/**
* Check if a file is an audio file.
* @return boolean
* @param string $tag
* @param int $isMime
*/
function isAudio($tag, $isMime = false)
{
if ($isMime) {
$tag = zmgMimeHelper::convertMimeToExtension($tag);
}
return in_array($tag, zmgMimeHelper::_acceptableAudioList());
}
