Window Behind Monitors

[APP]

Hey folks,

I've tried searching for something on this but it's a bit too specific. Any advice would be much appreciated...

What is happening to the low end coming from behind my monitors (w/ ports) as it hits the 4' x 4' window (regular double pane) behind them, about 14" away?

Should I be treating the windows with low/broadband absorption first or would the wall (sheetrock > external) on either side of it be just as good (or better)?

My hunch is that bass is perhaps leaving the room through the window much more than it is through walls, so I should treat the walls first. Can anyone confirm or deny this?

Thanks in advance,

APP

P.S. All corners / early reflections are treated!

 

[snellular5]

I dont know much about this but all the studios that I've been in that have a window behind the monitors have the window on a slant so you dont get the reflections right back at ya

 

[Ethan Winer]

What is happening to the low end coming from behind my monitors (w/ ports) as it hits the 4' x 4' window (regular double pane) behind them, about 14" away?

Some of the sound passes through, and some is reflected. How much of each depends on the frequency. The thicker the glass, the lower it reflects to.

Should I be treating the windows with low/broadband absorption first

Probably not. See this:

Front Wall Absorption

All corners / early reflections are treated!

All 12 corners?

--Ethan

 

[Rod Gervais]

My hunch is that bass is perhaps leaving the room through the window much more than it is through walls, so I should treat the walls first. Can anyone confirm or deny this?

APP,

If it was really doing what you think it's doing - then you would not be having the problem you are having.

sounds to me (pun intended) like SBIR (speaker boundary interference response) which will cause a dip in Low Frequencies at the listening position..

I would mount a pair of 4" rigid fiberglass treatments directly behind the speakers - mabe 6" wider than the speaker (on each side - so 1' wider - 1' taller than the speaker cabinet itself) and only a couple of inches away from the back of it.

Mount these on stands - that should cure your problem.

Rod

 

[APP]

Folks,

Thanks for your replies. I was more curious about the science behind it then it being a problem for me, but I will try your suggestion, Rod. Sounds really good.

APP