How to record voice from microphone using C#

   1:  using System;

   2:  using System.Data;

   3:  using System.Configuration;

   4:  using System.Web;

   5:  using System.Web.Security;

   6:  using System.Web.UI;

   7:  using System.Web.UI.WebControls;

   8:  using System.Web.UI.WebControls.WebParts;

   9:  using System.Web.UI.HtmlControls;

  10:   

  11:  //add below namespaces

  12:  using Microsoft.VisualBasic.Devices;

  13:  using Microsoft.VisualBasic;

  14:  using System.Runtime.InteropServices;

  15:   

  16:  //Add reference to "Microsoft.VisualBasic" which is

       available in .NET tab

  17:   

  18:  public partial class _Default : System.Web.UI.Page 

  19:  {

  20:     protected void Page_Load(object sender, EventArgs e)

  21:      {

  22:   

  23:      }

  24:      //Add the below API. winmm.dll is a module for the Windows Multimedia API, which contains low-level audio and joystick functions

  25: [DllImport("winmm.dll", EntryPoint = "mciSendStringA", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]

  26:      

  27:      //The mciSendString function sends a command

           string to an MCI device. 

  28:      //MCI devices are drivers that provide Windows- 

           based programs 

  29:      //device-independent capabilities for controlling

           multimedia hardware and software.

  30:      private static extern int mciSendString

  31:          (string lpstrCommand, string 

      lpstrReturnString, int uReturnLength, int hwndCallback);

  32:   

  33:      protected void  btnRecord_Click(object sender,

           EventArgs e)

  34:  {

  35:      mciSendString("open new Type waveaudio Alias

          TestSoundRecord", "", 0, 0);

  36:      mciSendString("record TestSoundRecord", "", 0, 0);

  37:  }

  38:  protected void  btnStopSave_Click(object sender,

       EventArgs e)

  39:  {

  40:      mciSendString("save TestSoundRecord

           c:\\recorded.wav", "", 0, 0);

  41:      mciSendString("close TestSoundRecord ", "", 0, 0);

  42:      Computer c = new Computer(); 

  43:      c.Audio.Stop();

  44:  }

  45: protected void btnRead_Click(object sender, EventArgs e)

  46:  {

  47:      Computer computer = new Computer(); 

  48:      computer.Audio.Play("C:\\recorded.wav",

           AudioPlayMode.Background);

  49:  }

  50:  }

recorded.wav will be a continuous file. you can create new file each time you click stop and save.