text to speech conversioin using freeTTs

[yonas]

package ourproject;

import javax.speech.Central;
import javax.speech.synthesis.*;
import java.util.Locale;

public class SPeech {
public static void main(String args[]) {
try {
// Create a synthesizer for English
Synthesizer synth = Central.createSynthesizer(
new SynthesizerModeDesc(Locale.ENGLISH));

// Get it ready to speak
synth.allocate();
synth.resume();

// Speak the "Hello world" string
synth.speakPlainText("Hello, world!", null);

// Wait till speaking is done
synth.waitEngineState(Synthesizer.QUEUE_EMPTY);

// Clean up
synth.deallocate();
} catch (Exception e) {
e.printStackTrace();
}
}
}

[Fubarable]

package ourproject;

import javax.speech.Central;
import javax.speech.synthesis.*;
import java.util.Locale;

public class SPeech {
    public static void main(String args[]) {
		try {
			// Create a synthesizer for English
			Synthesizer synth = Central.createSynthesizer(
				new SynthesizerModeDesc(Locale.ENGLISH));

			// Get it ready to speak
			synth.allocate();
			synth.resume();

			// Speak the "Hello world" string
			synth.speakPlainText("Hello, world!", null);

			// Wait till speaking is done
			synth.waitEngineState(Synthesizer.QUEUE_EMPTY);

			// Clean up
			synth.deallocate();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}    
}

Do you have a question?

[yonas]

I've got a very annoying problem. Basically whenever I compile the above code using javac and then try to run the CLASS file it generates, it tells me there's a null pointer exception on line 9 Synth.Allocate. I've searched all over the internet to no avail. The program is meant to speak Hello World to me. I've got Jsapi, all the jar files are in \jre6\lib\ext.

I've got speech.properties in both these locations, C:\Users\Myusername : C:\Program Files\Java\jre6\lib

I've searched the internet for hours and there are loads of posts about it, but none of them explain how to fix it. Please if you know how to fix it and get rid of this null pointer exception at line 9 could you tell me I would be so grateful!

Oh ye by the way I purposely put the spaces in the code to make it easier to read

[DarrylBurke]

it tells me there's a null pointer exception on line 9 Synth.Allocate.

The API for Central says

Returns:
a Synthesizer matching the required properties or null if none is available

Evidently synth is null.

I've searched the internet for hours and there are loads of posts about it, but none of them explain how to fix it.

This page has a step-by-step:
Setup java speech jsapi using FreeTTS | Ryan-H.com

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