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Real time voice chat over IP using C#

I am try to make a VOice chat over IP using C#. First I have connected two laptops. Then I have sent message between two laptops. Then I try to send vice message it is difficult. I counld get microphone voice input using Naudio. Then I should do sampling and put wave file into byte array and make data package and send it. In client side I should catch the data packet and conver it to sound. But the problem is I cant find any material to learn regarding code for to convert and send data package. I search Internet but I couldnt find anything that can I understand. SO please anyone help me to do this. I see many projects that people do but those are difficult to understand. I am beginer to about this sending data.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;``
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.IO;
namespace Tutorial7
{
public partial class Form1 : Form
{
Socket sock;
Socket acc;
public Form1()
{
InitializeComponent();
}
Socket socket()
{
return new Socket(AddressFamily.InterNetwork, SocketType.Stream,
ProtocolType.Tcp);
}
private void button1_Click(object sender, EventArgs e)
{
List<NAudio.Wave.WaveInCapabilities> sources = new
List<NAudio.Wave.WaveInCapabilities>();
for (int i = 0; i < NAudio.Wave.WaveIn.DeviceCount; i++)
{
sources.Add(NAudio.Wave.WaveIn.GetCapabilities(i));
}
sourceList.Items.Clear();
foreach (var source in sources)
{
ListViewItem item = new ListViewItem(source.ProductName);
item.SubItems.Add(new ListViewItem.ListViewSubItem(item,
source.Channels.ToString()));
sourceList.Items.Add(item);
}
}
NAudio.Wave.WaveIn sourceStream = null;
NAudio.Wave.DirectSoundOut waveOut = null;
NAudio.Wave.WaveFileWriter waveWriter = null;
private void button2_Click(object sender, EventArgs e)
{
if (sourceList.SelectedItems.Count == 0) return;
int deviceNumber = sourceList.SelectedItems[0].Index;
sourceStream = new NAudio.Wave.WaveIn();
sourceStream.DeviceNumber = deviceNumber;
sourceStream.WaveFormat = new NAudio.Wave.WaveFormat(44100,
NAudio.Wave.WaveIn.GetCapabilities(deviceNumber).Channels);
NAudio.Wave.WaveInProvider waveIn = new
NAudio.Wave.WaveInProvider(sourceStream);
}
}
}

I think you can use System.Net.Sockets.NetworkStream Class:
Have a look at:
https://learn.microsoft.com/en-us/dotnet/api/system.net.sockets.networkstream?redirectedfrom=MSDN&view=netframework-4.7.2
And this is a similar question: get stream of a socket object in c#

