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How transfer system mic audio stream to attached external sound card mic audio stream

Jul 8, 2016 at 3:45 AM
I am trying to attach USB device used for tele calling which have pnp sound controller for mic and speaker. Now i have two speaker and two mic for input output as shown in image below.
speaker mic Now my motive is to transfer audio stream from system mic to external sound card mic and from external sound card speaker to system speaker.

What can be the possible solution that can be attained using c#.

I don't have knowledge about this, so don't know how to start.
Jul 21, 2016 at 7:10 PM
Not really easy to do in C# I'm afraid. The WasapiLoopbackCapture class can capture all sound being sent to a device, so that could be used to route it to another (with a small amount of latency)
Other solutions include purchasing a virtual audio cable piece of software