Interesting.
How was the rest of the room treated? Did they show an ETC?
What result will you get if you have a highly diffuse soundfield from behind.
The "preference" way is futile in many ways IMO. There will be so many variables.
When it comes to accuracy (to the recording/mix) it's really a straight road and combining it with a diffusive spacious soundfield, it's sounds great too.
Audyssey MultiEQ XT32 pro? Room correction simply don't work from a perspective of a high standard. You can EQ the speakers, but not the room.
Well, in some cases you can, to some extend. In such cases it will improve the situation.
Did you read the Dirac paper?
Minimum phase and "linear, time-invariant" are different things. Pretty sure a room response is linear and time-invariant.
Well, it is certainly linear.
Over a reasonable range of levels, if I double the input then I double the output. No spectral components that were not in the input will be at the output.
Now the output components may have phase shifts and amplitude shifts. That's okay since those shifts are both perfectly fine linear operators.
Room acoustics is linear. Time invarient is less clear and depends on to what order one means this statement. There will be thermal changes to the speed of sound that will vary in time as currents move about a room, but for the most part these can be thought of as "small". "Negligable" requires that we be clearer in what we are looking at. The fine structure of a room FR at higher frequencies, while being random, is not necessarily stationary. Over some bandwidth it will be to any degree that one desires however.
I found this paper incomprehensible. I said that here before and asked if anyone could explain the metric that they were using to me, and why it is believed to be pertinent. I just could not see how it was used or how it was relevant.
What Markus means, and there is some truth to it, is that the answers aren't know by anyone, not that SMPTE engineers don't know what is known.
Because what you claim above is difficult to impossible to do. Our hearing is anything but infallible.
The people that you talk to certainly differ from the ones that I talk to.
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gedlee,
How do we relate one speaker systems in room response to another. There are just to many different setups and polar responses are all over the map. While you are using a combination of waveguide and direct radiator that is one thing, and then horn loaded top to bottom is another and then the characters with omni speakers have a different view on things. I brought up the recording studios that I am most familiar with and the monitors have been soffit mounted around a very reflective surface, the window into the musicians studio and the dead end would be behind you. I know that acoustic design of a room does have rules that can be followed but to say one size fits all of these different situations is hard to imagine. In wall speakers will use the front wall as a 180 degree waveguide as you have mentioned before, or as close to an infinite baffle as we are going to get. Would you dampen the wall with this type of installation? I just can't make blanket statements about how a room should be set up, it just seems dependent on many factors that you must first recognize before you can answer that type of question.
How do we relate one speaker systems in room response to another. There are just to many different setups and polar responses are all over the map. While you are using a combination of waveguide and direct radiator that is one thing, and then horn loaded top to bottom is another and then the characters with omni speakers have a different view on things. I brought up the recording studios that I am most familiar with and the monitors have been soffit mounted around a very reflective surface, the window into the musicians studio and the dead end would be behind you. I know that acoustic design of a room does have rules that can be followed but to say one size fits all of these different situations is hard to imagine. In wall speakers will use the front wall as a 180 degree waveguide as you have mentioned before, or as close to an infinite baffle as we are going to get. Would you dampen the wall with this type of installation? I just can't make blanket statements about how a room should be set up, it just seems dependent on many factors that you must first recognize before you can answer that type of question.
I think we can only go with what is known Dr. Gedlee, and not be paralyzed by what is not known. We know more about the space above us than the ocean below us, but does that stop us from exploring the ocean?
I don't think so.
Have you tried it and confirmed this to be true, or are you postulating your own personal theory?
What you are suggesting here is that USC wasted $6 million dollars and a decade of reseach just for nothing. And without proof this is true, then one can just swipe away your comments as just an untested theory.
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"Have you tried it?" Haha. Subjectivism at is best.
I'm tempted to quote someone who described this better then I can.
If you keep this up I'm going to start asking the mod.s to remove any of your posts that make subjective claims - and you have more than a few that do this.
He has a *preference*, several share his *preference*.
You have a *preference*, several share your *preference*.
Under-cutting his preference by suggesting that his own experiences betray him is utterly pointless and inflammatory, and far more than a little hypocritical.
I would guess my subjectivism is far better than your complete ignorance and unproven theory.
Since I do many measurements before Auddyssey is applied, I can verify if it does as advertised. If it failed, then Sim3 would easily point this out. In 8 years of using Auddyssey, I have not personally seen it fail, unless the microphone was miscalibrated at the factory. Which is why we use three tools instead of just one alone. I have said this before.
All you have presented here is an opinion. I see no testing information to support this opinion, so like butts, it is just another one.
If by room response do you mean the steady state response? I don't put much emphasis on that measure. I look at the speakers anechoic response along the listening axis to get an idea of what the direct field response will be. Then I look at the power response and polar response to determine what the reverberant field response will be.
The room is dominate at LFs, but it is not actually a huge factor at frequencies above the modal region. The early reflections are an issue, but beyond that mostly "rooms are rooms".
Which end to dampen? I see logic in the front wall behind the speakers, I see no logic to the rear wall behind the listener (unless this wall is close, then yes, damping of this bad situation is your only option.)
I don't base any design criteria on "personal" or "individual" subjective opinions. They are much too unstable.