Sending and receiving an image over sockets with C# | Screen Sharing Using C#

I am trying to set up two programs in C#. Basically, a simple server side set up where I want the client to listen for an image from the Server. Then, upon receiving the image, will display it in a PictureBox.
**I keep running into the following error:
A first chance exception of type 'System.ArgumentException' occurred in System.Drawing.dll or Parameter is not Valid**
SERVER SIDE
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ServerComputer
{
public partial class mainForm : Form
{
public mainForm()
{
InitializeComponent();
}
Socket sendsocket;
private void goLive_Click(object sender, EventArgs e)
{
try
{
sendsocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//The instantiation of socket, IP for 192.168.1.106, 10001 for Port
IPEndPoint ipendpiont = new IPEndPoint(IPAddress.Parse(ipAddress.Text.Trim()), 10001);
sendsocket.Connect(ipendpiont);
//Establishment of end point
Thread th = new Thread(new ThreadStart(threadimage));
th.IsBackground = true;
th.Start();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
return;
}
this.Hide(); //Hidden form
}
private Bitmap GetScreen()
{
Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Graphics g = Graphics.FromImage(bitmap);
g.CopyFromScreen(0, 0, 0, 0, bitmap.Size);
return bitmap;
}
private void threadimage()
{
try
{
while (true)
{
MemoryStream ms = new MemoryStream();
GetScreen().Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); //Here I use the BMP format
byte[] b = ms.ToArray();
sendsocket.Send(b);
Thread.Sleep(67); //I'm here to set to send a second
}
}
catch (Exception ee)
{
MessageBox.Show(ee.Message);
return;
}
}
}
}
CLIENT SIDE
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ClientComputer
{
public partial class mainForm : Form
{
public mainForm()
{
InitializeComponent();
}
Socket hostSocket;
Thread thread;
string localIP = string.Empty;
string computrHostName = string.Empty;
private void mainForm_Load(object sender, EventArgs e)
{
computrHostName = Dns.GetHostName();
IPHostEntry hostname = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in hostname.AddressList)
{
if (ip.AddressFamily.ToString() == "InterNetwork")
{
localIP = ip.ToString();
}
}
}
private void liveScreen_Click(object sender, EventArgs e)
{
Socket receiveSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint hostIpEndPoint = new IPEndPoint(IPAddress.Parse(localIP), 10001);
//Connection node
receiveSocket.Bind(hostIpEndPoint);
receiveSocket.Listen(10);
MessageBox.Show("start");
hostSocket = receiveSocket.Accept();
thread = new Thread(trreadimage);
thread.Start();
thread.IsBackground = true;
}
private void trreadimage()
{
int dataSize, i = 0;
try
{
while (true)
{
i++;
byte[] b = new byte[1024 * 1024 * 20]; //Picture of great
dataSize = hostSocket.Receive(b,0,b.Length,SocketFlags.None);
MemoryStream ms = new MemoryStream(b,0,dataSize,true);
//bitmap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
Image img = Image.FromStream(ms);
img.Save("Image"+i+".Jpeg", System.Drawing.Imaging.ImageFormat.Jpeg);
videoBox.Image = img;
Console.WriteLine("Image Size: " + dataSize);
}
}
catch (Exception ee)
{
MessageBox.Show(ee.Message);
thread.Abort();
}
}
}
}

I can't stop repeating: never ever send raw data to a socket and expect to receive them the same way on another end. Use a protocol instead, to describe your network activity. In simplest case, send DWORD first that designated total length of your image. Same time, it's worth to reuse existing protocols like HTTP or what can fit your needs.
Why to bother? Well, if your "network" is just a piece of wire with two jacks on ends that placed directly into network cards of your PCs, that maybe happen to work OK (and still no 100% warranty). In real case, your "network connection" is a pack of inter-connections between routers, firewalls, switches and all that sort of hidden machinery in-between. They can (and will!) re-shape your stream the way they find useful for them. So, on the other end, how can your counterparty understand: is there everything received? how many packets to expect? etc. etc. etc.
So, sending some business data directly to socket is the same efficient as yelling to the window if you plan to say something to your friend living nearby. And, usually we use a phone with that kind of communication protocol "hey, Peter?.. yes, it's me.. listen, take care about your car as hail shower is coming... Bye!". See the difference?

