Ok, this is cool. Except for energy bill.
I found finaly how to forward the HTC vive microphone to external line-out of the sound card. So in the future i can route everything first external and do the required things to the signal or just have a better feeling that sound is off. I need to dig a bit deeper. but the trick is in here.
Right-click on the volume icon and select Recording Devices
Double-click on your microphone
Select listen tab
Check the "listen to this device" box
Now i need a few small modifications. extra D/A converter to get it complete working.