Home theatre Window and Door Location?

[Rama ravula]

If I need to have an operable window in my HT room what is the best place to have window , and least effect the Acoustics?

I am building a 6m x4m room,2.7m ceiling. a door on eastern wall , screen will be on Northern wall , planning a window on western wall -
Please advise the best location of the door and window so that it doesn't interfere with acoustic treatment of room .

 

[shadyJ]

You might try keeping those surfaces either behind the speakers or behind the listener, so that whatever the effects those surfaces have will be evenly met by both channels, instead of having one channel being more effected than the other, which would be distracting if it is severe enough to notice.