Cordova text to speech not working

Has anyone had any luck with this plugin. Maybe I’m just implementing it wrong. It keeps giving me an error that ‘speak’ is undefined.
Here’s what I have.

document.addEventListener(‘deviceready’, function() {
window.TTS.speak({
text: word,
locale: ‘en-US’,
rate: 1
}, function() {
console.log(‘Text succesfully spoken’);
}, function(reason) {
console.log(reason);
});
}, false);