[Jcaptcha-users] Please help me to get only one word/number from SoundCaptcha

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Hi ,
 I am sorry for late reply.I was on vacation and in
between i was sick too.
I tried to implement soundcaptcha.Its working fine.
But the problem is that i am hearing more than one
word/number.I would like to get only one word.
For that i tried to change the rate value of
FreeTTSSoundConfigurator at Engine.Still i am facing
the same problem
Please find the code below.

1.SimpleSoundCaptchaServlet
2.MySoundCaptchaService
3.CKSpellerSoundCaptchaEngine
4.CKSimpleListSoundCaptchaEngine

When i use predefined engines like
SimpleListSoundCaptchaEngine,SpellerSoundCaptchaEngine.MySoundCaptchaService(line
no 17 instead of
CKSimpleListSoundCaptchaEngine) it works.But it gives
more than one word/number.

I would like to get only one word/number.
For that i copied SpellerSoundCaptchaEngine and 
SimpleListSoundCaptchaEngine and saved as
CKSpellerSoundCaptchaEngine and
CKSimpleListSoundCaptchaEngine.Changed the value of
rate(number of words per minute).
It compiles.But when i try to acces
CKSimpleListSoundCaptchaEngine or
CKSpellerSoundCaptchaEngine,it wont display wav file.

I would like to hear only one word/number.
Can you please tell me how can i do that.

The other problem is when access my server from any
other client. It displays the wav file .But the sound
is played at server.I hope the problem is at servlet
code.Can you please tell me what is the wrong in that
servlet.

My Files are::
===================================================
package org.sound.captcha;

import
com.octo.captcha.service.CaptchaServiceException;
import com.octo.captcha.sound.SoundCaptcha;
import javax.servlet.*;
import javax.servlet.http.*;
import java.awt.image.BufferedImage;

import java.io.File;
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;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.Map;
import javax.imageio.ImageIO;

public class SimpleSoundCaptchaServlet extends
HttpServlet
{

  protected void doGet( HttpServletRequest request,
HttpServletResponse response ) throws
ServletException, IOException
  {
   final int EXTERNAL_BUFFER_SIZE = 524288; // 128Kb
   byte[] abData = new byte[EXTERNAL_BUFFER_SIZE];
	int nBytesRead = 0;
	int nBytesWritten = 0;

    if ( request.getQueryString()!=null )
    {
      response.sendError(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "GET
request should have no query string." );
      return;
    }

    try
    {
      String captchaId = request.getSession().getId();

	  AudioInputStream thechallenge =
MySoundCaptchaService.getInstance().getService().getSoundChallengeForID(captchaId,request.getLocale());

		AudioFormat audioFormat = thechallenge.getFormat();
		SourceDataLine line = null;
		try
		{
			line = (SourceDataLine) AudioSystem.getLine(new
DataLine.Info(SourceDataLine.class, audioFormat));
		    line.open(audioFormat);
		    line.start();
		}
		catch (LineUnavailableException e)
		{
			e.printStackTrace();
		}

		while (nBytesRead != -1)
		{
			try
			{
				nBytesRead = thechallenge.read(abData, 0,
abData.length);
			    System.out.println( "while::nBytesRead::"
+nBytesRead);
			}
			catch (IOException e)
			{
				e.printStackTrace();		
			}
			if (nBytesRead >= 0)
			{
				nBytesWritten = line.write(abData, 0, nBytesRead);
		   }
		}

     // Clear any existing flag.
      request.getSession().removeAttribute(
"PassedCaptcha" );
    }
    catch( CaptchaServiceException cse )
    {
       System.out.println( "CaptchaServiceException -
" + cse.getMessage() );
       response.sendError(
HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "Problem
generating captcha image." );
       return;
    }

    // Set appropriate http headers.
    response.setHeader( "Cache-Control", "no-store" );
    response.setHeader( "Pragma", "no-cache" );
    response.setDateHeader( "Expires", 0 );
    response.setContentType("audio/x-wav"); 

    // Write the wav to the client.
    ServletOutputStream outStream =
response.getOutputStream();
	outStream.write(abData);
    outStream.flush();
    outStream.close();
  }

  protected void doPost( HttpServletRequest request,
HttpServletResponse response ) throws
ServletException, IOException
  {
	 // doGet(request, response);
  		Map paramMap = request.getParameterMap();
		if ( paramMap.isEmpty() )
		{
			System.out.println( "[CKCaptch] ImageCaptchaServlet
:: Post method not allowed without parameters.");
			return;
		}
		String[] arr1 = (String[])paramMap.get(
"hidCaptchaID" );
		String[] arr2 = (String[])paramMap.get(
"inCaptchaChars" );
		if ( arr1==null || arr2==null  )
		{
			System.out.println( "[CKCaptch] ImageCaptchaServlet
:: Expected parameters were not found.");
			return;
		}

		String sessId = request.getSession().getId();
		String incomingCaptchaId = arr1.length>0 ? arr1[0] :
"";
		String inputChars = arr2.length>0 ? arr2[0] : "";

		// Check validity and consistency of the data.
		if ( sessId==null || incomingCaptchaId==null ||
!sessId.equals(incomingCaptchaId) )
		{
			System.out.println( "[CKCaptch] ImageCaptchaServlet
:: Browser must support session cookies.");
			return;
	    }

		// Validate whether input from user is correct.
		boolean passedCaptchaTest = validateCaptcha(
incomingCaptchaId, inputChars );

		// Set flag into session.
		request.getSession().setAttribute( "PassedCaptcha",
new Boolean(passedCaptchaTest) );

