using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using Microsoft.DirectX.DirectSound;namespace Noisey{	/// <summary>	/// Very simple test form	/// </summary>	public class MainForm : System.Windows.Forms.Form	{		private System.Windows.Forms.Button buttonWhiteNoise;		/// <summary>		/// Required designer variable.		/// </summary>		private System.ComponentModel.Container components = null;		Device applicationDevice;		public MainForm()		{			//			// Required for Windows Form Designer support			//			InitializeComponent();			//			// Add any constructor code after InitializeComponent call			//			applicationDevice = new Device();			applicationDevice.SetCooperativeLevel(this, CooperativeLevel.Normal);		}		/// <summary>		/// Clean up any resources being used.		/// </summary>		protected override void Dispose( bool disposing )		{			if( disposing )			{				if (components != null) 				{					components.Dispose();				}			}			base.Dispose( disposing );		}		#region Windows Form Designer generated code		/// <summary>		/// Required method for Designer support - do not modify		/// the contents of this method with the code editor.		/// </summary>		private void InitializeComponent()		{			this.buttonWhiteNoise = new System.Windows.Forms.Button();			this.SuspendLayout();			// 			// buttonWhiteNoise			// 			this.buttonWhiteNoise.Location = new System.Drawing.Point(168, 48);			this.buttonWhiteNoise.Name = "buttonWhiteNoise";			this.buttonWhiteNoise.Size = new System.Drawing.Size(104, 23);			this.buttonWhiteNoise.TabIndex = 0;			this.buttonWhiteNoise.Text = "WhiteNoise";			this.buttonWhiteNoise.Click += new System.EventHandler(this.buttonWhiteNoise_Click);			// 			// MainForm			// 			this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);			this.ClientSize = new System.Drawing.Size(292, 260);			this.Controls.Add(this.buttonWhiteNoise);			this.Name = "MainForm";			this.Text = "Noisey";			this.ResumeLayout(false);		}		#endregion		/// <summary>		/// The main entry point for the application.		/// </summary>		[STAThread]		static void Main() 		{			Application.Run(new MainForm());		}		private void buttonWhiteNoise_Click(object sender, System.EventArgs e)		{			WaveFormat format = new WaveFormat();         			format.BitsPerSample = 8;         			format.Channels = 1;         			format.BlockAlign = 1;         			format.FormatTag = WaveFormatTag.Pcm;         			format.SamplesPerSecond = 8000; //sampling frequency of your data;   			format.AverageBytesPerSecond = format.SamplesPerSecond * format.BlockAlign;         			// buffer description         			BufferDescription desc = new BufferDescription(format);			desc.DeferLocation = true;			desc.BufferBytes = 3 * format.AverageBytesPerSecond;                        			// create the buffer         			//Device ApplicationDevice = new Device();						SecondaryBuffer secondaryBuffer = new SecondaryBuffer(desc,applicationDevice);      			//generate ramdom data (white noise)			byte[] rawsamples = new byte[22050];			Random rnd1 = new System.Random();      			for (int i = 0; i < 22050; i++)			{				//-----------------------------------------------				//Completely random				//add a new audio sample to array				rawsamples = (byte) rnd1.Next(255);				//-----------------------------------------------				//-----------------------------------------------				//-- Sine wave? (comment out for white noise)				int convert = (int) ( Math.Sin(i) * Math.PI );				for(int index=0; index<2; index++)				{					i+=index;					rawsamples = (byte)(convert >> (index*8));				}				//-----------------------------------------------			}      			//load audio samples to secondary buffer			secondaryBuffer.Write(0,rawsamples, LockFlag.EntireBuffer);      			//play audio buffer						secondaryBuffer.Play(0,BufferPlayFlags.Default);				}	}}

long DataLength = 40000; //0xD9B4;long SampleRate = 0x5622; //samples per second.int Channels = 1;int BitsPerSample = 8;int BytesPerSample = (BitsPerSample / 8) * Channels;long BytesPerSec = SampleRate * BytesPerSample;long length = DataLength + 36; //4+24+8Capture c = new Capture();         CaptureBufferDescription cpd = new CaptureBufferDescription();cpd.BufferBytes = 40000;WaveFormat fmt = new WaveFormat();fmt.AverageBytesPerSecond = (int)BytesPerSec;fmt.BitsPerSample = (short)BitsPerSample;fmt.Channels = (short)Channels;fmt.SamplesPerSecond = (int)SampleRate;fmt.BlockAlign = 1;fmt.FormatTag = WaveFormatTag.Pcm;         cpd.Format = fmt;CaptureBuffer cb = new CaptureBuffer(cpd,c);cb.Start(false);int pos=0;int pos1=0;while(pos < 39999){   cb.GetCurrentPosition(out pos,out pos1);}cb.Stop();byte[] mybuff = new byte[40000];MemoryStream mystream = new MemoryStream(mybuff,0,40000,true,true);cb.Read(0,mystream,40000,LockFlag.None);Random rnd = new Random((int)(new DateTime()).Date.Ticks);byte[] initialsound = new byte[length+8];char[] headerdata = {'R','I','F','F',                           (char)(length & 0xFF),                           (char)(length >> 8 & 0xFF),                           (char)(length >> 16 & 0xFF),                           (char)(length >> 24 & 0xFF),                           'W','A','V','E','f','m','t',' ',                           (char)0x10,(char)0,(char)0,(char)0,(char)0x01,(char)0x00,                           (char)(Channels & 0xFF), (char)(Channels >> 8 & 0xFF),                           (char)(SampleRate & 0xFF),                           (char)(SampleRate >> 8 & 0xFF),                           (char)(SampleRate >> 16 & 0xFF),                           (char)(SampleRate >> 24 & 0xFF),                           (char)(BytesPerSec & 0xFF),                           (char)(BytesPerSec >> 8 & 0xFF),                           (char)(BytesPerSec >> 16 & 0xFF),                           (char)(BytesPerSec >> 24 & 0xFF),                           (char)(BytesPerSample & 0xFF), (char)(BytesPerSample >> 8 & 0xFF),                           (char)(BitsPerSample & 0xFF), (char)(BitsPerSample >> 8 & 0xFF),                           'd','a','t','a',                           (char)(DataLength & 0xFF),                           (char)(DataLength >> 8 & 0xFF),                           (char)(DataLength >> 16 & 0xFF),                           (char)(DataLength >> 24 & 0xFF)};//copy the header data to the sound byte array.for(int i=0;i<44;i++){   initialsound = (byte)headerdata;}for(int i =44;i<DataLength+44;i+=2){             initialsound = mybuff[i-44];} MemoryStream mystream1 = new MemoryStream(initialsound,0,(int)(DataLength+44),true,true);         snd = new SecondaryBuffer(mystream1,ApplicationDevice);snd.Play(0,BufferPlayFlags.Looping);