windows – Create a virtual input device with physical inputs as source

I have USB interface (Tascam US 16×08) with 16 channels.
I want to create virtual inputs with the source of one or two channels of this device. My main problem is that I can not assign more than two channels of the device in UltraStar Deluxe. That's why I came to this solution.

Unfortunately, I have not found any software that can provide such functionality. I've already tried Virtual Audio Cable, but it only accepts output devices as a source.

Is there any software to make it work like this? Is there another solution to my problem?