I gave Ron a design for custom diffusers that match his wall paneling too.In your room, with your dipole planar speakers, I would diffuse the back wall (behind the speakers) with vertical RPG diffusors to keep the energy on the same hight it was radiated from the speakers.
I would NOT use horizontal RPG diffusors or skyline diffusors because they also diffuse the energy up and down (i.e. in all directions)
I don't want to "sell" you something, I just say what I would do in your situation
Agreed - imo the best approach is to engage the services of an acoustician, who can can take detailed measurements and then tailor room acoustic treatment recommendations to your specific situation (room, speakers, listening position, decor, budget, whatever).
I used to be an enthusiastic armchair-quarterback amateur acoustician, but since having been in several rooms treated by a professional (Jeff Hedback), I try to refrain from anything other than vague generalities. What a real pro can do, even from a distance using remotely-made recordings, leaves me in the dust.
By way of crude analogy and at the risk of over-simplifying, reflection and absorption and diffusion are sort of like inductance and capacitance and resistance in a crossover. With a crossover, the best results arise from having the right values of inductance, capacitance, and resistance in the right places. Likewise, with room treatment, the best results arise from having the right amounts of reflection, absorption, and diffusion in the right places. In both cases, the services of someone skilled in the art can make a very significant difference.
Problem is finding the right acoustician Duke, nearly 100% of the time when I do installations in so called "acoustician" designed audio rooms I end up tearing it down and often designing and building new acoustic accoutrements. Science of it pretty simple specially today but to find an artist with the needed experience and knowledge is very very very difficult!
david
In your room, with your dipole planar speakers, I would diffuse the back wall (behind the speakers) with vertical RPG diffusors to keep the energy on the same hight it was radiated from the speakers.
I would NOT use horizontal RPG diffusors or skyline diffusors because they also diffuse the energy up and down (i.e. in all directions)
I don't want to "sell" you something, I just say what I would do in your situation
Problem is finding the right acoustician Duke, nearly 100% of the time when I do installations in so called "acoustician" designed audio rooms I end up tearing it down and often designing and building new acoustic accoutrements. Science of it pretty simple specially today but to find an artist with the needed experience and knowledge is very very very difficult!
The house repair project has been an unfortunate combination of deepening project and temporal complications. It didn't help that we made major, complex changes midstream throughout the repair/renovation process -- exactly what I know you're not supposed to do.
And I think our contractors were not cut out for the depth and complexity of the project that it evolved into over time.
You must have met a competent one Duke ! Like almost every other profession the really good ones are very few and very far in between and since this is the What's The Best Forums 2nd best doesn't cut it !I TOTALLY GET what you are saying!! But I'm going to point my finger at conventional speakers, rather than at acousticians.
Most conventional speakers have lousy off-axis response which calls for absorption of at least some of the off-axis energy in order to "fix" them. But speakers which have well-behaved off-axis response don't need absorption to fix them, and so the reverberant energy can be managed in a way that allows it to decay more slowly, which contributes to liveliness and natural timbre.
You know what kind of speakers have this well-behaved off-axis response? Big horn speakers. You really oughtta give 'em a try some day.
;^)
Not too long ago I had the chance to try a pair of my speakers (medium-sized horn hybrids) in a room that had been professionally treated for conventional speakers. To my disappointment mine did not sound as lively as what I'm normally used to, and I think it was because the room treatment included considerably more absorption than my speakers were designed for.
So... taking out my broad brush and painting with it... and coming from a horn-ish background... I'm more inclined to fault "conventional speakers" for the issues they impose on acousticians, rather than the acousticians themselves.
I set up my room with great help of ASC, but for a large part it comes down to becoming intimately familiar with your own room and figuring out things on your own, step by step. It took me years to get it right, and get it right for my personal taste (sure, with my experience now I could achieve what I want faster if I had to do it over in another room, but it would still take me some time). No expert's work of a few days or even just hours can substitute for that, it's just not possible in my view.
It seems everyone has a different name for the walls in their room
The FRONT wall is the wall behind the speakers, its the front wall because as I'm listening, it's in front of me.
Likewise, the BACK wall is behind me, thus the back wall
Make sense?
Like any listening room there are good and bad mastering rooms and recording studios, professional doesn't mean dick today when anybody with a Mac and software is suddenly a recording "engineer" or recording "artist"!A lot of rooms built and 'professionally' treated wind up looking unrecognizable from the original concept after a few years of audiophile residency. I guess it's best to regard them as a good starting point perhaps. It requires telepathy to establish a target curve based on a particular audiophile's brain and expectations.
I do wonder about the various studios set up by professionals for recording and playback. Do they have the same raft of complaints as the audiophile spaces, or are audiophiles just more individualistic and phlegmatic?
Just wanted you to know that your post inspired me to remove some front wall treatments behind my Martin Logans - and for the better.Thank you, Christoph.
Based on my personal experience with dipole/planar speakers for over 20 years, I like to start by preserving as cleanly as possible the reflection of the back wave off of the front wall. So I start out with no diffusion, and certainly no absorption.
I'm not sure who said it first, but I read a good quote a few weeks ago that seems to apply.Like any listening room there are good and bad mastering rooms and recording studios, professional doesn't mean dick today when anybody with a Mac and software is suddenly a recording "engineer" or recording "artist"!
david
I don’t know who said it first either but it’s been around for a while and many have argued for and against it.I'm not sure who said it first, but I read a good quote a few weeks ago that seems to apply.
"One can hear everything measured, but NOT measure everything one hears"......
.....or words to that affect.
. . . Someone told me in this forum to take care of everything else before touching the front wall of dipoles, and it was wise advice.