title: Cannot get Cordova text-to-speech plugin to work
body: <p>I'm trying various plugins for TTS, including the one at <a href="https://github.com/vilic/cordova-plugin-tts" rel="noreferrer">https://github.com/vilic/cordova-plugin-tts</a>, but cannot get any to work. For this one, for example, according to the docs, its usage should be: </p>
  
  <pre><code>    TTS
      .speak('hello, world!', function () {
          alert('success');
      }, function (reason) {
          alert(reason);
      });
  </code></pre>
  
  <p>but I get 'TTS not defined'. Also tried 'navigator.TTS....' but still no good. Also I'm unsure whether I need to include the tts.js in the package; if so I get 'exports not defined'. If anyone is successfully using this plugin, please can you put me in the correct direction? Or if there's an alternative plugin that works, I could use that, but many TTS plugins on GitHub appear unsupported for 3-4 years.
  BTW other plugins I am using  (e.g. geolocation) are working fine</p>