    3 .  SkyFire aka XeOn.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  ,   ,   ,
   .   !
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
:
-  /    utf-8
-   3  wav, aac, m4a, wma
-   3 
- 
-  /   
-----------------------------
    getID3    .
-----------------------------
               .
     http://site.ru/dir/file.mp3    : dir/file.mp3 .
  .   :
<?
//  (            .

require 'MP3Tool.class.php';
//  

$mp3 = new MP3Tool();

$file = 'dir/file.mp3'; //   3 
$outFile = 'dir/new.wav'; //   
$bit = '128'; //  
$time = array(0, 20); //     1 - , 2 - 
$cover = 'img/cover.jpg'; //    (  jpg  jpeg)
$tags = array(
              'album' => '', //
              'artist' => 'David Guetta', //
              'title' => 'Test', // 
              'genre' => 'house', //
              'comment' => 'nice track', //
              'year' => '2006' //
             );
//    (     )
//    album, artist, title, genre, year, comment          
//  bitrate, sample_rate, filesize, duration, channels
//-         file_put_contents('cover.jpg', $info['cover']);

$info = $mp3 -> GetMp3Info($file);

//   
//         

$mp3 -> Write($file, $tags, $cover); //    

//  wav   128    0  20 .
//         

$mp3 -> Convert($file, $bit, $outFile, $time);

?>

 -  )))