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In Reply to: RE: What was your best tweak or change? posted by Edge22 on August 30, 2010 at 10:29:42:
David Aiken was just discussing this issue in the general forum:
"In my case, I know from personal experience that I can generate a more expansive soundstage by changing some of the absorption on the front wall to diffusion and I really like the effect that gives with symphonic music but I listen to very little symphonic music. What I listen to is mostly small group jazz and singers and using diffusion on the front wall not only destroys the superb imaging I get with good recordings but also does things like making singers sound like they've got a 2' or 3' wide mouth and I can't stand that result. If I listened mostly to symphonic music I'd be happy to live with the results of the diffusion. Basically my view is that the best treatment for a listening room is the treatment which gives the owner of that room the experience they prefer with the music they listen to. I've been in more than enough debates in threads here on AA over the years to have received ample proof that not everyone agrees with the way to go about treating a room or likes the same result."
His observation corresponds with research that shows that above a certain amplitude, early reflections add a pleasant sense of spaciousness, but also smear the image. See Fig. 7 in Toole, "Loudspeakers and Rooms for Sound Reproduction—A Scientific Review" -- I think you'll find it interesting, since it attaches useful numbers to this phenomenon and indicates that the smearing threshold depends on distance in what for me was a fairly surprising way:
http://www.harman.com/EN-US/OurCompany/Technologyleadership/Documents/Scientific%20Publications/13686.pdf
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Follow Ups
- RE: What was your best tweak or change? - josh358 10:40:59 08/30/10 (0)
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