Voice chat on imac

Hi~~~my yahoo messenger voice chat has been cutting out and not sure why---is this a common thing with yahoo or is this maybe a imac issue ???

Hi Joni2b,
Welcome to the Apple Discussions
Any Firewire DV output (6 pin to 6pin) Camcorder
Any Firewire Web cam
Any USB cam that has Mac drivers and this Utility http://www.ecamm.com/mac/ichatusbcam/
The chances are that any USB cam is going to have Windows drivers (if you need them for a Intel)
Logitec and iMage seem to be offered up as choices at the moment.
A Camcorder is likely to work as Mic as well others may need a separate Mic. Use USB
2:07 PM Wednesday; January 31, 2007

Similar Messages

Voice Chat with iMac

Is there a way to have a voice chat using an iMac?

You may need to open certain firewall ports for audio and video to go through on both your router, and the Security system preferences. I know that's the case for iChat. Could also be the case for Google.

Voice chat without specifying ip

is there anyway to develop voice chat without specifying ip.and also to be used private ip.
similar to skype. any sample code available.

HI,
The link also requires you to be able to Answer a Video Chat (so you need the Internet speed)
It is also only about the iPhone and not the version of the Mac.
Basically it does not help move things forward.
Based on it's age I ignored the new Post.
However if other people are also subscribed to the Thread like I am I can see more people returning in which case it needs some explaining.
7:34 PM Wednesday; September 4, 2013
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.4)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Voice Chat without Video in FaceTime

Hello everyone,
Is it not possible to voice chat without the video while using Messages and FaceTime? It appears quite ridiculous that when having a weak internet connection, one cannot even just switch off the video and continue talking.
Please let me know.
Nimāi Paṇḍita.

HI,
The link also requires you to be able to Answer a Video Chat (so you need the Internet speed)
It is also only about the iPhone and not the version of the Mac.
Basically it does not help move things forward.
Based on it's age I ignored the new Post.
However if other people are also subscribed to the Thread like I am I can see more people returning in which case it needs some explaining.
7:34 PM Wednesday; September 4, 2013
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.4)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Voice chat hics up during screensharing

Hi all, since I did not find a special section for Messages, I post this question here. I am running a Mac Pro with Mountain Lion an Messages, my colleagues run 27" IMacs with Lion and IChat. When we share the screen it randomly happens that our voice chat in that session hics up. Sadly it is allways my voice with that problem so the only thing the other can do is to terminate my yo-yo-yo-yo and switch back to a normal chat. So I think I have to seek for the problem at my side and wonder if it could be a open ports thing or is it a bug in Messages? Anybody an idea?
Thanks in advance and kind regards, Julius

HI,
One thing that can happen with very fast connections is that the "natural" variance in the speed of any one moment can be too large for the buffering in iChat/Messages to cope with.
Lets say you are having a Video chat and have the Connection Doctor open (Video Menu)
This will show you the live Bit Rate and Frame rate the app is achieving.
If you then change the Bandwidth Limit to something like 200kbps you will see the bit rate change very slowly as the Buffering in the app smooths out the change.
It tried to do this during a normal chat if the Speed is varying all the time.
It does this by dropping frames until such point the audio will not be in sync and then Audio is dropped, leaving pics only.
One thing to consider is whether any variances you and your Buddy are having are in sync.
They could be getting faster whist your end is getting slower and exaggerating the change in speed.
500kbps is fast enough to Host a 4 way Video chat.
A 10Mbps service with a 5% variance is speed could be losing that same 500kbps in speed.
If your Buddy has a similar speed and also varies by 5% there could be a 10% variance overall.
Although I have spoken mostly about Video Chats here it seems that the VNC connection that shows you the desktop in the iChat Screen Sharing is more prone to stutter when the internet speed is less stable.
7:41 PM Sunday; November 11, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.2)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously

Hi all. I want to make audio chat with my brother. I use iChat on my MBP. He uses Gtalk on his windows PC. The problem is that the audio icon is gray. Is there anyway? Can iChat make voice chat with Gtalk on windows?

Hi all. I want to make audio chat with my brother. I use iChat on my MBP. He uses Gtalk on his windows PC. The problem is that the audio icon is gray so I cannot start audio chat. Is there anyway? Can iChat make voice chat with Gtalk on windows or not? I am confused.

