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Thursday, August 27, 2020

Getting started with Chatbot using java and response in text to speech -- Java simple chatbot and text to speech

This will explain you about , how we can write simple chatbot using java and read the bot response into speech 

 Step 1: Download sample program-ab from the below archive folder Program-ab 

 Step 2: Unzip the downloaded folder. 

 Step 3: Create java maven project using any IDE or console application

 Step 4: Copy Ab.jar (Which is there in the unzipped folder lib in step 2) add to the classpath 

 Step 5: Copy bots folder (which is available in the unzipped folder) it has all the aiml files, which bot act upon our request and give the response

 Step 6: Now we need to give bot response in speech

 Step 7: Download freetss from the given link FREETTS 

 Step 8: Unzip the downloaded folder and go to \freetts-1.2.2-bin\freetts-1.2\lib folder 

 Step 9: Run the jsapi.exe file- It will generate multiple jars

 Step 10: copy that jars and place it in the classpath of the java project 

 Step 11: Once above steps completed then, we can write simple java program as follows
package com.siva;

import java.io.File;
import java.util.Locale;
import java.util.Scanner;

import javax.speech.Central;
import javax.speech.synthesis.Synthesizer;
import javax.speech.synthesis.SynthesizerModeDesc;

import org.alicebot.ab.AB;
import org.alicebot.ab.Bot;
import org.alicebot.ab.Chat;
import org.alicebot.ab.MagicBooleans;
import org.alicebot.ab.utils.IOUtils;

public class TestChatbot {

    private static final boolean TRACE_MODE = false;
    static String botName = "super";
 
    public static void main(String[] args) {
        try {
 
            String aimlResourcesPath = getResourcesPath();
            System.out.println(aimlResourcesPath);
            MagicBooleans.trace_mode = TRACE_MODE;
            Bot bot = new Bot("super", aimlResourcesPath);
            Chat chatSession = new Chat(bot);
	        AB.ab(bot);
	        Scanner sc=new Scanner(System.in);

	        String request = "Hai";
	        do{

	        request = IOUtils.readInputTextLine();
	        String response = chatSession.multisentenceRespond(request); 
	        
	        
	        
	            // Set property as Kevin Dictionary 
	            System.setProperty( 
	                "freetts.voices", 
	                "com.sun.speech.freetts.en.us"
	                    + ".cmu_us_kal.KevinVoiceDirectory"); 
	  
	            // Register Engine 
	            Central.registerEngineCentral( 
	                "com.sun.speech.freetts"
	                + ".jsapi.FreeTTSEngineCentral"); 
	  
	            // Create a Synthesizer 
	            Synthesizer synthesizer 
	                = Central.createSynthesizer( 
	                    new SynthesizerModeDesc(Locale.US)); 
	  
	            // Allocate synthesizer 
	            synthesizer.allocate(); 
	  
	            // Resume Synthesizer 
	            synthesizer.resume(); 
	  
	            // Speaks the given text 
	            // until the queue is empty. 
	            synthesizer.speakPlainText( 
	            		response, null); 
	            synthesizer.waitEngineState( 
	                Synthesizer.QUEUE_EMPTY); 
	  
	        System.out.println(response); 
	        }while(!request.equals("exit"));

 
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 
    private static String getResourcesPath() {
        File currDir = new File(".");
        String path = currDir.getAbsolutePath();
        path = path.substring(0, path.length() - 2);
        System.out.println(path);
        String resourcesPath = path + File.separator + "src" 
        + File.separator + "main" + File.separator + "resources";
        return resourcesPath;
    }
}


Step 12: Once code completed , then run the java program , type the input like Hai, hello and date, there are so many QA mentioned in imal files. and we can also write our own aiml file, for reference, you can verify under boats/aiml folder 

Step 13: output will print in console and it will read the boat response.. 

 Step 14: Out put will be like below image. 


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