Synthesizer.java

package com.jaivox.synthesizer.freetts;
import java.util.*;
import javax.sound.sampled.*;

import com.sun.speech.freetts.Voice;
import com.sun.speech.freetts.VoiceManager;
import com.sun.speech.freetts.audio.JavaClipAudioPlayer;

/**
 * The Synthesizer freetts class naturally needs the FreeTts Java library.
 * We have tested with version 1.2.2. Note that classpath should explicitly
 * contain the path to the actual jar file. For example
 * /home/you/yourfiles/freetts/freetts-1.2.2/lib/freetts.jar
 * where /home/you/yourfiles should be changed appropriately for
 * the location of the freetts files in your system.
 */

public class Synthesizer {

	VoiceManager tts;
	Voice speaker;

/**
 * Create a Synthesizer using information in a Properties class and
 * information about a base directory. This form is included only for
 * compatibility with other similar constructors in other packages.
@param base
@param kv
 */
	public Synthesizer (String base, Properties kv) {
		System.out.println ("Synthesizer created");
		initializeTts ();
	}

/**
 * Create the default synthesizer. This is the form that is most often
 * used to construct the Synthesizer class.
 */

	public Synthesizer () {
		System.out.println ("Default synthesizer created");
		initializeTts ();
	}

/**
 * Initialize the FreeTts text to speech system. This requires that
 * the path to freetts.jar (which contains other classes) should be part
 * of the classpath.
 */

	void initializeTts () {
		tts = VoiceManager.getInstance ();
        Voice [] voices = tts.getVoices ();
		if (voices == null || voices.length == 0) {
			System.out.println ("No voices available for freetts");
			System.exit (0);
		}
		System.out.println ("Available voices:");
        for (int i = 0; i < voices.length; i++) {
			String voice = voices [i].getName () + " " + voices [i].getDomain ();
			System.out.println (voice);
 		}

		speaker = tts.getVoice ("kevin16");
		speaker.allocate ();
	}


/**
 * speak the given message
@param message
 */
	public boolean speak (String message) {
		try {
			System.out.println ("Speaking: "+message);
			speaker.speak (message);
			return true;
		}
		catch (Exception e) {
			e.printStackTrace ();
			return false;
		}
	}
};