problem in playing wav file

[sridhar_ratna]

Hi all,
i'm using nokia UI API Sound class to play simple wav file. when i try to run its giving exception as follows.

Nokia Series 60 MIDP SDK Beta 0.1: java.lang.IllegalStateException
Nokia Series 60 MIDP SDK Beta 0.1: at com.nokia.mid.sound.Sound.play(+54)
Nokia Series 60 MIDP SDK Beta 0.1: at Player.playSound(+134)
Nokia Series 60 MIDP SDK Beta 0.1: at Player.run(+16)


here i am pasting my program. Plz help me in solving my problem. Plz help me.

import java.lang.*;
import java.io.*;
import com.nokia.mid.sound.*;
import javax.microedition.io.*;

public class Player extends Thread implements SoundListener
{
private Sound soundWav = null;
private String sMethod;
private InputStream is=null;
private Thread t = null;
byte [] b;

public Player(String method){
sMethod=method;
}

public void run()
{
if(sMethod.equals("playSound"))
{
playSound();
}

}


public void playSound()
{
try
{
HttpConnection c = (HttpConnection)Connector.open("http://203.196.161.72/Camera1a_2_8kHz.wav");
is = c.openInputStream();
b = new byte [(int)c.getLength()];
is.read(b);
System.out.println("array len is :"+b.length);
soundWav = new Sound(b, Sound.FORMAT_WAV);
System.out.println("after instance");
soundWav.init(b, Sound.FORMAT_WAV);
System.out.println("after initialization");
soundWav.setSoundListener(this);
System.out.println("after setlistener");
soundWav.play(3);

}
catch (Exception e)
{
System.out.println("Exception");
e.printStackTrace();
}
finally
{
try
{
if(is!= null)
{
is.close();
}
}
catch(Exception ex)
{
ex.printStackTrace();
}
}

}

public void soundStateChanged(Sound sound, int event)
{

System.out.println("in soundStateChanged");

if (event == Sound.SOUND_PLAYING)
{
System.out.println("SoundWav begin playing");
}else if (event == Sound.SOUND_STOPPED)
{
System.out.println("SoundWav end playing");
}else if(event == Sound.SOUND_UNINITIALIZED)
System.out.println("uninitialized");


}
}

thanks in advance,

Sridhar Reddy

[kauk]

Hi dear
Perhaps problem owing to your wav file so please try another wav file .

[raydac]

a few years ago I wrote a universal sound player to use it in games for different devices, take a look at it may be it will help you
http://igormaznitsa.com/projects/jcp/SoundManager.java

[grahamhughes]

    HttpConnection c = (HttpConnection)Connector.open("http://203.196.161.72/Camera1a_2_8kHz.wav");
    is = c.openInputStream();
    b = new byte [(int)c.getLength()];
    is.read(b);

What device are you using?

Your problem may be your use of InputStream.read(byte[]). This method does not always read the number of bytes you expect. You need to check the return value to see the number of bytes actually read. For example:

byte[] b = new byte [(int)c.getLength()];
int soFar = 0;
while (soFar < b.length) {
    soFar += in.read(b, soFar, b.length - soFar);
}

Cheers,
Graham.