Dirac New Spatial Room Correction Software

TLS Guy

TLS Guy

Seriously, I have no life.
Yeah, I even did my HT room per one of the Audio Engineering Society's Room Acoustic Formulas 1H: 1.57W: 1.87L

So if the Ceiling height is 14', then it's 14' H x 22' W x 26' L, which is the dimensions for my HT. :D

But according to other audio experts like the late Siegfried Linkwitz and Peter Aczel, many traditional rectangular rooms with carpets/area rugs, sofas, curtains, etc., will be just fine for rooms acoustics.
Yes, and buy and large Siegfried was against treating rooms and lauded reflection within limits. However he knew how to design decent speakers.

I think he would be having a royal fit right now, with the suggestion of thirty plus channels and speakers in a domestic situation, and add all that complex processing. It is gratuitous complexity. I'm sorry Gene and Matt, but that "pig" is not going to fly, and nor should it.

When I listened to some of those experts and profs, I found it hard to believe what I was hearing. I would love to have equal time with that crowd. That sort of impracticality needs some pushback.
 
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flak3

flak3

Enthusiast
An interesting and unique aspect of this technology is the fact it takes advantage of the capabilities of large floorstanders at low frequencies which is not the case when bass management is used for subwoofers.
The technology can make use of the energy from the main speakers in low frequencies as well when there is an overlap, rather than only depend on the subwoofers.
Also, at certain frequencies there will be more sources and this will offer more degrees of freedom to the algorithm so even a Stereo system with two subs will have four different sources of low frequencies.
 
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TLS Guy

TLS Guy

Seriously, I have no life.
An interesting and unique aspect of this technology is the fact it takes advantage of the capabilities of large floorstanders at low frequencies which is not the case when bass management is used for subwoofers.
The technology can make use of the energy from the main speakers in low frequencies as well when there is an overlap, rather than only depend on the subwoofers.
Also, at certain frequencies there will be more sources and this will offer more degrees of freedom to the algorithm so even a Stereo system with two subs will have four different sources of low frequencies.
That is a plus, and the way my system is designed. I have maintained here that crossing to subs with generic receiver/pre/pro crossovers is actually bad engineering.
 
VonMagnum

VonMagnum

Audioholic Chief
I'm not sure how this is supposed to work in an Atmos type system. I've got 17 speakers and three rows of seats in my home theater and one of the biggest problems is attenuation over distance of the mains to the back row and louder levels of rear speakers near that row to get even levels in the front row where the MLP is located.

I keep three "Smart Settings" for this. I've got optimized levels for the front row, the second row and a compromise between the two. The only way to further improve things was to create mixed arrays of the rears in ss#2 so they could help with levels closer to the front without having to play them as loud.

So how could you get levels even in the back and front except to use speakers not intended for those sounds (e.g. Side surrounds) to play content meant for the
L/C/R mains with delay to reinforce the sound over distance like you would for a live concert? The problem, of course is your system is no longer fully discrete and I'm afraid most Atmos fans wouldn't like that one tiny bit given some of the derision I've gotten over using arrays (as if they're evil; they make the experience better IMO for more seats, but this "discrete" obsession doesn't jibe with expectations.

Of course, maybe they're not addressing that at all with this system, just nearby frequency response, but that's relatively easy to deal with using conventional room treatments above Schroeder....
 
D

dlaloum

Audioholic Intern
This article reads like an advertisement. I am sceptical of the claim to make an EQ profile that will improve every seat. Also, shouldn't these things simply focus on the frequencies that are controlled by the room (Below the room transition frequency)?

And how is one room correction tech better than another? Audyssey, ARC, Dirac, etc. As long as they have enough filters to smooth out the frequency response for the main seat below the room transition frequency, what would be the difference from one to another?
It's not EQ - it's more like noise cancelling - yeah the overall package includes EQ, and time alignment, impulse optimisation...

But really what they are talking about here is more like what is achieved in Noise Cancelling headphones - Trinnov already do some very similar mathematical magic with their setup.... This brings that type of tech into the mainstream (ish) price bracket.
 
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