Following code is working now, and I have few suggestions,
Try Async methods/events to receive and send data through socket instead of using loop or recursive methods.
Server Code.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Runtime.Serialization.Formatters.Binary;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ServerComputer
{
publicpartialclassmainForm : Form
{
public mainForm()
{
InitializeComponent();
}
Socket sendsocket;
privatevoid goLive_Click(object sender, EventArgs e)
{
try
{
sendsocket = newSocket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
//The instantiation of socket, IP for 192.168.1.106, 10001 for PortIPEndPoint ipendpiont = newIPEndPoint(IPAddress.Parse(ipAddress.Text.Trim()), 10001);
sendsocket.Connect(ipendpiont);
//Establishment of end pointThread th = newThread(newThreadStart(threadimage));
th.IsBackground = true;
th.Start();
}
catch (Exception ee)
{
MessageBox.Show(ee.Message);
return;
}
this.Hide(); //Hidden form
}
privateBitmap GetScreen()
{
Bitmap bitmap = newBitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height);
Graphics g = Graphics.FromImage(bitmap);
g.CopyFromScreen(0, 0, 0, 0, bitmap.Size);
return bitmap;
}
privatevoid threadimage()
{
try
{
MemoryStream ms = newMemoryStream();
GetScreen().Save(ms, System.Drawing.Imaging.ImageFormat.Bmp); //Here I use the BMP formatbyte[] b = ms.ToArray();
sendsocket.Send(b);
ms.Close();
}
catch (Exception ee)
{
// MessageBox.Show(ee.Message);//return;
}
Thread.Sleep(1000);
threadimage();
}
}
}
Clint Code.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace ClientComputer
{
public partial class mainForm : Form
{
public mainForm()
{
InitializeComponent();
}
Socket hostSocket;
Thread thread;
string localIP = string.Empty;
string computrHostName = string.Empty;
private void mainForm_Load(object sender, EventArgs e)
{
computrHostName = Dns.GetHostName();
IPHostEntry hostname = Dns.GetHostEntry(Dns.GetHostName());
foreach (IPAddress ip in hostname.AddressList)
{
if (ip.AddressFamily.ToString() == "InterNetwork")
{
localIP = ip.ToString();
}
}
this.Text = this.Text + " | " + localIP;
}
private void liveScreen_Click(object sender, EventArgs e)
{
connectSocket();
}
private void connectSocket()
{
Socket receiveSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPEndPoint hostIpEndPoint = new IPEndPoint(IPAddress.Parse(localIP), 10001);
//Connection node
receiveSocket.Bind(hostIpEndPoint);
receiveSocket.Listen(10);
MessageBox.Show("start");
hostSocket = receiveSocket.Accept();
thread = new Thread(new ThreadStart(trreadimage));
thread.IsBackground = true;
thread.Start();
}
private void trreadimage()
{
int dataSize;
string imageName = "Image-" + System.DateTime.Now.Ticks + ".JPG";
try
{
dataSize = 0;
byte[] b = new byte[1024 * 10000]; //Picture of great
dataSize = hostSocket.Receive(b);
if (dataSize > 0)
{
MemoryStream ms = new MemoryStream(b);
Image img = Image.FromStream(ms);
img.Save(imageName, System.Drawing.Imaging.ImageFormat.Jpeg);
videoBox.Image = img;
ms.Close();
}
}
catch (Exception ee)
{
//MessageBox.Show(ee.Message);
//thread.Abort();
}
System.Threading.Thread.Sleep(1500);
trreadimage();
}
}
}

MemoryStream ms = new MemoryStream(b);
Image img = Image.FromStream(ms);
img.Save(imageName, System.Drawing.Imaging.ImageFormat.Jpeg);
videoBox.Image = img;
The error may due to corrupted or incomplete bmp image received in the MemoryStream it worked fine for me after increasing the socket send/receive buffers values
so adjust the sender "Socket.SendBufferSize" and the receiver "Socket.ReceiveBufferSize" to large values for example SendBufferSize = 1024 * 1024 * 20
this will help sending the entire image at once.
or another solution is to check whether the received data size (b.length) is the same as the sent image data size, before the code line of forming the received image stream

