[petegrif]

I tried this post under home theater general but didn't get any feedback

hoping someone can help me here


I have a room with the following dimensions

Length 22' 7

Width 12' 7

Height 13'


The only dimension I can really change is the height. It looks to me as if the room is a bit high and that the height and width are too close for good acoustics.

Should I lower the ceiling? Will it make a difference? if so by how much?


thanks

 

[mysphyt]

Your length is close to an even multiple of the width and height. Your primary room modes are 24.8 Hz (L), 44.8 Hz (W), and 43.5 Hz (H), since these are all close to being multiples of each other you will have spikes or nulls at common frequencies (like 90-100Hz) that will have to be addressed with careful speaker and listening position placement and possibly broadband or tuned bass traps. These problems are unlikely to be solvable with an equalizer only. Check out the spreadsheet downloadble from SGHT here. It will allow you to get some idea what changing the ceiling height and listening position will do to the acoustics of the room.

 

[petegrif]

mysphyt - that confirmed my suspicions and is super helpful

thanks so much



pete

 

[FrantzM]

Pete


please do read Floyd Toole Articles at this URL

http://www.harman.com/wp/index.jsp?articleId=122



Frantz

Port-au-Prince, Haiti