CODEWITHSUNDEEP
c#wpfnaudiospeakerheadphones
user2054702
user2054702

Reputation: 69

Play audio at two different Audiodevices simultaneously with Naudio

My question is similar to one here : Play audio to two different Audiodevices simultaneously with Naudio

But i ask it here again since it has not been answered clearly in the link above.

I also have it at: Play sound in both speaker and headset wpf

Inspiration from : Play a sound in a specific device with C#

I am adding source code and adding the NAudio tag here as well.

I have an wpf application and i am using the soundPlayer class to play sound (for eg ringtone). Currently the tone plays either on speakers or on the headset (if its plugged in). I would like the application to play the tone on speaker even when the headsets are plugged in. I know there are ways to do this in android, but couldn't find any in wpf. I would also like an UI for the user to choose the devices in which he would like to hear sound. Any help is appreciated. Thanks !

public void detectDevices()
{
    int waveOutDevices = WaveOut.DeviceCount;
    switch (waveOutDevices)
    {
        case 1:
            var wave1 = new WaveOut();
            wave1.DeviceNumber = 0;
            playSound(0); 

            break;
        case 2:
            var wave2 = new WaveOut();
            wave2.DeviceNumber = 0;
            playSound(0);

            var wave3 = new WaveOut();
            wave3.DeviceNumber = 1;
            playSound(1); 

            break;

    }
}

public void playSound(int deviceNumber)
{
    disposeWave();// stop previous sounds before starting
    waveReader = new NAudio.Wave.WaveFileReader(fileName);
    var waveOut = new NAudio.Wave.WaveOut();
    waveOut.DeviceNumber = deviceNumber;
    output = waveOut;
    output.Init(waveReader);
    output.Play();
}

public void disposeWave()
{
    if (output != null)
    {
        if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing)
        {
            output.Stop();
            output.Dispose();
            output = null;
        }
    }
    if (wave != null)
    {
        wave.Dispose();
        wave = null;
    }
}

case eSelector.startIncomingRinging:

            fileName = ("Ring.wav");
            detectDevices();

I still hear ringtone just in one device (either in headset or speakers) using the code above.

Upvotes: 0

Views: 4297

Answers (1)

Mark Heath
Mark Heath

Reputation: 49482

You need two instances of WaveOut, one for each soundcard. And then the simplest way if you are playing from file, is to also have two instances of WaveFileReader. You can't easily synchronize them I'm afraid, you'll just have to start them both playing together and hope for the best.

The wave1, wave2 and wave3 classes in your code above do abosolutely nothing. The audio will be played with the WaveOut device you create in playSound. You seem to have a single class property called output and another called waveReader, when you need two of each.

Upvotes: 1

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