HI,
You need to satisfy several things along the way
Account type
You need to have a Jabber or Google mail Account your self.
If you have a Google Mail Account then it needs the "Talk" option Enabled in your Google account Settings ( A Facebook with "Chat" enabled is also a valid Jabber ID to use in iChat).
Connection Method
This is about which apps can connect to which apps for Video ro Audio to work.
iChat Video when using a Jabber account is iChat to iChat Only.
iChat connects using a process called SIP (Session Initiation Protocol)
Jabber based Apps if they have an A/V module connect using protocol called Jingle.
Needless to say Google do their own version of this that is written in to the web Browser Plugin that allows Video Chats (there are PC and Mac versions), and in the PC app called GoogleTalk.
However it is also not that compatible with other Jabber apps.
See Jingle here
This claims, now, that Google had a hand in writing the Protocol.
Also in the "Clients Supporting Jingle" list many more version of Google products are mentioned with extended info. (it suggests that someone at Google has been editing the page).
Can iChat make voice chat with Gtalk on windows or not?
The specific answer to this to be clear is NO.
We are talking about different Apps (or web Browser Plugins) using different Internet Protocols that are not compatible.
The simplest thing is to get the Web Browser Plugin (However there can be issues with the Flash Plugin)
At one time Google used Flash to do Video Chats and it would seem their Plugin is very close to this part of Flash.
See the Known Issues and the "Google Talk Plugin Disables iSight On Mac" item.
Options
Use a Web Browser yourself with the Plugin.
Use a Flash Base Site such as MeBeam (Flash has to be enabled in your Browser and the instructions are simple on the page)
Try to find a Jingle capable Mac Jabber Client (app) ( I have not found one).
9:42 PM Monday; July 23, 2012
Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"
 iMac 2.5Ghz 5i 2011 (Lion 10.7.2)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously

How can i run java on the i mac to start the voice chat?

i have imac
and i have downloaded java
i want to open voice chat websites
e.g. www.63oon.com

Hello,
Not sure, but could it be this?
Java for OS X 2012-006: How to re-enable the Apple-provided Java SE 6 applet plug-in and Web Start functionality
http://support.apple.com/kb/HT5559

