You still have not answered my question as to what characteristics your window is transparent. What do you hear from that transparent system?
I think your notion of characteristics through the window is the problem.
See if this analogy helps. I'm imagining a tank of water. In the tank is Stevie Nicks, breathing perfectly normally and happy.
Excellent transparency would mean there is no color or dye in the water; no dissolved solids in the water to obscure Stevie when you look through the tank; no waves; no sand in the water; no blurring vibration -- just clear, crystalline, see-through water, nothing adulterating in anyway your ability to see Stevie.
Transparency is a singular characteristic. It is a spectrum with total blockage and opaqueness on one end and perfectly clear, see-through, crystalline clarity on the other end.
