return stream instead of http header redirect

src/audio.php

@@ -11,7 +11,10 @@ $random_number = rand(0, $files_count - 1);
 $random_file = $DIR . '/' . $files[$random_number];
 
 // Redirect
-header("Location: " . $random_file);
+header('Content-Type: audio/mpeg');
+header("Content-Transfer-Encoding: Binary"); 
+header("Content-disposition: attachment; filename=\"" . $random_file . "\""); 
+readfile($random_file);
 die();
 
 ?>
\ No newline at end of file