Ambechoic iRoom MyRoom

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Ambechoic iRoom MyRoom

Postby Bob » Wed May 27, 2015 4:03 pm

Two interesting papers.
The first looks like a list of the RPG product line, but at page 57 they show their modex corners with skyline everywhere else, iRoom.
The latter is the more interesting of the two, with a pass through diffuser with a broadband absorber behind it, used everywhere.

Jonathan DA wrote:
My totally unqualified opinion is that as you add more speakers to more surfaces, you reach a point where you want a consistent behavior throughout the room. D'Antonio (of RPG fame) coined the term Ambechoic to describe a room that uses massive diffusion to create an almost-instant 30dB drop in the ambient sound field vs. the direct sound reaching your ears. It would seem that this would be an ideal environment for virtually any surround sound speaker arrangement. You can see his presentation slides about it here: ... Design.pdf

As you can see from the Blackbird Studio example in the document, achieving an ambechoic room requires a crazy amount of space and money. The iRoom design in the document might be a decent approximation (I've never heard one, wouldn't know for sure). Another approach to achieve similar results is the MyRoom design method that Bogic Petrovic and Zorica Davidovic developed. It achieves similar goals to the Ambechoic design, but uses less space and is considerably cheaper. ... _paper.pdf
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Re: Ambechoic iRoom MyRoom

Postby bert stoltenborg » Sun May 31, 2015 7:20 pm

What is a pass through diffuser?
If I get you right this doesn't have a back?
So it will not reflect sound and thus will not diffuse anything?
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Re: Ambechoic iRoom MyRoom

Postby Bob » Tue Jun 02, 2015 8:26 pm

bert stoltenborg wrote:If I get you right this doesn't have a back?

See page 6 of 17 in the PDF.

It's built like a MLS QRD without a back, but instead of the back is a 'wideband absorber' (presumably several inches of porous insulation or hangers), then a gypsum wall.

The author of the paper makes some comments as user "boggy" at ... esign.html
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Re: Ambechoic iRoom MyRoom

Postby Ido » Mon Jun 22, 2015 12:57 pm

Regarding ambechoic: putting aside it's potential mind blowing factor (and I'd be happy to be there to get a feel), I say if it requires training or adjustment of the ear/senses, there's an inherent problem in the concept.
I'm all for the natural and pleasant.
Btw, how are the mixes that come from there?
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Re: Ambechoic iRoom MyRoom

Postby andrebrito » Sun Jul 26, 2015 7:31 pm

Not sure about how it translates to mixes, I understand the main idea to keep the room alive and more similar to a typical listener's situation. Still not quite the same thing lol - room acoustics projects and diffusers
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