isn't suitable for audio streaming, please point me in the right direction, I usually learn best from running examples, editing, and observing the changes in it's output, so any sample/example code would help greatly.(im not asking you to solve it for me 100%, just some pointers in the right direction and example code)

javax.sound.sampled.LineUnavailableException on attempt to record sound

I am making a java voice chat program and the server side voice class is throwing this error
javax.sound.sampled.LineUnavailableException: line with format PCM_SIGNED 8000.0 Hz, 8 bit, mono, 1 bytes/frame, not supported.
at com.sun.media.sound.DirectAudioDevice$DirectDL.implOpen(DirectAudioDevice.java:513)
at com.sun.media.sound.AbstractDataLine.open(AbstractDataLine.java:121)
at com.sun.media.sound.AbstractDataLine.open(AbstractDataLine.java:153)
at client.VoiceUser.run(VoiceUser.java:34)
the error is being thrown on this line of code
microphone.open(audioformat);
Code:
package client;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.util.ArrayList;
import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioSystem;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.TargetDataLine;
public class VoiceUser extends Thread {
private ObjectOutputStream clientOutput;
private TargetDataLine microphone;
private ArrayList<ObjectOutputStream> vOutputArray = new ArrayList<ObjectOutputStream>();
private AudioFormat audioformat;
public VoiceUser(Socket sv, ArrayList<ObjectOutputStream> outputArray) throws LineUnavailableException {
try {
clientOutput = new ObjectOutputStream(sv.getOutputStream());
vOutputArray.equals(clientOutput);
vOutputArray.add(clientOutput);
} catch (IOException e) {
System.out.println("Can't create stable connection between server and client");
}
}
public void run() {
try {
DataLine.Info info = new DataLine.Info(TargetDataLine.class, audioformat);
microphone = (TargetDataLine)AudioSystem.getLine(info);
audioformat = new AudioFormat(8000.0f,8,1,true,false);
microphone.open(audioformat);
microphone.start();
} catch (LineUnavailableException e) {
e.printStackTrace();
}
int bytesRead = 0;
byte[] soundData = new byte[3072];
int offset = 0;
while(bytesRead != -1)
{
bytesRead = microphone.read(soundData, 0, soundData.length);
if(bytesRead >= 0) {
offset += bytesRead;
if(offset == soundData.length) {
send(soundData, bytesRead);
offset = 0;
}
}
}
}
public void send(byte[] soundData, int bytesRead) {
for(ObjectOutputStream o : vOutputArray) {
try {
o.write(soundData, 0, bytesRead);
o.flush();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

It tells you that line is not available. There are couple of reasons - your sound card does not support recording at that specific format you specified. You can try different formats, for example 22050Hz might be supported.
Another reason, the sound card is already busy with recording. On Windows you can not record with two microphones simultaneously. You need to redesign your server to allow just a single recording session.

Java UnsupportedAudioFileException

I'm reading codec file and converting to mp3/wav file using Java and Java Sound but getting the following Error.
Error
javax.sound.sampled.UnsupportedAudioFileException: file is not a supported file type
at javax.sound.sampled.AudioSystem.getAudioFileFormat(AudioSystem.java:1076)
at test.postingstackOverflow.main(postingstackOverflow.java:29)
Code
package test;
import java.io.File;
import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;
/**
*
* #author shankar
*/
public class postingstackOverflow {
public static void main(String args[]){
AudioFileFormat inputFileFormat=null;
javax.sound.sampled.AudioFormat audioFormat =null;
AudioInputStream encodedASI=null;
AudioInputStream ais=null;
try{
inputFileFormat = AudioSystem.getAudioFileFormat(new File("/media/shankar/voip/Temp/JavaSound/1000.g711u"));
ais = AudioSystem.getAudioInputStream(new File("/media/shankar/voip/Temp/JavaSound/1000.g711u"));
audioFormat = ais.getFormat();
encodedASI = AudioSystem.getAudioInputStream(javax.sound.sampled.AudioFormat.Encoding.ULAW, ais);
int i = AudioSystem.write(encodedASI, AudioFileFormat.Type.WAVE, new File("/media/shankar/voip/Temp/JavaSound/converted.mp3"));
}catch(Exception e){
e.printStackTrace();
}finally{
try{
if(encodedASI!=null)
encodedASI.close();
if(ais!=null)
ais.close();
if(encodedASI!=null)
encodedASI.close();
}catch(Exception expClose){
expClose.printStackTrace();
}
}//end finally
}
}
Can anyone tell me how solve reading a μ-law file?

error playing sound java (No line matching interface Clip supporting format)

