let message = await sequlize.models.chat_message.find({ where: { type: 'voice', them: 'video', phone: '17660590622' }, raw: true })
   for (let index = 0; index < message.length; index++) {
            const element = message[index];

            var file_url = message.message;
            var DOWNLOAD_DIR = './downloads/';
            download_file_httpget(file_url,index);
         }
         
var download_file_httpget = function (file_url,index) {
    try {


        var DOWNLOAD_DIR = './downloads/';
        var options = {
            host: url.parse(file_url).host,
            port: 80,
            path: url.parse(file_url).pathname
        };

        var file_name = `${index}.mp3`;
        var file = fs.createWriteStream(DOWNLOAD_DIR + file_name);

        http.get(options, function (res) {
            res.on('data', function (data) {
                file.write(data);
            }).on('end', function () {
                file.end();
                console.log(file_name + ' downloaded to ' + DOWNLOAD_DIR);
            });
        });
    } catch (error) {
        console.log('err***********', error)
    }
};  

用node的steam模块下载音频文件播放不了，message是一个数组，如果下载单个文件可以播放，这是为什么？