Voice chat program

After a few days work, I have completed the mian voice chat program. I know there are so many people like me that wants that. I post these program. i will complete gui work later. and there is a problem in the program. if the speaking one do not speak for a while, the listening client will hear noise. Can some one help me.
package com.longshine.voice;
import java.io.*;
import java.net.*;
import java.util.*;
public class Server
// The ServerSocket we'll use for accepting new connections
private ServerSocket ss;
// A mapping from sockets to DataOutputStreams. This will
// help us avoid having to create a DataOutputStream each time
// we want to write to a stream.
private Hashtable outputStreams = new Hashtable();
final int bufSize = 16384;
//current speak_man
private int speakman=-1;
// Constructor and while-accept loop all in one.
public Server( int port ) throws IOException {
// All we have to do is listen
listen( port );
private void listen( int port ) throws IOException {
// Create the ServerSocket
ss = new ServerSocket( port );
// Tell the world we're ready to go
System.out.println( "Listening on "+ss );
// Keep accepting connections forever
while (true) {
// Grab the next incoming connection
Socket s = ss.accept();
// Tell the world we've got it
System.out.println( "Connection from "+s );
// Create a DataOutputStream for writing data to the
// other side
DataOutputStream dout = new DataOutputStream( s.getOutputStream() );
// Save this stream so we don't need to make it again
outputStreams.put( s, dout );
// Create a new thread for this connection, and then forget
// about it
new VoiceServer( this, s );
// Get an enumeration of all the OutputStreams, one for each client
// connected to us
Enumeration getOutputStreams() {
return outputStreams.elements();
// Send a message to all clients (utility routine)
void sendToAll( byte[] voice ,Socket socket) {
// We synchronize on this because another thread might be
// calling removeConnection() and this would screw us up
// as we tried to walk through the list
synchronized( outputStreams ) {
// For each client ...
for (Enumeration e = outputStreams.keys(); e.hasMoreElements(); ) {
// ... get the output stream ...
Socket tmp=(Socket)e.nextElement();
if(!tmp.equals(socket))
try {
DataOutputStream dout = new DataOutputStream(tmp.getOutputStream());
// ... and send the message
dout.write(voice,0,44096);
dout.flush();
} catch( IOException ie ) { System.out.println( ie ); }
// Remove a socket, and it's corresponding output stream, from our
// list. This is usually called by a connection thread that has
// discovered that the connectin to the client is dead.
void removeConnection( Socket s ) {
// Synchronize so we don't mess up sendToAll() while it walks
// down the list of all output streamsa
synchronized( outputStreams ) {
// Tell the world
System.out.println( "Removing connection to "+s );
// Remove it from our hashtable/list
outputStreams.remove( s );
// Make sure it's closed
try {
s.close();
} catch( IOException ie ) {
System.out.println( "Error closing "+s );
ie.printStackTrace();
// Main routine
// Usage: java Server <port>
static public void main( String args[] ) throws Exception {
// Get the port # from the command line
int port = Integer.parseInt( args[0] );
// Create a Server object, which will automatically begin
// accepting connections.
new Server( port );
package com.longshine.voice;
import java.net.*;
import java.io.*;
import java.sql.*;
import java.io.*;
import java.net.*;
public class VoiceServer extends Thread
// The Server that spawned us
private Server server;
final int bufSize = 16384;
// The Socket connected to our client
private Socket socket;
// Constructor.
public VoiceServer( Server server, Socket socket ) {
// Save the parameters
this.server = server;
this.socket = socket;
// Start up the thread
start();
// This runs in a separate thread when start() is called in the
// constructor.
public void run() {
try {
// Create a DataInputStream for communication; the client
// is using a DataOutputStream to write to us
DataInputStream din = new DataInputStream( socket.getInputStream() );
byte[] voice=new byte[44096];
// Over and over, forever ...
while (true) {
// ... read the next message ...
// int bytes = din.read(voice,0,44096);
int bytes = din.read(voice);
// ... and have the server send it to all clients
server.sendToAll(voice,socket);
} catch( EOFException ie ) {
// This doesn't need an error message
} catch( IOException ie ) {
// This does; tell the world!
ie.printStackTrace();
} finally {
// The connection is closed for one reason or another,
// so have the server dealing with it
server.removeConnection( socket );
package com.longshine.voice;
import java.io.*;
import java.net.*;
public class Client {
private String host="";
private String port="";
private Socket socket;
private DataOutputStream dout;
private DataInputStream din;
private Capture capture=null;
private Play play=null;
public Client(String host,String port) {
this.host=host;
this.port=port;
public void init()
try
socket = new Socket( host, Integer.parseInt(port));
din = new DataInputStream( socket.getInputStream() );
dout = new DataOutputStream( socket.getOutputStream());
capture=new Capture(dout);
play=new Play(din);
catch(Exception e)
e.printStackTrace();
public static void main(String[] args) {
Client client = new Client("172.18.220.176","5678");
client.init();
if(args[0].equalsIgnoreCase("say"))
client.capture.start();
if(args[0].equalsIgnoreCase("hear"))
client.play.start();
package com.longshine.voice;
import java.io.*;
import java.util.Vector;
import java.util.Enumeration;
import javax.sound.sampled.*;
import java.text.*;
import java.net.*;
public class Play implements Runnable {
SourceDataLine line;
Thread thread;
String errStr=null;
DataInputStream in=null;
AudioInputStream audioInputStream;
final int bufSize = 16384;
int duration=0;
public Play(DataInputStream in)
this.in=in;
public void start() {
errStr = null;
thread = new Thread(this);
