OK - I know there's no such thing. We live in Rice Miltary and although the neighborhood is great the freight-train noise is not so good. We have a new-ish home and I'm looking for ways to reduce the noise. We have the original builder-grade windows. Does anyone have suggestions for windows specifically designed to reduce noise or should I start with a thick acoustic insulating drape - similar to the ones they use in airport hotels? Thanks in advance.