speak.php

<?php 

$options = array(
  'http'=>array(
  'method'=>"GET",
  'header'=>"Accept-language: en\r\n" .
            "User-Agent: Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1667.0 Safari/537.36"
  )
);

$context = stream_context_create($options);

header('Content-Type: audio/mpeg');
header('Cache-Control: no-cache');
header("Content-Transfer-Encoding: chunked"); 

readfile("http://translate.google.com/translate_tts?client=tw-ob&tl=".urlencode($_GET["lang"])."&q=".urlencode($_GET["text"].""), false, $context);
?>