thread.setName("Playback");
thread.start();
public void stop() {
thread = null;
private void shutDown(String message) {
if ((errStr = message) != null) {
System.err.println(errStr);
if (thread != null) {
thread = null;
public void createAudioInputStream() {
if (in != null ) {
try {
errStr = null;
java.io.BufferedInputStream oin = new java.io.BufferedInputStream(in);
audioInputStream = AudioSystem.getAudioInputStream(oin);
} catch (Exception ex) {
ex.printStackTrace();
} else {
public void run() {
// reload the file if loaded by file
if (in != null) {
// createAudioInputStream();
// make sure we have something to play
// if (audioInputStream == null) {
// shutDown("No loaded audio to play back");
// return;
// reset to the beginnning of the stream
// try {
// audioInputStream.reset();
// } catch (Exception e) {
// shutDown("Unable to reset the stream\n" + e);
// return;
// get an AudioInputStream of the desired format for playback
AudioFormat format = getFormat();
audioInputStream=new AudioInputStream(in, format, AudioSystem.NOT_SPECIFIED);
AudioInputStream playbackInputStream = AudioSystem.getAudioInputStream(format, audioInputStream);
if (playbackInputStream == null) {
shutDown("Unable to convert stream of format " + audioInputStream + " to format " + format);
return;
// define the required attributes for our line,
// and make sure a compatible line is supported.
DataLine.Info info = new DataLine.Info(SourceDataLine.class,
format);
if (!AudioSystem.isLineSupported(info)) {
shutDown("Line matching " + info + " not supported.");
return;
// get and open the source data line for playback.
try {
line = (SourceDataLine) AudioSystem.getLine(info);
line.open(format, bufSize);
} catch (LineUnavailableException ex) {
shutDown("Unable to open the line: " + ex);
return;
// play back the captured audio data
int frameSizeInBytes = format.getFrameSize();
int bufferLengthInFrames = line.getBufferSize() / 8;
int bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes;
byte[] data = new byte[bufferLengthInBytes];
int numBytesRead = 0;
// start the source data line
line.start();
while (thread != null) {
try {
if ((numBytesRead = playbackInputStream.read(data)) == -1) {
break;
int numBytesRemaining = numBytesRead;
while (numBytesRemaining > 0 ) {
numBytesRemaining -= line.write(data, 0, numBytesRemaining);
} catch (Exception e) {
shutDown("Error during playback: " + e);
break;
// we reached the end of the stream. let the data play out, then
// stop and close the line.
if (thread != null) {
line.drain();
line.stop();
line.close();
line = null;
shutDown(null);
public AudioFormat getFormat() {
AudioFormat.Encoding encoding = AudioFormat.Encoding.ULAW;
String encString = "linear";
float rate = Float.valueOf("44100").floatValue();
int sampleSize = 16;
String signedString = "signed";
boolean bigEndian = true;
int channels = 2;
if (encString.equals("linear")) {
if (signedString.equals("signed")) {
encoding = AudioFormat.Encoding.PCM_SIGNED;
} else {
encoding = AudioFormat.Encoding.PCM_UNSIGNED;
} else if (encString.equals("alaw")) {
encoding = AudioFormat.Encoding.ALAW;
return new AudioFormat(encoding, rate, sampleSize,
channels, (sampleSize/8)*channels, rate, bigEndian);
} // End class Playback
package com.longshine.voice;
import java.io.*;
import java.util.Vector;
import java.util.Enumeration;
import javax.sound.sampled.*;
import java.text.*;
import java.net.*;
public class Capture implements Runnable {
TargetDataLine line;
Thread thread;
String errStr=null;
DataOutputStream out=null;
AudioInputStream audioInputStream;
final int bufSize = 16384;
int duration=0;
public Capture(DataOutputStream out)
this.out=out;
public void start() {
errStr = null;
thread = new Thread(this);
thread.setName("Playback");
thread.start();
public void stop() {
thread = null;
private void shutDown(String message) {
if ((errStr = message) != null) {
System.out.println(errStr);
if (thread != null) {
thread = null;
public AudioFormat getFormat() {
AudioFormat.Encoding encoding = AudioFormat.Encoding.ULAW;
String encString = "linear";
float rate = Float.valueOf("44100").floatValue();
int sampleSize = 16;
String signedString = "signed";
boolean bigEndian = true;
int channels = 2;
if (encString.equals("linear")) {
if (signedString.equals("signed")) {
encoding = AudioFormat.Encoding.PCM_SIGNED;
} else {
encoding = AudioFormat.Encoding.PCM_UNSIGNED;
} else if (encString.equals("alaw")) {
encoding = AudioFormat.Encoding.ALAW;
return new AudioFormat(encoding, rate, sampleSize,
channels, (sampleSize/8)*channels, rate, bigEndian);
public void run() {
duration = 0;
audioInputStream = null;
// define the required attributes for our line,
// and make sure a compatible line is supported.
AudioFormat format = getFormat();
DataLine.Info info = new DataLine.Info(TargetDataLine.class,
format);
if (!AudioSystem.isLineSupported(info)) {
shutDown("Line matching " + info + " not supported.");
return;
// get and open the target data line for capture.
try {
line = (TargetDataLine) AudioSystem.getLine(info);
line.open(format, line.getBufferSize());
} catch (LineUnavailableException ex) {
shutDown("Unable to open the line: " + ex);
return;
} catch (SecurityException ex) {
shutDown(ex.toString());
return;
} catch (Exception ex) {
shutDown(ex.toString());
return;
// play back the captured audio data
int frameSizeInBytes = format.getFrameSize();
int bufferLengthInFrames = line.getBufferSize() / 8;
int bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes;
byte[] data = new byte[bufferLengthInBytes];
int numBytesRead;
line.start();
try
while (thread != null) {
if((numBytesRead = line.read(data, 0, bufferLengthInBytes)) == -1) {
break;
if(data.length>0)
out.write(data, 0, numBytesRead);
out.flush();
catch (Exception e)
e.printStackTrace();
// we reached the end of the stream. stop and close the line.
line.stop();
line.close();
line = null;
// stop and close the output stream
try {
out.flush();
out.close();
} catch (IOException ex) {
ex.printStackTrace();
} // End class Capture

