def text_to_speach(text):

    with open(join(dirname(__file__),'resources/text.wav'),
              'wb') as audio_file:
        audio_file.write(
            text_to_speech.synthesize(str(text), accept='audio/wav',
                                      voice="en-US_AllisonVoice"))

createjs.Sound.on("fileload", this.loadHandler, this);

function loadHandler(event) {
    createjs.Sound.play("x");
}

socket.onmessage = function(e) {
    createjs.Sound.registerSound("resources/text.wav", "x"); // регистрирую файл
    loadHandler() // вызываю функцию для воспроизведения
}

function initialHandler(event) {
  Voice = "resources/" + data.filename + ".wav";
  playHandler();
}
function registerHandler() {
  createjs.Sound.registerSound(Voice);
  createjs.Sound.on("fileload", playHandler);
}
function playHandler() {
  if(createjs.Sound.loadComplete(Voice)) {
    createjs.Sound.play(Voice);
  } else {
    registerHandler()
  }
}

file_path = join(dirname(__file__),'resources/{}.wav'.format(filename))
if not os.path.exists(file_path):
    with open(file_path, 'wb') as audio_file:
        audio_file.write(
            text_to_speech.synthesize(str(text),
                accept='audio/wav',
                voice="en-US_AllisonVoice")
            )