How to connect byte array and streaming audio?

Question

I am creating a relay server for my streaming application. Basically, it should work as follows:

• Customer. Microphone audio stream to the server through sockets.
• The server receives the stream and possibly temporarily saves it somewhere (not sure)
• Client B receives the stream from the server and plays it back.

Basically, I have the first part (sending the microphone to the server):

while(isStreaming) { minBufSize = recorder.read(buffer, 0, buffer.length); mSocket.emit("stream", Arrays.toString(buffer)); } 

And the third part is done just by playing the audio:

 mediaplayer.reset(); mediaplayer.setDataSource("http://192.168.1.2:1337/stream"); mediaplayer.prepare(); mediaplayer.start(); 

Now I'm not sure how to hide the incoming byte array and streaming. Here is my current server code:

 var ms = require('mediaserver'); // from server to Client B exports.letsStream = function(req, res, next) { ms.pipe(req, res, "sample_song_music_file.mp3"); }; // from Client A to server exports.handleSocketConnection = function(socket) { console.log("connected"); socket.on('stream', function(data) { var bytes = JSON.parse(data); console.log("GETTING STREAM:" + bytes); }); } 

Any suggestions? How can I pass this byte array directly?

Answer 1

The mediaserver module only supports streaming of existing audio, not a live stream. This will not work.

One way to achieve three goals:

• https://www.npmjs.com/package/microphone to read the microphone sound as a stream of bytes.
• http://binaryjs.com/ to handle the transfer of byte stream through web ports to the server and then send it to the client. If you have two separate paths, one for sending data, one for receiving. Send data from one stream to another.
• Use https://github.com/TooTallNate/node-speaker to play incoming PCM data stream on client B