After a few days work, I have completed the mian voice chat program. I know there are so many people like me that wants that. I post these program. i will complete gui work later. and there is a problem in the program. if the speaking one do not speak for a while, the listening client will hear noise. Can some one help me.
package com.longshine.voice;
import java.io.*;
import java.net.*;
import java.util.*;
public class Server
// The ServerSocket we'll use for accepting new connections
private ServerSocket ss;
// A mapping from sockets to DataOutputStreams. This will
// help us avoid having to create a DataOutputStream each time
// we want to write to a stream.
private Hashtable outputStreams = new Hashtable();
final int bufSize = 16384;
//current speak_man
private int speakman=-1;
// Constructor and while-accept loop all in one.
public Server( int port ) throws IOException {
// All we have to do is listen
listen( port );
private void listen( int port ) throws IOException {
// Create the ServerSocket
ss = new ServerSocket( port );
// Tell the world we're ready to go
System.out.println( "Listening on "+ss );
// Keep accepting connections forever
while (true) {
// Grab the next incoming connection
Socket s = ss.accept();
// Tell the world we've got it
System.out.println( "Connection from "+s );
// Create a DataOutputStream for writing data to the
// other side
DataOutputStream dout = new DataOutputStream( s.getOutputStream() );
// Save this stream so we don't need to make it again
outputStreams.put( s, dout );
// Create a new thread for this connection, and then forget
// about it
new VoiceServer( this, s );
// Get an enumeration of all the OutputStreams, one for each client
// connected to us
Enumeration getOutputStreams() {
return outputStreams.elements();
// Send a message to all clients (utility routine)
void sendToAll( byte[] voice ,Socket socket) {
// We synchronize on this because another thread might be
// calling removeConnection() and this would screw us up
// as we tried to walk through the list
synchronized( outputStreams ) {
// For each client ...
for (Enumeration e = outputStreams.keys(); e.hasMoreElements(); ) {
// ... get the output stream ...
Socket tmp=(Socket)e.nextElement();
if(!tmp.equals(socket))
try {
DataOutputStream dout = new DataOutputStream(tmp.getOutputStream());
// ... and send the message
dout.write(voice,0,44096);
dout.flush();
} catch( IOException ie ) { System.out.println( ie ); }
// Remove a socket, and it's corresponding output stream, from our
// list. This is usually called by a connection thread that has
// discovered that the connectin to the client is dead.
void removeConnection( Socket s ) {
// Synchronize so we don't mess up sendToAll() while it walks
// down the list of all output streamsa
synchronized( outputStreams ) {
// Tell the world
System.out.println( "Removing connection to "+s );
// Remove it from our hashtable/list
outputStreams.remove( s );
// Make sure it's closed
try {
s.close();
} catch( IOException ie ) {
System.out.println( "Error closing "+s );
ie.printStackTrace();
// Main routine
// Usage: java Server <port>
static public void main( String args[] ) throws Exception {
// Get the port # from the command line
int port = Integer.parseInt( args[0] );
// Create a Server object, which will automatically begin
// accepting connections.
new Server( port );
package com.longshine.voice;
import java.net.*;
import java.io.*;
import java.sql.*;
import java.io.*;
import java.net.*;
public class VoiceServer extends Thread
// The Server that spawned us
private Server server;
final int bufSize = 16384;
// The Socket connected to our client
private Socket socket;
// Constructor.
public VoiceServer( Server server, Socket socket ) {
// Save the parameters
this.server = server;
this.socket = socket;
// Start up the thread
start();
// This runs in a separate thread when start() is called in the
// constructor.
public void run() {
try {
// Create a DataInputStream for communication; the client
// is using a DataOutputStream to write to us
DataInputStream din = new DataInputStream( socket.getInputStream() );
byte[] voice=new byte[44096];
// Over and over, forever ...
while (true) {
// ... read the next message ...
// int bytes = din.read(voice,0,44096);
int bytes = din.read(voice);
// ... and have the server send it to all clients
server.sendToAll(voice,socket);
} catch( EOFException ie ) {
// This doesn't need an error message
} catch( IOException ie ) {
// This does; tell the world!
ie.printStackTrace();
} finally {
// The connection is closed for one reason or another,
// so have the server dealing with it
server.removeConnection( socket );
package com.longshine.voice;
import java.io.*;
import java.net.*;
public class Client {
private String host="";
private String port="";
private Socket socket;
private DataOutputStream dout;
private DataInputStream din;
private Capture capture=null;
private Play play=null;
public Client(String host,String port) {
this.host=host;
this.port=port;
public void init()
try
socket = new Socket( host, Integer.parseInt(port));
din = new DataInputStream( socket.getInputStream() );
dout = new DataOutputStream( socket.getOutputStream());
capture=new Capture(dout);
play=new Play(din);
catch(Exception e)
e.printStackTrace();
public static void main(String[] args) {
Client client = new Client("172.18.220.176","5678");
client.init();
if(args[0].equalsIgnoreCase("say"))
client.capture.start();
if(args[0].equalsIgnoreCase("hear"))
client.play.start();
package com.longshine.voice;
import java.io.*;
import java.util.Vector;
import java.util.Enumeration;
import javax.sound.sampled.*;
import java.text.*;
import java.net.*;
public class Play implements Runnable {
SourceDataLine line;
Thread thread;
String errStr=null;
DataInputStream in=null;
AudioInputStream audioInputStream;
final int bufSize = 16384;
int duration=0;
public Play(DataInputStream in)
this.in=in;
public void start() {
errStr = null;
thread = new Thread(this);
thread.setName("Playback");