We are trying to integrated sound in one of our project, my team members don't get this error, and I get it on two different machines.
Stack trace:
Exception in thread "SoundPlayer" java.lang.IllegalArgumentException: No line matching interface Clip supporting format PCM_SIGNED 16000.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian, and buffers of 11129272 to 11129272 bytes is supported.
at javax.sound.sampled.AudioSystem.getLine(Unknown Source)
at sound.Music.run(Music.java:86)
at java.lang.Thread.run(Unknown Source)
Code:
package 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.Clip;
import javax.sound.sampled.DataLine;
import javax.sound.sampled.FloatControl;
import javax.sound.sampled.LineEvent;
import javax.sound.sampled.LineListener;
import javax.sound.sampled.LineUnavailableException;
import javax.sound.sampled.UnsupportedAudioFileException;
public class Music implements LineListener, Runnable
{
private File soundFile;
private Thread thread;
private static Music player;
private Music audio;
private Clip clip;
public Music()
{
}
public void playSiren(String musicFileName)
{
Music p = getPlayer();
p.playSirenFile(musicFileName);
}
private void playSirenFile(String musicFileName)
{
this.soundFile = new File("Music/"+musicFileName+".wav");
thread = new Thread(this);
thread.setName("SoundPlayer");
thread.start();
}
public void run()
{
try
{
AudioInputStream stream = AudioSystem.getAudioInputStream(this.soundFile);
AudioFormat format = stream.getFormat();
/**
* we can't yet open the device for ALAW/ULAW playback, convert
* ALAW/ULAW to PCM
*/
if ((format.getEncoding() == AudioFormat.Encoding.ULAW) || (format.getEncoding() == AudioFormat.Encoding.ALAW))
{
AudioFormat tmp = new AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
format.getSampleRate(),
format.getSampleSizeInBits() * 2, format.getChannels(),
format.getFrameSize() * 2, format.getFrameRate(), true);
stream = AudioSystem.getAudioInputStream(tmp, stream);
format = tmp;
}
DataLine.Info info = new DataLine.Info(Clip.class, stream
.getFormat(), ((int) stream.getFrameLength() * format
.getFrameSize()));
clip = (Clip) AudioSystem.getLine(info);
clip.addLineListener(this);
clip.open(stream);
clip.start();
try
{
thread.sleep(99);
}
catch (Exception e)
{
}
while (clip.isActive() && thread != null)
{
try
{
thread.sleep(99);
}
catch (Exception e)
{
break;
}
}
clip.loop(99999999);
}
catch (UnsupportedAudioFileException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (LineUnavailableException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
private static Music getPlayer()
{
if (player == null)
{
player = new Music();
}
return player;
}
public void update(LineEvent event)
{
}
public void stopClip()
{
clip.stop();
}
public void closeClip()
{
clip.close();
}
public void startClip()
{
clip.start();
}
public void volume(float volume)
{
/*
FloatControl gainControl = (FloatControl) clip.getControl(FloatControl.Type.MASTER_GAIN);
gainControl.setValue(-50.0f); // Reduce volume IN DECIBELS
clip.start();
*/
}
}
We call this class from domainController with
audio = new Music();
audio.playSiren("stillAliveDecent");
does Anyone have an idea how this exception can be resolved?
I tried reinstalling my editor software (Eclipse) but to no avail.
thanks allot in advance.
Edit
We just tried switching the sound file. We tried running it with much smaller file. this now works, but once we switch back to the larger .wav file (10+MB) I get the exception again.
Only using smaller files is not really an option as we would like to use some self made songs which are quite long.
Edit 2
I'm quite sure it isn't a corrupted wav. we recompiled it, even used another wave of similar length and size, and i'm still the only one getting this error.
some extra requested info:
OS: Windows 7 64bit Ultimate
JDK: 1.6.0_22
Edit 3
After some wave creating and playing we have come to the conclusion that for some reason I can't play wave's larger than 2MB.
Still why aren't my teammates affected by this?

I was experiencing this same problem on a raspberry pi. It would play the first 5 files just fine, then I'd get the error. It turned out that I was not closing the clip when I needed to.
Clip clip = AudioSystem.getClip();
clip.addLineListener(event -> {
if(LineEvent.Type.STOP.equals(event.getType())) {
clip.close();
}
});
ByteArrayInputStream audioBytes = new ByteArrayInputStream(SOUNDS.get(file));
AudioInputStream inputStream = AudioSystem.getAudioInputStream(audioBytes);
clip.open(inputStream);
clip.start();
After adding the line listener and closing the clip when it stopped, the errors went away.

You can actually play sound above 40 mb, if needed, thats how far i went :p, the problem is mostly eclipse, and to be more exact its the .metadata folder in your workspace i think its like a small plugin that only gets uploaded half of the time, so the problem lies with your editor and not the code, the code above is working perfectly since i could play songs without any trouble. Make sure your paths are correct, and try to get a correct version of the .metadata and you should be fine. A friend of mine had the same problem, and i gave him my copy of the workspace and .metadata and it worked perfectly.