CODEWITHSUNDEEP
windows-phone-8windows-phone-voip
user1934329
user1934329

Reputation: 559

how to play audio through earpiece only in windows phone 8 application

I have tried with AudioRoutingManager class...but i got unauthorizedaccess exception. here is my code

 AudioRoutingManager audioRouting = AudioRoutingManager.GetDefault();
    public AudioRoutingEndpoint ChangeAudioRoute()
    {

       var currentEndPoint= audioRouting.GetAudioEndpoint();
       switch (currentEndPoint)
       {
           case AudioRoutingEndpoint.Earpiece:
           case AudioRoutingEndpoint.Default:
               return AudioRoutingEndpoint.Speakerphone;

           case AudioRoutingEndpoint.Speakerphone:
               return AudioRoutingEndpoint.Earpiece;

               default:
               throw new OperationCanceledException();
       }
    }

    public void SetAudioRoute()
    {
        audioRouting.SetAudioEndpoint(this.ChangeAudioRoute());
    }

enter image description here

Upvotes: 5

Views: 2073

Answers (2)

norekhov
norekhov

Reputation: 4243

Old question but now I know the answer.

Two things which you need to do:

  1. Tag the audio in question as "communications"

How to do this depends on what API you're using. It could be as simple as . Or you might have to call IAudioClient2::SetClientProperties with an AudioClientProperties structure whose AudioClientProperties.eCategory = AudioCategory_Communications.

  1. Tag your app as either a "voice over IP" app or a "voicemail" app You should add file called WindowsPhoneReservedAppInfo.xml to your project with the following contents:

     <?xml version="1.0" encoding="utf-8"?>
 <WindowsPhoneReservedAppInfo         xmlns="http://schemas.microsoft.com/phone/2013/windowsphonereservedappinfo">
   <SoftwareCapabilities>
     <SoftwareCapability Id="ID_CAP_VOIP" />
   </SoftwareCapabilities>
 </WindowsPhoneReservedAppInfo>

Look for more detailed explanation here:

Playing audio to the earpiece from a Windows Phone 8.1 universal app

Upvotes: 2

Patrick F
Patrick F

Reputation: 1201

The APIs in the Windows.Phone.Media.Devices namespace require the ID_CAP_AUDIOROUTING and the ID_CAP_VOIP capability. (Add this to your manifest)

Also, it's only possible to change the audio routing while in a active VOIP call.

Additionally, you need to do the audio routing in your background VOIP process, and not in the foreground process.

Upvotes: 8

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