thread.start();
public void stop() {
thread = null;
private void shutDown(String message) {
if ((errStr = message) != null) {
System.err.println(errStr);
if (thread != null) {
thread = null;
public void createAudioInputStream() {
if (in != null ) {
try {
errStr = null;
java.io.BufferedInputStream oin = new java.io.BufferedInputStream(in);
audioInputStream = AudioSystem.getAudioInputStream(oin);
} catch (Exception ex) {
ex.printStackTrace();
} else {
public void run() {
// reload the file if loaded by file
if (in != null) {
// createAudioInputStream();
// make sure we have something to play
// if (audioInputStream == null) {
// shutDown("No loaded audio to play back");
// return;
// reset to the beginnning of the stream
// try {
// audioInputStream.reset();
// } catch (Exception e) {
// shutDown("Unable to reset the stream\n" + e);
// return;
// get an AudioInputStream of the desired format for playback
AudioFormat format = getFormat();
audioInputStream=new AudioInputStream(in, format, AudioSystem.NOT_SPECIFIED);
AudioInputStream playbackInputStream = AudioSystem.getAudioInputStream(format, audioInputStream);
if (playbackInputStream == null) {
shutDown("Unable to convert stream of format " + audioInputStream + " to format " + format);
return;
// define the required attributes for our line,
// and make sure a compatible line is supported.
DataLine.Info info = new DataLine.Info(SourceDataLine.class,
format);
if (!AudioSystem.isLineSupported(info)) {
shutDown("Line matching " + info + " not supported.");
return;
// get and open the source data line for playback.
try {
line = (SourceDataLine) AudioSystem.getLine(info);
line.open(format, bufSize);
} catch (LineUnavailableException ex) {
shutDown("Unable to open the line: " + ex);
return;
// play back the captured audio data
int frameSizeInBytes = format.getFrameSize();
int bufferLengthInFrames = line.getBufferSize() / 8;
int bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes;
byte[] data = new byte[bufferLengthInBytes];
int numBytesRead = 0;
// start the source data line
line.start();
while (thread != null) {
try {
if ((numBytesRead = playbackInputStream.read(data)) == -1) {
break;
int numBytesRemaining = numBytesRead;
while (numBytesRemaining > 0 ) {
numBytesRemaining -= line.write(data, 0, numBytesRemaining);
} catch (Exception e) {
shutDown("Error during playback: " + e);
break;
// we reached the end of the stream. let the data play out, then
// stop and close the line.
if (thread != null) {
line.drain();
line.stop();
line.close();
line = null;
shutDown(null);
public AudioFormat getFormat() {
AudioFormat.Encoding encoding = AudioFormat.Encoding.ULAW;
String encString = "linear";
float rate = Float.valueOf("44100").floatValue();
int sampleSize = 16;
String signedString = "signed";
boolean bigEndian = true;
int channels = 2;
if (encString.equals("linear")) {
if (signedString.equals("signed")) {
encoding = AudioFormat.Encoding.PCM_SIGNED;
} else {
encoding = AudioFormat.Encoding.PCM_UNSIGNED;
} else if (encString.equals("alaw")) {
encoding = AudioFormat.Encoding.ALAW;
return new AudioFormat(encoding, rate, sampleSize,
channels, (sampleSize/8)*channels, rate, bigEndian);
} // End class Playback
package com.longshine.voice;
import java.io.*;
import java.util.Vector;
import java.util.Enumeration;
import javax.sound.sampled.*;
import java.text.*;
import java.net.*;
public class Capture implements Runnable {
TargetDataLine line;
Thread thread;
String errStr=null;
DataOutputStream out=null;
AudioInputStream audioInputStream;
final int bufSize = 16384;
int duration=0;
public Capture(DataOutputStream out)
this.out=out;
public void start() {
errStr = null;
thread = new Thread(this);
thread.setName("Playback");
thread.start();
public void stop() {
thread = null;
private void shutDown(String message) {
if ((errStr = message) != null) {
System.out.println(errStr);
if (thread != null) {
thread = null;
public AudioFormat getFormat() {
AudioFormat.Encoding encoding = AudioFormat.Encoding.ULAW;
String encString = "linear";
float rate = Float.valueOf("44100").floatValue();
int sampleSize = 16;
String signedString = "signed";
boolean bigEndian = true;
int channels = 2;
if (encString.equals("linear")) {
if (signedString.equals("signed")) {
encoding = AudioFormat.Encoding.PCM_SIGNED;
} else {
encoding = AudioFormat.Encoding.PCM_UNSIGNED;
} else if (encString.equals("alaw")) {
encoding = AudioFormat.Encoding.ALAW;
return new AudioFormat(encoding, rate, sampleSize,
channels, (sampleSize/8)*channels, rate, bigEndian);
public void run() {
duration = 0;
audioInputStream = null;
// define the required attributes for our line,
// and make sure a compatible line is supported.
AudioFormat format = getFormat();
DataLine.Info info = new DataLine.Info(TargetDataLine.class,
format);
if (!AudioSystem.isLineSupported(info)) {
shutDown("Line matching " + info + " not supported.");
return;
// get and open the target data line for capture.
try {
line = (TargetDataLine) AudioSystem.getLine(info);
line.open(format, line.getBufferSize());
} catch (LineUnavailableException ex) {
shutDown("Unable to open the line: " + ex);
return;
} catch (SecurityException ex) {
shutDown(ex.toString());
return;
} catch (Exception ex) {
shutDown(ex.toString());
return;
// play back the captured audio data
int frameSizeInBytes = format.getFrameSize();
int bufferLengthInFrames = line.getBufferSize() / 8;
int bufferLengthInBytes = bufferLengthInFrames * frameSizeInBytes;
byte[] data = new byte[bufferLengthInBytes];
int numBytesRead;
line.start();
try
while (thread != null) {
if((numBytesRead = line.read(data, 0, bufferLengthInBytes)) == -1) {
break;
if(data.length>0)
out.write(data, 0, numBytesRead);
out.flush();
catch (Exception e)
e.printStackTrace();
// we reached the end of the stream. stop and close the line.
line.stop();
line.close();
line = null;
// stop and close the output stream
try {
out.flush();
out.close();
} catch (IOException ex) {
ex.printStackTrace();
} // End class Capture

