Text-to-speech in PHP with Google Translate

问题:

I am trying to convert words to speech ..

Untill now I have tried this:

<?php
 $text = "Hello this is a test for voice api of google";

// Name of the MP3 file generated using the MD5 hash
   $file  = md5($text);

// Save the MP3 file in this folder with the .mp3 extension 
   $file = "audio/" . $file .".mp3";
   if($file) {
     echo "created";
   } else {
     echo "not created";
   }

// If the MP3 file exists, do not create a new request
   if (!file_exists($file)) {
     $mp3 = file_get_contents(
        'http://translate.google.com/translate_tts?q=' . $text);
     echo "hello";
     file_put_contents($file, $mp3);
   } else {
     echo "hii";
   }
?>

In my html file :

<audio controls="controls" autoplay="autoplay">
  <source src="<?php echo $file; ?>" type="audio/mp3" />
</audio>

I am getting created hello and an audio player in output. But no file is played and neither it is created in the folder?

回答1:

1. There is a problem with the url you try to access. It is broken ! You should have tried first. The new URL, that I found on the FF console is :

   http://translate.google.com/translate_tts?ie=UTF-8&q=Hello&tl=en&total=1&idx=0&textlen=5&prev=input

   For the single word Hello. And you see that you have to specify the language, and the length of your text in textlen, even though it did work for all the sentences I tried without changing this var.

2. Another problem is that you have to urlencode() your text, or you will have a bug with accents and punctuation. So the line to download the MP3 becomes :

   // Language of the sentence
   $lang = "fr";
   $mp3 = file_get_contents(
   'http://translate.google.com/translate_tts?ie=UTF-8&q='. urlencode($text) .'&tl='. $lang .'&total=1&idx=0&textlen=5&prev=input');
   

So the complete code looks like :

<?php

    $text = "Bonjour, comment allez vous ?";
    // Yes French is a beautiful language.
    $lang = "fr";

    // MP3 filename generated using MD5 hash
    // Added things to prevent bug if you want same sentence in two different languages
    $file = md5($lang."?".urlencode($text));

    // Save MP3 file in folder with .mp3 extension 
    $file = "audio/" . $file . ".mp3";


    // Check folder exists, if not create it, else verify CHMOD
    if (!is_dir("audio/"))
        mkdir("audio/");
    else
        if (substr(sprintf('%o', fileperms('audio/')), -4) != "0777")
            chmod("audio/", 0777);


    // If MP3 file exists do not create new request
    if (!file_exists($file))
    {
        // Download content
        $mp3 = file_get_contents(
        'http://translate.google.com/translate_tts?ie=UTF-8&q='. urlencode($text) .'&tl='. $lang .'&total=1&idx=0&textlen=5&prev=input');
        file_put_contents($file, $mp3);
    }

?>

回答2:

An improved version:

// ~~~ Credits to kube ~~~

    $text = "Hello this is a test for voice api of google";
    $text = urlencode($text);
    $lang = urldecode("en");
    $file  = "audio/" . md5($text) .".mp3";
       if (!file_exists($file) || filesize($file) == 0) {
         $mp3 = file_get_contents('http://translate.google.com/translate_tts?ie=UTF-8&q='.$text.'&tl='.$lang.'&total=2&idx=0&textlen='.strlen($text).'&prev=input');
         if(file_put_contents($file, $mp3)){
            echo "Saved<br>";
         }else{
            echo "Wasn't able to save it !<br>";
         }
       } else {
         echo "Already exist<br>";
       }

回答3:

You cannot use this service for free.

Is there any free quota? No, the Google Translate API is only available as a paid service. Please see Pricing and Support for more details. However we do offer the Google Website Translator gadget, which will translate your website without charge.

Check translate API FAQ

More info about this unofficial way of use you can find on Techcrunch

回答4:

I found it:

https://translate.google.com.vn/translate_tts?ie=UTF-8&client=tw-ob&q=ANYTHING_TEXT&tl=YOUR_LANGUAGE_CODE

Important: client=tw-ob

YOUR_LANGUAGE_CODE can be en,us,uk,vi etc.

回答5:

You can also use the simple code below. Just echo the code to get the result. In this code, there is no need to save a file or getting permission problems.

 echo "<iframe hidden src='http://translate.google.com/translate_tts?ie=UTF-8&q=Welcome%20back%20".$jvm['firstname']."&tl=en&total=2&idx=0&textlen=5&prev=input'></iframe>";

回答6:

Your file is not creating because you forgot to create it , use below code for creating the file.

$file = "audio/".$file.".mp3";
$ourFileHandle = fopen($file, 'w') or die("can't open file");