NodejsApp.js

var net = require('net');
var clients = [];

net.createServer(function (socket) {

  clients.push(socket);
  
  socket.on('data', function (data) {
    broadcast(data, socket);
  });

  socket.on('end', function () {
    clients.splice(clients.indexOf(socket), 1);
  });
  
  function broadcast(message, sender) {
    clients.forEach(function (client) {
     if (client === sender) return true;
      client.write(message);
    });
    
  }

}).listen(7000);

console.log("Chat server running at port 7000");

Reciver.as

package  {
	
	import flash.display.MovieClip;
	import flash.events.ProgressEvent;
	import flash.events.IOErrorEvent;
	import flash.events.SampleDataEvent;
	import flash.media.Sound;
	import flash.net.Socket;
	import flash.utils.ByteArray;
	
	public class Reciver extends MovieClip{
		
		private var socket:Socket = new Socket();
		private var socketAddress: String = 'localhost'; //TCP Socket address
		private var socketPort:int = 7000; // TCP Socket port address
		
		private var sound:Sound = new Sound();
		private var bytes:ByteArray = new ByteArray();
		
		public function Reciver(){
			if(socketConnect() == true){
				
				// TODO: more stuff need to be done to the play sound
				// sound.addEventListener(SampleDataEvent.SAMPLE_DATA, /*??????*/);
				// sound.play();
			}
		}
		
		private function socketConnect():Boolean{
			socket.connect(socketAddress, socketPort);
			socket.addEventListener(ProgressEvent.SOCKET_DATA, socketData);
			socket.addEventListener(IOErrorEvent.IO_ERROR, socketError);
			return socket.connected;
		}
				
		private function socketData(event:ProgressEvent):void{
			if(socket.bytesAvailable >= 8){
				socket.readBytes(bytes);
				bytes.position = 0;
				
				// Should be something like this here?
				// sound.loadCompressedDataFromByteArray(bytes, bytes.bytesAvailable);
			}
		}
		
		private function socketError(event:IOErrorEvent):void{
			trace('socketError - IO Error: ' + event.text);
		}

	}
	
}

Streamer.as

package {
	
	import flash.display.MovieClip;
	import flash.errors.IOError;
	import flash.events.SampleDataEvent;
	import flash.events.ProgressEvent;
	import flash.events.IOErrorEvent;
	import flash.media.Microphone;
	import flash.net.Socket;
	import flash.utils.ByteArray;
	
	public class Streamer extends MovieClip{
		
		private var socket:Socket = new Socket();
		private var socketAddress:String = 'localhost'; //TCP Socket address
		private var socketPort:int = 7000; // TCP Socket port address
		
		private var microphone:Microphone = new Microphone();
		private var microphoneRate:int = 40;
		private var microphoneEchoSupression:Boolean = true;
		
		public function Streamer(){
			if(socketConnect() == true){
				startMicrophone();
			}
		}
		
		private function startMicrophone():void{
			microphone.rate = microphoneRate;
			microphone.setUseEchoSuppression(microphoneEchoSupression);
			microphone.addEventListener(SampleDataEvent.SAMPLE_DATA, socketWrite);
			
		}
		
		private function socketConnect():Boolean{
			socket.connect(socketAddress, socketPort);
			socket.addEventListener(ProgressEvent.SOCKET_DATA, socketData);
			socket.addEventListener(IOErrorEvent.IO_ERROR, socketError);
			return socket.connected;
		}
		
		private function socketData(event:ProgressEvent):void{
			if(socket.bytesAvailable > 0){
				trace('socketData: server sent some data');
			}
		}
		
		private function socketError(event:IOErrorEvent):void{
			trace('socketError - IO Error: ' + event.text);
		}
		
		private function socketWrite(event:SampleDataEvent):void{
			var sample:Number = event.data.readFloat();
			var bytes:ByteArray = new ByteArray();
			
			bytes.writeDouble(sample);
			bytes.position = 0;
			socket.writeBytes(bytes); //Write the microphone data into the socket
		}
	}
}