npm install google-speech --save
 

var google_speech = require('google-speech');
 
google_speech.ASR({
    developer_key: 'XXXXXXXX',
    file: 'data/1.wav',
  }, function(err, httpResponse, xml){
    if(err){
        console.log(err);
      }else{
        console.log(httpResponse.statusCode, xml)
      }
    }
);
 

var google_speech = require('google-speech');
 
google_speech.TTS({
  text: 'Привет, мир!',
  file: 'data/hello.mp3'
  }, function(){
    console.log('done');
  }
);
 
//or so
 
google_speech.TTS({
  text: 'Привет, мир!',
  file: 'data/hello.mp3',
  language: 'ru',
  encoding: 'UTF-8'
  }, function(){
    console.log('done');
  }
);