https://api.asenax.com/voice/speak.php?lang=[LANG-CODE]&text=[TEXT TO SPEECH]

https://api.asenax.com/voice/speak.php?lang=en-US&text=Hello how are you?

var Speak = {
  audio:null,
  speak: function(text,language='en-US'){
    return new Promise((resolve,reject)=>{
      if(this.audio!=null){
        this.audio.pause();
        this.audio = null;
      }
      var audio = this.audio = new Audio('speak.php?lang='+encodeURIComponent(language)+'&text='+encodeURIComponent(text));
      audio.play();
      audio.onended = function(){
        resolve();
      }
    });
  }
};

https://api.asenax.com/voice/podcast.php?lang=[LANG-CODE]&text=[TEXT TO SPEECH]