SpeechInput.java

/*
   Copyright 2010-2012 by Bits and Pixels, Inc.

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
*/

package com.jaivox.recognizer.sphinx;

import java.io.*;

import com.jaivox.util.Log;

import edu.cmu.sphinx.frontend.util.Microphone;
import edu.cmu.sphinx.recognizer.Recognizer;
import edu.cmu.sphinx.result.Result;
import edu.cmu.sphinx.util.props.ConfigurationManager;
/**
//Adapted from Sphinx's HelloNGram application
//copyright notice for HelloNGram appears below
* Copyright 1999-2004 Carnegie Mellon University.
* Portions Copyright 2004 Sun Microsystems, Inc.
* Portions Copyright 2004 Mitsubishi Electric Research Laboratories.
* All Rights Reserved.  Use is subject to license terms.
*
* See the file "license.terms" for information on usage and
* redistribution of this file, and for a DISCLAIMER OF ALL
* WARRANTIES.
*
 * HelloNGram is a simple demo built using Sphinx-4.
 * This version accepts speech based on a language model developed from
 * questions created in another jaivox module.
 * This version wraps a server that is then used for communication
 * with other agents.
*/

public class SpeechInput {

	String work1 = "send sphinx_0 {action: interpret, from: ";
	String work2 = ", to: ";
	String work3 = ", message: ";

/**
 * Initialize the sphinx program that handles speech recognition
@param server
@param configfile	xml configuration file describing the sphinx configuration
 */

    public SpeechInput (SphinxServer server, String inter, 
    		ConfigurationManager cm) {
//    		String configfile) {
//        ConfigurationManager cm;

        // cm = new ConfigurationManager(SpeechInput.class.getResource("speechinput.config.xml"));
        // cm = new ConfigurationManager(SpeechInput.class.getResource(configfile));
       // allocate the recognizer
        System.out.println("Loading...");
        Recognizer recognizer = (Recognizer) cm.lookup("recognizer");
        recognizer.allocate();

        // start the microphone or exit if the programm if this is not possible
        Microphone microphone = (Microphone) cm.lookup("microphone");
        if (!microphone.startRecording()) {
            System.out.println("Cannot start microphone.");
            recognizer.deallocate();
            System.exit(1);
        }

        printInstructions();

        // loop the recognition until the programm exits.
        while (true) {
            System.out.println("Start speaking. Press Ctrl-C to quit.\n");

            Result result = recognizer.recognize();

            if (result != null) {
                String resultText = result.getBestResultNoFiller();
                System.out.println("You said: " + resultText + '\n');
                String name = server.getServerId ();
                String message = work1 + name + work2 + inter + work3 +
                	"\"" + resultText +"\"}";
                server.execute (message);
                try {
                	Thread.sleep (4000);
                }
                catch (Exception e) {
                	System.out.println (e.toString ());
                	break;
                }
            } else {
                System.out.println("I can't hear what you said.\n");
            }
        }
    }

   /** Prints out what to say for this demo. */
   private static void printInstructions() {
       System.out.println ("Sample sentences: are in q.text\n");
		try {
			BufferedReader in = new BufferedReader (new FileReader ("q.text"));
			String line;
			while ((line = in.readLine ()) != null) {
				int toss = (int)(Math.random ()*100.0);
				if (toss > 85) System.out.println (line);
			}
			in.close ();
		}
		catch (Exception e) {
			e.printStackTrace ();
		}
   }
}