PHP音频传输与分块编码

我需要一个帮助，我正在制作一个流音频系统，我有一个问题与块传输编码，实际上我不知道如何使它在IOS, Android等上工作。是否有分块编码的替代方案?这是我的代码:

<?php
header('Transfer-Encoding: chunked');
header('Content-Type:audio/mpeg');
header('Connection: keep-alive');
ob_clean();
flush();
$buffer = '';
    $handle = fopen($filepath, 'rb');
    if($handle === false){
        return false;
    }
    while(!feof($handle)){
        $buffer = fread($handle, 8192);
        echo sprintf("%x'r'n", strlen($buffer));
        echo $buffer;
        echo "'r'n";
        ob_flush();
        flush();
    }
    echo sprintf("%x'r'n", 0);
    echo "'r'n";

    fclose($handle);
?>

Thanks for help