Set active audio endpoint

Question

I want to set the active audio endpoint/output device, in the best case process-/application-specific. I know roughly how to read out the endpoints using:

1. EnumAudioEndpoints
2. MMDeviceEnumerator
3. ManagementObjectSearcher (SELECT * FROM Win32_SoundDevice)

But I don't know how to activate them/set them as the current output device. Like I mentioned above I would like to do it process-/application-specific. I more or less found how to do it with PowerShell but not with C#.

Answer 1

It is done with IPolicyConfig.SetDefaultEndpoint (samples on Google)
But it is global, not application specific