Code for Voice Chat.

Dear Friends,
We are facing some problem in Voice Chat Application .
Kindly please send the code for this to the below ID,
[email protected]
Thanks in Advance.
With Regards,
Sarah Stepenson.

The sender part runs ok, but the receiver freezes at the line: audioPlayer = Manager.createRealizedPlayer(url);The problem maybe because you are using same urls in Sender as well as Receiver.
Note:
Let:- address of sender = 192.168.1.100
& address of receiver = 192.168.1.101
Then:- in Sender class you use receiver's address i.e. rtp://192.168.1.101:22224/audio
and in Receiver class you use sender's address i.e. rtp://192.168.1.100:22224/audio
Thanks!

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Code of voice chat(transmitting & recieving voice)

hello this is a complete simple code of sending voice and recieving voice ..but it doe'snt run ...can any one check this..
//code for transmissting voice
import java.io.*;
import java.util.Vector;
import java.net.*;
import javax.media.*;
import javax.media.format.*;
import javax.media.protocol.*;
import javax.media.control.*;
import javax.media.rtp.*;
public class SendVoice1 implements ControllerListener {
     private boolean realized = false;
     private boolean configured = false;
     Processor p;
     CaptureDeviceInfo info;
     public static void main(String [] args) {
          new SendVoice1();
     SendVoice1() {
          Vector v=CaptureDeviceManager.getDeviceList(new AudioFormat(AudioFormat.LINEAR,8000,8,1));
          if (v.size() > 0) {
          info = (CaptureDeviceInfo)v.elementAt(0);
     else {
          System.out.println("No Audio Device Exist");
          try {
               p = Manager.createProcessor(info.getLocator());
          } catch (IOException e) {
          System.out.println(e);
     } catch (NoProcessorException e) {
          System.out.println(e);
          p.addControllerListener(this);
          p.configure();
          while (! configured) {
               try {
                    Thread.currentThread().sleep(100L);;
               } catch (InterruptedException e){}
          p.setContentDescriptor(new ContentDescriptor( ContentDescriptor.RAW));
     TrackControl track[] = p.getTrackControls();
     boolean encodingOk = false;
     for (int i = 0; i < track.length; i++) {
          if (!encodingOk && track[i] instanceof FormatControl) {
          if (((FormatControl)track).setFormat( new AudioFormat(AudioFormat.ULAW_RTP, 8000,8,1)) == null) {
               track[i].setEnabled(false);
          else {
               encodingOk = true;
          else {
               track[i].setEnabled(false);
          if (encodingOk){
               p.realize();
               while (! realized) {
                    try {
                         Thread.currentThread().sleep(100L);;
                    } catch (InterruptedException e) {}
               DataSource ds=null;
               try {
          ds = p.getDataOutput();
          }catch (NotRealizedError e) {
               System.out.println(e);
               try {
          String url= "rtp://127.0.0.1:1500/audio/1";
          MediaLocator m = new MediaLocator(url);
               DataSink d = Manager.createDataSink(ds, m);
               d.open();
          d.start();
                    p.start();
          } catch (Exception e) {
          System.out.println(e);
     public synchronized void controllerUpdate(ControllerEvent evt) {
          if (evt instanceof RealizeCompleteEvent) {
               realized = true;
          else if (evt instanceof ConfigureCompleteEvent) {
               configured = true;
          else if (evt instanceof EndOfMediaEvent) {
               System.exit(0);
          else {
               // System.out.println(evt.toString());
//code for Recieving voice
public class ReVoice1 implements ControllerListener {
     private boolean realized = false;
     private boolean configured = false;
     Player p;
     public static void main(String args[]){
          new ReVoice1();
     ReVoice1(){
          String url= "rtp://192.168.0.92:1500/audio/1";
     MediaLocator mrl= new MediaLocator(url);
          if (mrl == null) {
               System.out.println("Can't build MRL for RTP");
     // Create a player for this rtp session
     try {
          p = Manager.createPlayer(mrl);
     } catch (NoPlayerException e) {
          System.out.println("Error:" + e);
     } catch (MalformedURLException e) {
          System.out.println("Error:" + e);
     } catch (IOException e) {
          System.out.println("Error:" + e);
     if (p != null) {
          if (this.p == null) {
          this.p = p;
          p.addControllerListener(this);
          p.realize();
     public synchronized void controllerUpdate(ControllerEvent evt) {
          if (evt instanceof RealizeCompleteEvent) {
               realized = true;
          else if (evt instanceof ConfigureCompleteEvent) {
               configured = true;
          else if (evt instanceof EndOfMediaEvent) {
               System.exit(0);
          else {
               // System.out.println(evt.toString());
and message comes after runnimg sending file is.
streams is[Lcom.sun.media.multiplexer.RawBufferMux$RawBufferSourceStream;@4ac00
c : 1
sink: setOutputLocator rtp://127.0.0.1:1500/audio/1

Hie there:
Did you get the solution for this error?
I am getting the same error. Not many references.
-Thanks
_DG

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RESULT_FIELDS -xxx = <SOURCE_FIELDS> -xxx
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BEGIN OF tys_TG_1, , shows your result fields ( in your case Cube characteristics)
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Of since you're friends are the ones who receive the error message, perhaps they should upgrade their messenger.

