如何使用节点服务器制作实时音频流？

Question

我想以音频流媒体为生。我从节点服务器通过管道传输我的 mp3 文件，没有问题。我在客户端播放 mp3，但它只在流结束时播放。我想在流继续时播放它。我该怎么做？

服务器端

   var stream = ss.createStream();
        ss(socket).emit('H_to_S_shareVoice', stream);
        var filename = 'musix' + '.mp3';
        console.log(filename);
        fs.createReadStream(filename).pipe(stream);

客户

<br>
<br>
<h1 id='socket'>not connected</h1>
<br>
<audio autoplay volume="1" controls id="audio" />

    $(document).ready(function () {

        $(function () {
            var socket = io.connect('http://localhost:4000');


            socket.on("connect", function () {
                console.log("on connect");
                document.getElementById('socket').innerHTML = 'connected to the server';

                ss(socket).on('H_to_S_shareVoice', function (stream, data) {
                    console.log('received', data);

                    var binaryString = "";
                    stream.on('data', function (data) {
                        console.log('data')
                        console.log(data.length)
                        for (var i = 0; i < data.length; i++) {
                            binaryString += String.fromCharCode(data[i]);
                        }
                        $("#audio").attr("src", "data:audio/wav;base64," + window.btoa(binaryString));
                        document.getElementById('audio').load();
                        document.getElementById('audio').play();
                        //document.getElementById('test').innerHTML = window.btoa(binaryString);
                        /*if (dat.length > 0 && oneTime) {
                            oneTime = false;

                        }*/
                        //  $("#audio").attr("src", "data:audio/wav;base64," + window.btoa(binaryString));


                        binaryString = ""
                    });

                    /*stream.on('end', function (data) {
                        console.log('end')
                        document.write(binaryString);
                        $("#audio").attr("src", "data:audio/wav;base64," + window.btoa(binaryString));

                        binaryString = "";
                    });*/
                });
            });
        });
    });

</script>

Answer 1

删除所有 Socket.IO 代码，整个 base64 编码一团糟...

您所要做的就是在收到请求时通过 HTTP 输出媒体数据。您的客户端代码就像 <audio src="path/on/the/server"></audio>.

一样简单

Answer 2

我用 PCMPlayer 修复了。

var player = new PCMPlayer({
                        encoding: '16bitInt',
                        channels: 2,
                        sampleRate: 16000,
                        flushingTime: 1000
                    });
                    stream.on('data', function (data) {
                        console.log(data)
                        player.feed(data);
                    });

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