• Techniques
  • Acoustic treatment for a 12X14 room (p.8)
2013/08/27 13:45:45
The Maillard Reaction
Hi Starise,
 Yes.
 If I can I will move speakers and see what happens, If I'm in a studio setting I'll move absorbers and diffusers and see what happens, If I'm in a live setting I'll start working with the EQs, If it's a large P.A. I'll consider the need for delays.
 I do it in that order. ( sometimes the need for delays is so obvious I start there )
 
 You can easily see if you are making things better or worse.
 
 If you use the RTA while moving stuff around you'll see how easy it is to make things worse and you may grow to appreciate two things.
 
1) It is more accurate than "me".
 
2) It is surprising how bad things can be while I can still get good work done.
 
 Some of the really fancy, active crossover multi amp stuff can do a lot of that automatically, then test the results and do more stuff automatically.
 
 You can work towards a goal of making as much of the listening area a good listening spot as possible.
 
 
 Re: The results I have spoken of. Those guys don't seem to hang out here anymore. I'd prefer to ask them to report their findings first hand rather than contribute hearsay. I am hoping drewfx1 will do it for us someday.
 
 all the best,
mike
 
 
 
 
2013/08/28 11:27:38
Starise
 
 Thanks Mike.
 
 I would guess the outcome of such an experiment would be interesting to see. 
 
 Most audio equipment reviews get sparse treatment when it comes to in depth analysis of the equipment spec. Some exceptions are high end audio amps and pre-amps which are occasionally set up and looked at to see if they perform to the claimed spec.
 
  On the few reviews I have read on  ARC2, the reviews are about the end result to the ears and in the translation on other systems. No real in depth scientific review has come along as far as I know.
2013/08/29 12:44:18
wst3
I'm not trying to stir the pot, but for those that are interested, Dave Gunness has published a few papers about the Fulcrum Audio TQ process, which addresses temporal problems at the loudspeaker/space boundary. Interesting reading...
2013/08/29 13:52:00
Starise
 Hey Bill, why not stir the pot? Sometimes the soup tastes better. Thanks! I'll check it out.
2013/08/29 14:01:33
wst3
That's "Chef Guillaume" thank you!
 
If you have ever gotten tangled up with "line arrays", "steerable arrays", "point source arrays" or any of the other buzz words you might want to read about his thoughts on the topic. He is a very smart feller!
2013/08/29 14:11:37
drewfx1
wst3
I'm not trying to stir the pot, but for those that are interested, Dave Gunness has published a few papers about the Fulcrum Audio TQ process, which addresses temporal problems at the loudspeaker/space boundary. Interesting reading...




Here's a link:
http://www.fulcrum-acoustic.com/technologies/whitepapers.html
 
I'm not sure that it's stirring the pot though, as I didn't see anything particularly surprising to me there (in the brief reading I did). 
2013/08/29 14:37:50
bitflipper
Great link, Drew! Looks like there's lots of interesting stuff there.
 
I just finished reading "The Design and Implementation of Line Arrays Using Digital Signal Processing", which helped me understand steerable arrays better. I once tried to query a line-array vendor at NAMM about how they work, and he pretty much just said "it's digital". "Digital" apparently being a synonym for "magic". How they can do that without totally screwing up the sound does seem like some kind of magic, I have to admit.
 
I also bookmarked the "Controlling Loudspeaker Coverage" article, a simplified introduction intended for a broader, non-technical audience.
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