what capability must I add to my manifest to enable access to audio devices?

Question

I am working with Visual Studio 2022 Community edition. Years ago I wrote a program in Win32 that opened an audio device and plotted the signal on the screen. I want to do that same function but now with .NET. When I do a

var endpointId = MediaDevice.GetDefaultAudioRenderId(AudioDeviceRole.Default);

I get a return string. But when I follow that with

var audioModuleManager = new AudioDeviceModulesManager(endpointId);

I get an exception Access Denied. I think I understand that I need to add a capability in my manifest to access audio, but going to the Package.appmanifest under capabilities all I find is "microphone" and clicking that does not help. So why do I get Access Denied when I try to find audio devices and what do I need to add as a capability in order to do so?

Answer 1

Hi @Joe Babb , Welcome to Microsoft Q&A,

Because the OP can't mark its own answers, it will be sorted out and sent.

The solution to the question is as follows:

I found the answer to my question. It was a matter of adding a restricted capability into the Package.appxmanifest. xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"and<DeviceCapability Name="audioDeviceConfiguration"/> this wasn't easy to find. Apparently MS doesn't like folks working with audio devices.

Best Regards,

Jiale

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Answer 2

I found the answer to my question. It was a matter of adding a restricted capability into the Package.appxmanifest.

xmlns:rescap="http://schemas.microsoft.com/appx/manifest/foundation/windows10/restrictedcapabilities"

and

<DeviceCapability Name="audioDeviceConfiguration"/>

this wasn't easy to find. Apparently MS doesn't like folks working with audio devices.