eeejay/webspeechdemos — pull request #1 by itsyash (2014-05-07 22:36:50+00:00)
Title: changing the voice works now

Initially,

utterance.voice = form.voice.options[form.voice.selectedIndex].voice,

we are assigning a html element to the voice, which is not correct. It should be

utterance.voice = voices[form.voice.selectedIndex] , where voices = window.speechSynthesis.getVoices();