Page 170 - The Definitive Guide to Building Java Robots

Preston_5564C05.fm Page 151 Tuesday, September 20, 2005 5:13 AM

CHAPTER 5 ■ SPEECH 151

TTSCompare tts = new TTSCompare();
// java voice
JVoice voice1 = tts.getVoice(TTSCompare.JAVA_VOICE);
// free tts voice
JVoice voice2 = tts.getVoice(TTSCompare.FREETTS_VOICE);
// microsoft voice
JVoice voice3 = tts.getVoice(TTSCompare.MICROSOFT_VOICE);
// open all of these
voice1.open();
voice2.open();
voice3.open();
// speak some text
voice1.speak("Java Voice... Hello World!");
voice2.speak("Free TTS Voice... Hello World!");
voice3.speak("Microsoft Voice... Hello World!");
// close them
voice1.close();
voice2.close();
voice3.close();
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}

}
}
If you’d like to improve the quality of the FreeTTS voice, there are other extensions avail-
able at http://freetts.sourceforge.net.

Section Summary

In this section, I programmed my PC to talk using three different implementations of the
JVoice interface. Those classes are
• JavaVoice: This uses the JSAPI speech synthesis engine.

• FreeTTsVoice.java: This uses the FreeTTS speech synthesis engine.
• MicrosoftVoice.java: This uses JNI to connect the Microsoft Sound API and text-to-
speech engine.
Make sure you look at that site for more details. In the next section, I’m going to talk about
the second part of speech: recognition.