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Audio Theory, Setup, and Chat > Advanced Room EQ, Acoustics and Optimization
Audionut11's Avatar Audionut11 11:52 PM 03-01-2014
Quote:
Originally Posted by 3ll3d00d View Post

what does it do?

I'm not entirely sure, but it appears to use some form of decorrelation.

As I mentioned in the REW thread, I like a dead room.
Also as mentioned, I currently cannot measure the effect of the plugin. frown.gif

Front with your scale


And with a larger scale



Rears could use more work.



Audionut11's Avatar Audionut11 10:14 AM 03-05-2014
Jim, I apologise in advance, I haven't had the time to read more then what you have posted.
Quote:
Originally Posted by jim19611961 View Post


It would appear to me, that the transition frequency is determined by the delay of the first reflections?
So the crossover frequency would be determined by the delay of the kicker, since it has become our first reflection?

In turn, this delay for the kicker, determines the spectrum, acoustical interference, sound quality and timbre, of the reproduced sound? Which, at least as represented in the image above, is heavily related to the room itself.

The boundary effects and room modes are a consideration of the room only.

So if we consider this.
Quote:
Originally Posted by jim19611961 View Post


With these reflections, they aren't generated by the room itself (not when using rear speakers, for sure), and hence, they shouldn't suffer from all the problems directly related to room issues (modes, boundary effects etc).
So it would seem prudent to me, to lower the frequency generated by the rear speakers, to gain an increase in envelopment.

Either that, or instead of trying to theorise about audio reproduction at 4am, I should just get some sleep instead.
jim19611961's Avatar jim19611961 12:45 PM 03-05-2014
Quote:
Originally Posted by Audionut11 View Post

Jim, I apologise in advance, I haven't had the time to read more then what you have posted.
It would appear to me, that the transition frequency is determined by the delay of the first reflections?
So the crossover frequency would be determined by the delay of the kicker, since it has become our first reflection?

In turn, this delay for the kicker, determines the spectrum, acoustical interference, sound quality and timbre, of the reproduced sound? Which, at least as represented in the image above, is heavily related to the room itself.

The boundary effects and room modes are a consideration of the room only.

So if we consider this.
With these reflections, they aren't generated by the room itself (not when using rear speakers, for sure), and hence, they shouldn't suffer from all the problems directly related to room issues (modes, boundary effects etc).
So it would seem prudent to me, to lower the frequency generated by the rear speakers, to gain an increase in envelopment.

Either that, or instead of trying to theorise about audio reproduction at 4am, I should just get some sleep instead.

The transition frequency is determined by the room size. That is, where the modal dominance of the room ends. Therefore, the kicker has no relevance to this. Notice the time delay ranges given. Therefore, when considering reflections <80ms, the 500hz and up range is what we are concerned with for the perception of spaciousness.

Envelopment as Toole is illustrating it doesn't happen in small rooms given the need for them to occur >80ms. Small rooms don't generate significant reflections >80ms.
Tags: Room Equilizer Wizard Rew
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