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Old 20th August 2008, 07:01 PM   #1
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Default perfect room for stereo?

hi

I have the possibility to make a new listening room for my stereo.

the room will be established in my old barn.

The barn is made of solide brick walls (not wood) with a 8 feet high
cieling that consists of small arcs each approx. 3 feet wide.

The room can be up to 17 feet wide and is 30 feet long.

That would be kind of a normal room with standing waves between the
two set of opposing walls. But hopefully not between the cieling and
the floor because of the arced cieling.

What if I made one wall 3 feet smaller. the wall behind the speakers
would be 17 feet. The wall behind the listening position would be 13
or 14 feet. The two side walls would still have the same length (There
would not be any 90 degree corners in the room) but they would not be
parallel anymore.

I would still have a standing wave between the two end walls but at a
low frequencie ( 19 hz ) and harmonics of that.

would it have a nice acoustic/sound??????

Will it not have any sound at all?

Can a room have a boring sound?

How does a round room sound? A triangular, hexagonal etc.?

Is there anything perfect?

Anything close to perfect that you can actually build?

best regards

Uwe
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Old 23rd August 2008, 09:44 PM   #2
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Default no ideas / opinions?

hi

nobody having any ideas suggestions or even opinions to have to make a good listening room from scratch?
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Old 24th August 2008, 06:08 AM   #3
es44 is offline es44  Denmark
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Sorry, no suggestions from here, but i can't help thinking how nice it must be to have such opportunity

Best regards, and good luck.
Ebbe
ps. oh yeah, off for Toender in a few hours
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Old 24th August 2008, 07:15 AM   #4
Nordic is offline Nordic  South Africa
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I don't know how much water it holds, but I think the golden ratio for 17' wide is 24' deep.
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Old 24th August 2008, 04:50 PM   #5
jcx is online now jcx  United States
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search: Loudspeaker forum, "room" in titles

gives 137 results

a couple of good sounding thread titles from 1st page of forum search:

Loudspeakers and room as a system

The Objectives of a Loudspeaker in a Small Room


Dr Geddes site has chapters from his Home Theater book online:

http://www.gedlee.com/Home_theatre.htm


additional search terms:

LEDE ( "Live End Dead End" )
room + acoustics
"early reflection"
"reverberation time"
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Old 28th August 2008, 05:36 PM   #6
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Default another shape than rectangular

I have searched for the subject on diyaudio

but most of the threads deal with already excisting rectangular rooms. not with making a room that is not rectangular'

best regards

uwe
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Old 28th August 2008, 06:28 PM   #7
chrisb is offline chrisb  Canada
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Default Re: another shape than rectangular

Quote:
Originally posted by heinz1964
I have searched for the subject on diyaudio

but most of the threads deal with already excisting rectangular rooms. not with making a room that is not rectangular'

best regards

uwe
Certainly, rectangular rooms are the easiest framing wise, and one can find any number of magical formulas for dimensions and treatment regimens borrowed from recording studios. But if you have the freedom to design outside of those parameters, rooms with the fewest parallel surfaces can manage will tend to cause far fewer acoustic problems.

Of course that's easier said than done.

At the very least if the ceiling can be raised above 10ft and lofted to cathedral angles you can mitigate much of the mid-bass floor bounce.

My main listening room is a teeny former basement bedroom, with a lower than usual ceiling and only slightly wider than 8ft. It's far easier to build a speaker that sounds good in a larger room, than to get this little room out of the way of even a small bookshelf or stand-mounted 2-way or fullranger.

OTOH, a buddy of mine has a very nice room that is not gigantic in terms of total floor space, but has a very highly vaulted ceiling (from just over 6ft on the front wall, to almost 17ft on the back wall) - floor to ceiling reflections are not an issue, and the room is wide enough ( L-shaped between 16 and 32ft) that the lowest frequencies in any of the music we ever listen to are quite effortless.
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Old 28th August 2008, 06:41 PM   #8
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Quote:
Originally posted by jcx


Dr Geddes site has chapters from his Home Theater book online:

http://www.gedlee.com/Home_theatre.htm


Hmmmm.... I would not recommend it.
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