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hello experts,
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Your (codename) Cirrus developer key is:
6620faa05e8785b2ea3616a2-.......
To connect to the Cirrus service, open an RTMFP NetConnection to:
rtmfp://p2p.rtmfp.net/6620faa05e8785b2ea3616a2-.....
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LaalaPanchal wrote:
Hello,
I was just trying the code given in JMF documentation for voice chat. When i ran the below given code, it doesn't throw any error but after running this program when i speak anything into my microphone i am unable to hear anything. What can be the problem?Why exactly are you expecting to hear anything? You don't have anything in your code to render sound, so why're you expecting it to?

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Hello,
I was just trying the code given in JMF documentation for voice chat. When i ran the below given code, it doesn't throw any error but after running this program when i speak anything into my microphone i am unable to hear anything. What can be the problem?
package sendmicrophonedata;
import java.io.IOException;
import java.util.Vector;
import javax.media.CaptureDeviceInfo;
import javax.media.CaptureDeviceManager;
import javax.media.DataSink;
import javax.media.Manager;
import javax.media.MediaLocator;
import javax.media.NoProcessorException;
import javax.media.NotRealizedError;
import javax.media.Processor;
import javax.media.control.FormatControl;
import javax.media.control.TrackControl;
import javax.media.format.AudioFormat;
import javax.media.protocol.ContentDescriptor;
import javax.media.protocol.DataSource;
public class Main {
     * @param args the command line arguments
    public static void main(String[] args) {
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        // data at 8bit 8Khz
        AudioFormat format= new AudioFormat(AudioFormat.LINEAR,
                                            8000,
                                            8,
                                            1);
        Vector devices= CaptureDeviceManager.getDeviceList( format);
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        if (devices.size() > 0) {
             di = (CaptureDeviceInfo) devices.elementAt( 0);
        else {
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        try {
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        } catch (IOException e) {
            System.exit(-1);
        } catch (NoProcessorException e) {
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       // block until it has been configured
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           new ContentDescriptor( ContentDescriptor.RAW));
       TrackControl track[] = processor.getTrackControls();
       boolean encodingOk = false;
       // Go through the tracks and try to program one of them to
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            if (!encodingOk && track[i] instanceof FormatControl) {
            if (((FormatControl)track).
setFormat( new AudioFormat(AudioFormat.GSM_RTP,
8000,
8,
1)) == null) {
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else {
encodingOk = true;
} else {
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track[i].setEnabled(false);
// At this point, we have determined where we can send out
// gsm data or not.
// realize the processor
if (encodingOk) {
processor.realize();
// block until realized.
// get the output datasource of the processor and exit
// if we fail
DataSource ds = null;
try {
ds = processor.getDataOutput();
} catch (NotRealizedError e) {
System.exit(-1);
// hand this datasource to manager for creating an RTP
// datasink our RTP datasimnk will multicast the audio
try {
String url= "rtp://192.168.1.255:8888/audio";
MediaLocator m = new MediaLocator(url);
DataSink d = Manager.createDataSink(ds, m);
d.open();
d.start();
} catch (Exception e) {
System.exit(-1);

LaalaPanchal wrote:
Hello,
I was just trying the code given in JMF documentation for voice chat. When i ran the below given code, it doesn't throw any error but after running this program when i speak anything into my microphone i am unable to hear anything. What can be the problem?Why exactly are you expecting to hear anything? You don't have anything in your code to render sound, so why're you expecting it to?

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This is the direct link:
http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=4644&lngWId=2
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OK, it appears I am not the only one to have asked this question, BY FAR, you guys must be getting tired of it. Sorry about that. I now searched the forum as I should have done before. I found:
http://java.sun.com/products/java-media/jmf/2.1.1/samples/samplecode.html
Is JMStudio what I should look at to learn it? Or is there a more basic voice chat program out there. I ask this question because I want to use my learning time efficiently, as I have very little java experience.

Have anyone got code voice chat?

i need your help for my project.i need the code voice chat using JMF. Please give it to my mail [email protected]
Thanks a lot

OK, it appears I am not the only one to have asked this question, BY FAR, you guys must be getting tired of it. Sorry about that. I now searched the forum as I should have done before. I found:
http://java.sun.com/products/java-media/jmf/2.1.1/samples/samplecode.html
Is JMStudio what I should look at to learn it? Or is there a more basic voice chat program out there. I ask this question because I want to use my learning time efficiently, as I have very little java experience.

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That's exactly what i am talking about. Your IP address is private. Means, it is not routable outside your organization. Means, that you cannot receive anything from outside, because technically this private address does not exist outside your network.
However, you might be able to send audio to someone outside who has public IP address (PLEASE, read up about private and public IPv4 addresses and NAT in order to understand what your problem is. Just one Wiki page that you can dig up in Google.com).
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You have an option though. Go to your network admin and lick his/her brain. Ask for a public IP address (they might have some in reserve). Do the same thing at the remote end.

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