NAudio AsioOut + Sockets

I'm newbie in audio programming and in sockets programming. I'm trying to send guitar signal over a network using NAudio AsioOut class and Sockets.
Here's source code of Receiver and Sender.
It seems like the receiver really gets the bytes array from sender, but all what I hear is white noise.
Receiver source code
using System;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Threading;
using NAudio.Utils;
using NAudio.Wave;
using NAudio.Wave.SampleProviders;
namespace Reciever
{
internal class Program
{
private static Socket Listener;
private static Socket Accepter;
private static AsioOut Output;
private static BufferedWaveProvider OutputBuffer;
[STAThread]
private static void Main(string[] args)
{
IPHostEntry ipHostEntry = Dns.GetHostEntry("192.168.1.4");
IPAddress ipAddr = ipHostEntry.AddressList[2];
IPEndPoint ipEndPoint = new IPEndPoint(ipAddr, 7777);
Listener = new Socket(ipAddr.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
Console.WriteLine("Слушатель готов по адресу:{0} ", ipEndPoint);
Listener.Bind(ipEndPoint);
Listener.Listen(10);
Accepter = Listener.Accept();
Console.WriteLine("Клиент с адресом {0} подключен", Accepter.RemoteEndPoint);
Output = new AsioOut();
Output.ShowControlPanel();
Console.Read();
OutputBuffer = new BufferedWaveProvider(WaveFormat.CreateIeeeFloatWaveFormat(44100, 2));
Output.Init(OutputBuffer);
Thread playing = new Thread(new ThreadStart(Output.Play));
Thread listening = new Thread(new ThreadStart(Listening));
playing.Start();
listening.Start();
}
public static void Listening()
{
while (true)
{
byte[] buffer = new byte[65538];
int ReceivedData = Accepter.Receive(buffer);
OutputBuffer.AddSamples(buffer, 0, ReceivedData);
}
}
}
}
Sender source code
using System;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using NAudio.Wave;
namespace Sender
{
class Program
{
private static Socket sck;
[STAThread]
static void Main(string[] args)
{
AsioOut asioout = new AsioOut();
IPHostEntry ipHostEntry = Dns.GetHostEntry("192.168.1.2");
IPAddress ipAddr = ipHostEntry.AddressList[1];
IPEndPoint ipEndPoint = new IPEndPoint(ipAddr, 7777);
sck = new Socket(ipEndPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
BufferedWaveProvider buffer = new BufferedWaveProvider(WaveFormat.CreateIeeeFloatWaveFormat(44100,2));
sck.Bind(ipEndPoint);
try
{
sck.Connect("192.168.1.4", 7777);
}
catch (Exception ex)
{
Console.WriteLine("Соединие не установлено");
Console.Read();
return;
}
Console.WriteLine("Соединение установлено");
asioout.InitRecordAndPlayback(buffer, 2, 44100);
asioout.AudioAvailable += new EventHandler<AsioAudioAvailableEventArgs>(asioout_AudioAvailable);
asioout.Play();
Console.Read();
}
private static void asioout_AudioAvailable(object sender, AsioAudioAvailableEventArgs e)
{
var samples = e.GetAsInterleavedSamples();
byte[] OutputBuffer = new byte[e.SamplesPerBuffer*4];
byte[] SendingBuffer = new byte[e.SamplesPerBuffer*4];
Console.WriteLine(e.SamplesPerBuffer*4);
for (int i = 0; i < e.InputBuffers.Length; i++)
{
Marshal.Copy(e.InputBuffers[i], OutputBuffer, 0, e.SamplesPerBuffer*4);
Buffer.BlockCopy(samples, 0, SendingBuffer, 0, e.SamplesPerBuffer*4);
Marshal.Copy(OutputBuffer, 0, e.OutputBuffers[i], e.SamplesPerBuffer * 4);
}
sck.Send(SendingBuffer);
e.WrittenToOutputBuffers = true;
}
}
}
UPD.1 (07.10.2015): Sender code and Receiver code are updated. Now I can hear the guitar signal from receiver, but it sounds very distorted. What I do wrong?
P.S. I'm using M-Audio Fast Track USB sound card on my desktop PC. The signal goes from that one to my laptop with ASIO4ALL driver over the network.

Your receiver assumes that the incoming audio is 16 bit, but with ASIO, it could easily be 24 or 32 bit. In fact, your sending code seems to assume 32 bit. So start by trying to use an IEEE float WaveFormat on the receiving end

