How to play sound in many devices at the same time

I want to play sound in three external sound cards at the same time,I mean when I click in a button I can hear sound from three speakers which are related to my three sound cards. I have a function but it plays sound only in one device,the first one it finds,I mean in this code the first device is number 0,so it play sound in it,but if you write device number 1 at first,it will play sound in it,as a conclusion it plays sound only in one device,it dont works for all the devices at the same time. This is its code:

public void playAllAvailableDevices()
{
//create a new class for each wav file & output etc.
WaveOut waveOut1 = new WaveOut();
WaveFileReader waveReader1 = new WaveFileReader(fileName);
WaveOut waveOut2 = new WaveOut();
WaveFileReader waveReader2 = new WaveFileReader(fileName);
WaveOut waveOut3 = new WaveOut();
WaveFileReader waveReader3 = new WaveFileReader(fileName);

switch (waveOutDevices)
{
case 1: 
waveOut1.Init(waveReader1);
waveOut1.DeviceNumber = 0;
waveOut1.Play();
break;
case 2: 
waveOut1.Init(waveReader1);
waveOut1.DeviceNumber = 0;
waveOut1.Play();

waveOut2.Init(waveReader2);
waveOut2.DeviceNumber = 1;
waveOut2.Play();
break;
case 3:
waveOut1.Init(waveReader1);
waveOut1.DeviceNumber = 0;
waveOut1.Play();

waveOut2.Init(waveReader2);
waveOut2.DeviceNumber 开发者_JAVA技巧= 1;
waveOut2.Play();

waveOut3.Init(waveReader3);
waveOut3.DeviceNumber = 2;
waveOut3.Play();
break;
}}

fileName is the name of the sound file I want to play,in my code I get this name from a darabase:

private void btnAlarm1_Click(object sender, EventArgs e)
    {

        OdbcConnection cn = new OdbcConnection("DSN=cp1");
        cn.Open();
        OdbcCommand cmd1 = new OdbcCommand("select chemin from alarme where code_alarme=41", cn);
        cmd1.Connection = cn;
        fileName = cmd1.ExecuteScalar().ToString();
        wave = new WaveOut();
        playAllAvailableDevices();
    }

Can you help me to find the solution please???? Thank you in advance. Good day.

You need to set the DeviceNumber property on the WaveOut object before calling Init. You could clean up your code a lot by using a simple function:

    private void PlaySoundInDevice(int deviceNumber, string fileName)
    {
        if (outputDevices.ContainsKey(deviceNumber))
        {
            outputDevices[deviceNumber].WaveOut.Dispose();
            outputDevices[deviceNumber].WaveStream.Dispose();
        }
        var waveOut = new WaveOut();
        waveOut.DeviceNumber = deviceNumber;
        WaveStream waveReader = new WaveFileReader(fileName);
        // hold onto the WaveOut and  WaveStream so we can dispose them later
        outputDevices[deviceNumber] = new PlaybackSession { WaveOut=waveOut, WaveStream=waveReader };

        waveOut.Init(waveReader);
        waveOut.Play();
    }

    private Dictionary<int, PlaybackSession> outputDevices = new Dictionary<int, PlaybackSession>();

    class PlaybackSession
    {
        public IWavePlayer WaveOut { get; set; }
        public WaveStream WaveStream { get; set; }
    }

The dictionary holds onto the WaveOut so it doesn't get garbage collected during playback, and allows us to clean up properly. Before you exit your application, make sure you clean up properly:

    private void DisposeAll()
    {
        foreach (var playbackSession in outputDevices.Values)
        {
            playbackSession.WaveOut.Dispose();
            playbackSession.WaveStream.Dispose();
        }
    }

And now you can play in all available devices using a for loop instead of your switch statement that requires you to duplicate code:

    public void PlayInAllAvailableDevices(string fileName)
    {
        int waveOutDevices = WaveOut.DeviceCount;
        for (int n = 0; n < waveOutDevices; n++)
        {
            PlaySoundInDevice(n, fileName);
        }
    }

I think what you are looking for is the BASS audio library:

http://www.un4seen.com/

This might also work:

http://www.alvas.net/alvas.audio.aspx

I don't think C# is set up to do this without a third-party add-in like the ones listed above. Maybe someone smarter than I can help you get it working but if not, these libraries will help you down the path you want.