3GS Voice Chat Application

Hey I'm looking for a specific voice chat application. I would like an app that would allow multiple users to join a chat room and talk via voice with each other on the iphone. I would like this app to also allow users on a PC to join into this voice chat with iphone users. I would also like to make the chat room private so only certain users can join the chat room. Is there an existing application that accomplishes this? I have searched around the internet and haven't found anything yet. Thanks.

Stebalien wrote:Cool! However, the key exchange system looks a little unwieldy; personally, I would give everyone a permanent "identity" key (preferably allow the user to a GPG key) and then use the socialist millionaire's protocol (SMP) to exchange these keys. Once the keys have been exchanged, they can be used to negotiate shared session keys. This way, once you talk to someone once, you don't need to keep manually sharing a key with them. The OTR library (libotr) does this very well but I don't know how usable it would be for this project (it's intended for layering encryption over existing IM protocols).
Really thanx for your interest, i refer to the main developer . Be free to come in #seren on irc.freenode.net , to talk directly with him and the community!

Can't seem to enable voice chat anymore

hello folks
i just upgraded to an audigy but now when my friend and i try to initiate voice chat through x-fire and msn we can't hear each other at all, where we had no problems before...
i've got a p4 3.6ghz with gb of ram and i've disabled my onboard sound card in the bios.
i've also tested my mic and speakers through the audio tab in control panel in xp.
any ideas?

actionthom,
In the Creative Mixer, in the REC panel, make sure you have Mircrophone selected. Move the slider to your volume preference. Click on the red "+" at the top and select 20dB boost. If you want your own speakers to play what you say into the mic, then in the Source panel, un-mute Microphone. Adjust that slider to your preference. It's usually a good idea to mute any other sources you don't want.
Also, in Control Panel, Sounds and MultiMedia (or something similar for your system), Audio tab, make sure your Audigy is selected as the preferred device for Playback, Recording, etc. If you have a "Use only preferred devices" box, check it.Message Edited by Katman on 0-30-2006 07:4 PM