Writing/reading string through NetworkStream (sockets) for a chat

Sorry if this is hard to understand, trying out C# for the first time.
I am trying to make a simple public 'chat' between clients that are connected to the server. I've tried passing integers to the server and printing them out and everything was fine, however,when I switched to strings, it seems that it can only pass 1 character (because of ns.Write(converted, 0, 1);). If I increase the ns.Write to ns.Write(converted,0,10) everything crashes (both the client and the server) when I enter a message that is less than 10 characters.
Server code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Net.Sockets;
namespace MultiServeris
{
class Multiserveris
{
static void Main(string[] args)
{
TcpListener ServerSocket = new TcpListener(1000);
ServerSocket.Start();
Console.WriteLine("Server started");
while (true)
{
TcpClient clientSocket = ServerSocket.AcceptTcpClient();
handleClient client = new handleClient();
client.startClient(clientSocket);
}
}
}
public class handleClient
{
TcpClient clientSocket;
public void startClient(TcpClient inClientSocket)
{
this.clientSocket = inClientSocket;
Thread ctThread = new Thread(Chat);
ctThread.Start();
}
private void Chat()
{
byte[] buffer = new byte[10];
while (true)
{
NetworkStream ns = clientSocket.GetStream();
ns.Read(buffer,0,1);
string line = Encoding.UTF8.GetString(buffer);
Console.WriteLine(line);
}
}
}
}
Client code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
namespace Klientas
{
class Klientas
{
static void Main(string[] args)
{
while (true)
{
TcpClient clientSocket = new TcpClient("localhost", 1000);
NetworkStream ns = clientSocket.GetStream();
byte[] buffer = new byte[10];
string str = Console.ReadLine();
byte[] converted = System.Text.Encoding.UTF8.GetBytes(str);
ns.Write(converted, 0, 1);
}
}
}
}

You're best using the BinaryReader/BinaryWriter classes to correctly format and read out data. This removes the need to process it yourself. For example in the client do:
BinaryWriter writer = new BinaryWriter(clientSocket.GetStream());
writer.Write(str);
And in the server:
BinaryReader reader = new BinaryReader(clientSocket.GetStream());
Console.WriteLine(reader.ReadString());

When using BinaryReader or BinaryWriter on the same stream, and you have .NET framework version 4.5 or above, be sure to leave the underlying stream open by using the overload:
using (var w = new BinaryWriter(stream, Encoding.UTF8, true)) {}

using sockets to chat in web app gives me an error

I Tried to use sockets in asp.net using C#.
The commented line in the client code gives me error.
The server code is running properly.
This is the Client Code which Gives error.
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.Text;
public partial class _Default : System.Web.UI.Page
{
System.Net.Sockets.TcpClient clientSocket = new System.Net.Sockets.TcpClient();
NetworkStream serverStream = default(NetworkStream);
string readData = null;
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Post_Click(object sender, EventArgs e)
{
if (txtmsg.Text != "")
{
byte[] outStream = System.Text.Encoding.ASCII.GetBytes(txtmsg.Text + "$");
serverStream.Write(outStream, 0, outStream.Length);
// This line gives error Saying Object reference not set to an instance of an object.
serverStream.Flush();
}
}
protected void Connect_Click(object sender, EventArgs e)
{
if (txtSub.Text != "")
{
try
{
readData = "Conected to Chat Server ...";
msg();
clientSocket.Connect("127.0.0.1", 8888);
serverStream = clientSocket.GetStream();
byte[] outStream = System.Text.Encoding.ASCII.GetBytes(txtSub.Text + "$");
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
Thread ctThread = new Thread(getMessage);
ctThread.Start();
}
catch
{
//Disconnect();
}
}
}
private void getMessage()
{
while (true)
{
serverStream = clientSocket.GetStream();
int buffSize = 0;
byte[] inStream = new byte[10025];
buffSize = clientSocket.ReceiveBufferSize;
serverStream.Read(inStream, 0, buffSize);
string returndata = System.Text.Encoding.ASCII.GetString(inStream);
readData = "" + returndata;
msg();
}
}
private void msg()
{
//if (this.InvokeRequired)
// this.Invoke(new MethodInvoker(msg));
//else
txtget.Text = txtget.Text + Environment.NewLine + " >> " + readData;
}
}

Your serverSteam object isn't being properly initialised and therefore causes an object error when you try to reference it.
You need to create a new NetworkSteam with a Socket object, and ensure that your Socket object is connected:
Socket my_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
..
// connect socket and any other operations
..
NetworkStream my_network_stream = new NetworkStream(my_socket);