Sailing audio streaming

Question

I am trying to transfer audio from a browser (through a microphone) to a server for playback on speakers connected to a computer.

My server code calls getUserMedia (), pulls the left channel (b / c mono input) and sends it through websockets to my server, every 1024 bytes each time.

I have a built-in device (I think RPi) that works with node and with a connected speaker. I would like to somehow take these bytes and transfer them to the node server running sails.js, which then plays the audio from the connected speaker

Client

function recorderProcess(e) {
    var single = e.inputBuffer.getChannelData(0);
    io.socket.post('/emit_audio', convertFloat32ToInt16(single), function(){
        console.log('bytes sent');
    });
}

Server

emit_audio: function(req, res) {
    //This is where I get stuck
    sails.log('got bytes');
},

, . , , req.files() sails-skipper, . ajaxy ​​?