Problem in audio formate voice chatting applet

hi
i've just finished making voice chatting project but the voice sometimes sent with big noice and i can't her the user in the other side
i make it as applet opend from the web and the connection is successfully established , i use cloudegarden in my project
the audio formate i use pcm 44100 hz 16 bit sterio in the client
and 11025 hz 16 bit sterio in the server , i was have to make this formate because the others not working will with me(it throw exception)
thanks for ur concern

Hello,
could you please send me the source code.Even i'm working on a similar project. My id is [email protected]
Thanks
PN

Sound, voice chat, yahoo messenger and VPC 6

Okay perhaps off topic..perhaps not......how do I get sound to work in Yahoo messenger v 7 w/ voice chat via VPC 6 on an AL 15 Powerbook???
And does the AL 15 have a built in Microphone??

Does the microphone work while running VPC?
I don't know, but I think you can easily check. While you're running VPC, go into System Preferences > Sound > Input. (You can access System Preferences from the Apple menu in the upper left-hand corner of your screen. I'm assuming that you can do this while running VPC. If I'm wrong on this, please stop reading this worthless post. ;-))
Look at the meter that reads "input level," just above the slider that reads "input volume." If there's any significant ambient noise where you are, or if you speak at a decent volume out loud (it doesn't even have to be near the mic, which is located beneath the left speak grille), you should see the "input level" fluctuate if the mic's working properly. (The default setting for the "input volume" is midway on the slider. If it's all the way to the left, the mic will not pick up any sounds.)

USB webcam microphone not working with Starcraft 2 voice chat

=USB webcam microphone not working with Starcraft 2 voice chat?Windows 7, X-fi Fatalty Pro
I have a webcam with ?a built in microphone (Ps3 eye). ?It is connected by USB. ?The drivers are the CL-Eye drivers; a third party driver set since Sony does not directly support the eye for PC.
in the windows audio device management, the microphone appears as normal and is set as the default device. ?I can use the windows sound recorder to record me speaking just fine. ?However if I use any other applications it doesn't seem to work at all. ?I can select the device as the default recording device in Starcraft 2 as well as Teamspeak 3 but no sound is detected. ?The USB microphone does not show up as a selectable device in recording options in my Creative Control Panel. ?Disabling the default creative microphone does nothing.
I think the problem is in that windows can directly detect the microphone and so software that uses the windows audio device manager works fine, but anything that talks directly with my sound card software does not properly detect the microphone. ?Basically, I can select the device as a default device but it does not work.
Any thoughts on this or am I SOL and have to find myself a shiny new headset?

I had the same problem. You need to check the device index of your USB mic.
In my case. I'm on a Mac OSX 10.6 system. I had four devices cataloged. With the last one being the USB mic.
Then set like so in your AS code audioPub.microphoneManager.micIndex = 3;
Remember, that the indexing is 0 based.
The sound framework make the assumption that the index is 0.
Hope that helps.

Duriong Voice Chat Voice is not Receiving from Creative Sound Card but going correct

Hi!
I have recently faced a problem in my Creative Sounce Card. When i play a sound, no? sound is coming from sound card, No?error message is coming but monitor screen is displaying the sound animations in?Windows media player. I have also tested my speakers & connections and no problem found in it. I also changed the Creative Sound Card Software's settings to default but all in vain. Besides when i?unchecked?the check box ("Only Show Digital Sound") in the Creative Sound Card Software, the analog music is being received, but it is only music without any human voice. The same problem is during voice chat.
Plz help me in this regard.
Thanks in advance.

There is no confusion (anymore) I'm just trying to get the word out that nobody wants to supprt these OEM cards. Not you and not Dell. Does Dell even have the rights to redistibute the apps to work with there versions of your cards? Card works, Drivers Work, No ap
ps.
.see my delima? Just a heads up to anyone else with this problem. I've looked to no avail for a updated set of apps for this OEM card. Really kinda anoyed by this. I mean why can't creative support there own card. I know dell bought it, but it is creative and you made money from it support it. Seems pretty cut and dried to me. Digrunteld Axe

Whiteboard-Voice Chat archiving

Hi,
I am developing an application which uses 2 applets in a single jsp page one as a whiteboard where we can draw and another a voice chat cum text chat application.
I need to save both the drwaing and the chat content in the database and retreive and show it to user which contains the drawing and the voice chat content in sync.
How can this be done?Please advice me.
Thanks
Ram

Hi,
Creator 2.0 does not have support to create Applet. You could use free tools like netbeans (http://www.netbeans.org) to create the applet and then import it in to Creator.
RK.

Voice chat on imac

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