		// Forward request to results page.
		RequestDispatcher rd =
getServletContext().getRequestDispatcher(
"/results.jsp" );
		rd.forward( request, response );
	 }

	 private boolean validateCaptcha( String captchaId,
String inputChars )
	 {
	    try
	    {
		      return
MySoundCaptchaService.getInstance().getService().validateResponseForID(
captchaId, inputChars );
	    }
	    catch( CaptchaServiceException cse )
	    {
			System.err.println( "[CKCaptch] ImageCaptchaServlet
:: validateCaptcha :: CaptchaServiceException :: "
+cse.getMessage());
		}
		return false;
	 } 
}
===================================================
package org.sound.captcha;

import
com.octo.captcha.service.sound.SoundCaptchaService; 
import
com.octo.captcha.service.sound.DefaultManageableSoundCaptchaService;

import
com.octo.captcha.engine.sound.gimpy.SimpleListSoundCaptchaEngine;
import
com.octo.captcha.engine.sound.speller.SpellerSoundCaptchaEngine;
import
org.sound.captcha.CKSimpleListSoundCaptchaEngine;
import org.sound.captcha.CKSpellerSoundCaptchaEngine;

public class MySoundCaptchaService 
{ 
	private SoundCaptchaService service;
	private static MySoundCaptchaService instance = new
MySoundCaptchaService();  
	private MySoundCaptchaService()
	{
		DefaultManageableSoundCaptchaService serv = new
DefaultManageableSoundCaptchaService();

serv.setCaptchaEngineClass(CKSimpleListSoundCaptchaEngine.class.getName());
		service = serv;
	}

	public static MySoundCaptchaService getInstance()
	{
		return instance;
	}

	public SoundCaptchaService getService()
	{
		return service;
	}
} 
===================================================
package org.sound.captcha;

import
com.octo.captcha.component.sound.soundconfigurator.FreeTTSSoundConfigurator;
import
com.octo.captcha.component.sound.soundconfigurator.SoundConfigurator;
import
com.octo.captcha.component.sound.wordtosound.FreeTTSWordToSound;
import
com.octo.captcha.engine.sound.ListSoundCaptchaEngine;
import com.octo.captcha.sound.gimpy.GimpySoundFactory;

/**
 * <p>Description: simple gimpy sound engine </p>
 *
 * @author Benoit Doumas
 * @version 1.0
 */
public class CKSimpleListSoundCaptchaEngine
        extends ListSoundCaptchaEngine {

    protected void buildInitialFactories() {

com.octo.captcha.component.word.wordgenerator.WordGenerator
words = new
com.octo.captcha.component.word.wordgenerator.DictionaryWordGenerator(
                new
com.octo.captcha.component.word.FileDictionary("toddlist"));

        SoundConfigurator configurator = new
FreeTTSSoundConfigurator("kevin16",

"com.sun.speech.freetts.en.us.cmu_us_kal.KevinVoiceDirectory",1.0f,100,1);
        FreeTTSWordToSound wordToSound = new
FreeTTSWordToSound(configurator, 4, 6);

        this.addFactory(new GimpySoundFactory(words,
wordToSound));
    }

}
===================================================
/*
 * JCaptcha, the open source java framework for
captcha definition and integration
 * Copyright (c)  2007 jcaptcha.net. All Rights
Reserved.
 * See the LICENSE.txt file distributed with this
package.
 */

/*
 * jcaptcha, the open source java framework for
captcha definition and integration
 * copyright (c)  2007 jcaptcha.net. All Rights
Reserved.
 * See the LICENSE.txt file distributed with this
package.
 */

/*
 * jcaptcha, the open source java framework for
captcha definition and integration
 * copyright (c)  2007 jcaptcha.net. All Rights
Reserved.
 * See the LICENSE.txt file distributed with this
package.
 */
package org.sound.captcha;

import
com.octo.captcha.component.sound.soundconfigurator.FreeTTSSoundConfigurator;
import
com.octo.captcha.component.sound.soundconfigurator.SoundConfigurator;
import
com.octo.captcha.component.sound.wordtosound.FreeTTSWordToSound;
import
com.octo.captcha.component.word.worddecorator.SpellerWordDecorator;
import
com.octo.captcha.engine.sound.ListSoundCaptchaEngine;
import
com.octo.captcha.sound.speller.SpellerSoundFactory;

/**
 * <p/>
 * Engine to generate a SpellerSound captcha. This
captcha provide a sound that is the spelling of a word
</p>
 *
 * @author Benoit Doumas
 * @version 1.0
 */
public class CKSpellerSoundCaptchaEngine extends
ListSoundCaptchaEngine {

    /**
     * @see
com.octo.captcha.engine.sound.ListSoundCaptchaEngine#buildInitialFactories()
     */
    protected void buildInitialFactories() {

com.octo.captcha.component.word.wordgenerator.WordGenerator
words =
                new
com.octo.captcha.component.word.wordgenerator.RandomWordGenerator("0123456789");

        SoundConfigurator configurator = new
FreeTTSSoundConfigurator("kevin16",

"com.sun.speech.freetts.en.us.cmu_us_kal.KevinVoiceDirectory",
1.0f, 100, 1);
        FreeTTSWordToSound wordToSound = new
FreeTTSWordToSound(configurator, 3, 5);

        SpellerWordDecorator decorator = new
SpellerWordDecorator(", ");
        this.addFactory(new SpellerSoundFactory(words,
wordToSound, decorator));

    }

}
===================================================

Thanks & Regards,
Sivamma.

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