basic room accoustics..help design my ht room :)

JinMTVT · 4th September 2007, 04:41 AM

As a few of you know,
i am in the process of building a new house,
wich will contain a few different audio systems.

One of wich is my HT room in the basement...

Now i need help for the room itself!
i have a 26' by 20' square space for it,
and i can do almost anything "crazy" i want with the walls

please keep in mind the following:

- surround system will consist of nearfield line arrays,
and an IB sub bass array of a few 18-21"

- house is build completly with ICF
( foam isolated concrete walls and ceiling on this room)
and i would like to do the walls with this material

- front screen width is of 100", so it require a minimum of front size for screen + mains + subs

here is a picture of a quick layout of what would be a possibility ...

i'd also like advices on possible reflection treatments ..

planet10 · 4th September 2007, 05:19 AM

26 x 0,618 = 16
16 x 0.618 = 9.9

Do you have room for 9' 10" ceilings

(9.618:1:1.618 is the AES recommended room dimension ratio....

dave

JinMTVT · 4th September 2007, 05:23 AM

9' ceiling for the front half
8' ceiling for the rear half

what about those AES measurements?
i don't quite understand the ratio you are quoting

i knew that you'd be the first to reply to this thread Dave

what do you think of the small angles i gaved to the walls in this quick sketch ?

planet10 · 4th September 2007, 05:47 AM

Quote:

Originally posted by JinMTVT
[B]9' ceiling for the front half
8' ceiling for the rear half

average ceiling = 8,5 x 1.618 = 14.25
14.25 x 1.618 = 23

So your avaerage dimensions should be 23x14.5 x 23

That leaves a whole bunch of unised space --- use it for your woofers or...

almost as good

8,5 x 1.732 = 14.75
14.75 x 1.732 = 25.5

(still leaves ~850 ft^3 for woofers)

Quote:

what about those AES measurements?

AES did a study to figure optimal ratio of LxWxH and ended up with a classic golden ratio box.

Quote:

what do you think of the small angles i gaved to the walls in this quick sketch ?

Angled bits are good.

dave

sreten · 4th September 2007, 12:35 PM

http://www.bbc.co.uk/rd/pubs/archive...icpractice.pdf

Hi,

might give you some ideas, angled walls reduce flutter echo,
may not be needed depending on the acoustic treatment.

/sreten.

4th September 2007, 04:41 AM	#1
JinMTVT diyAudio Member Join Date: Jul 2004 Location: MTL	basic room accoustics..help design my ht room :) As a few of you know, i am in the process of building a new house, wich will contain a few different audio systems. One of wich is my HT room in the basement... Now i need help for the room itself! i have a 26' by 20' square space for it, and i can do almost anything "crazy" i want with the walls please keep in mind the following: - surround system will consist of nearfield line arrays, and an IB sub bass array of a few 18-21" - house is build completly with ICF ( foam isolated concrete walls and ceiling on this room) and i would like to do the walls with this material - front screen width is of 100", so it require a minimum of front size for screen + mains + subs here is a picture of a quick layout of what would be a possibility ... i'd also like advices on possible reflection treatments ..

4th September 2007, 05:19 AM	#2
planet10 diyAudio Moderator Join Date: Oct 2001 Location: Victoria, BC, NA, Sol III Blog Entries: 4	26 x 0,618 = 16 16 x 0.618 = 9.9 Do you have room for 9' 10" ceilings (9.618:1:1.618 is the AES recommended room dimension ratio.... dave __________________ community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA

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4th September 2007, 05:23 AM	#3
JinMTVT diyAudio Member Join Date: Jul 2004 Location: MTL	9' ceiling for the front half 8' ceiling for the rear half what about those AES measurements? i don't quite understand the ratio you are quoting i knew that you'd be the first to reply to this thread Dave what do you think of the small angles i gaved to the walls in this quick sketch ?

4th September 2007, 12:35 PM	#5
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	http://www.bbc.co.uk/rd/pubs/archive...icpractice.pdf Hi, might give you some ideas, angled walls reduce flutter echo, may not be needed depending on the acoustic treatment. /sreten.

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