<?php
//
// +-----------------------------------+
// |         Numeric TTS v 1.0         |
// |      http://www.SysTurn.com       |
// +-----------------------------------+
//
//
//   This program is free software; you can redistribute it and/or modify
//   it under the terms of the ISLAMIC RULES and GNU Lesser General Public
//   License either version 2, or (at your option) any later version.
//
//   ISLAMIC RULES should be followed and respected if they differ
//   than terms of the GNU LESSER GENERAL PUBLIC LICENSE
//
//   This program is distributed in the hope that it will be useful,
//   but WITHOUT ANY WARRANTY; without even the implied warranty of
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//   GNU General Public License for more details.
//
//   You should have received a copy of the license with this software;
//   If not, please contact support @ S y s T u r n .com to receive a copy.
//
  
CLASS NumericTTS
{
  var $voice = 'female';
  var $len = 0;
  
  function setVoice($voice)
  {
    if(is_dir(dirname(__FILE__) . '/voices/' . $voice . '/'))
    {
        $this->voice = $voice;
        return true;
    }
    else
    {
        return false;
    }
  }
  
  function header()
  {
    $len = pack('S*', $this->len);
    $len .= pack('@1');
    
    $header = pack('N*', 0x52494646);
    $header .= pack('C*', 0x8C);
    $header .= $len;
    $header .= pack('N*', 0x57415645);
    $header .= pack('N*', 0x666D7420);
    $header .= pack('N*', 0x10000000);
    $header .= pack('N*', 0x01000100);
    $header .= pack('N*', 0x401F0000);
    $header .= pack('N*', 0x401F0000);
    $header .= pack('N*', 0x01000800);
    $header .= pack('N*', 0x64617461);
    $header .= pack('C*', 0x68);
    $header .= $len;
    
    return $header;
  }
  
  function generate($number)
  {
    $number .= '-';
    
    $this->len = 0;

    $output = '';
    
    for($i=0, $len=strlen($number); $i<$len; $i++)
    {
        $num = strtolower(substr($number, $i, 1));
        if('-' == $num || ' ' == $num)
            $file = dirname(__FILE__) . '/voices/-.wav';
        else
            $file = dirname(__FILE__) . '/voices/' . $this->voice . '/' . $num . '.wav';
        if(!is_file($file)) continue;
        $fp = @fopen($file, 'rb');
        if($fp){
            $output .= fread($fp, filesize($file));
            fclose($fp);
        }
    }

    $this->len = (int)(strlen($output) / 260);

    return $this->header() . $output;
  }
  
  function output($number)
  {
    $output = $this->generate($number);
    header('Expires: 0');
    header('Pragma: no-cache');
    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
    header('Pragma: public');
    header('Content-Type: audio/x-wav');
    header('Content-Length: ' . strlen($output));
    echo $output;
    exit;
  }
  
  function write($number, $file)
  {
    $fp = fopen($file, 'wb');
    fwrite($fp, $this->generate($number));
    fclose($fp);
  }
}

?>