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John Curl's Blowtorch preamplifier part III
John Curl's Blowtorch preamplifier part III
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Old 15th April 2019, 08:12 AM   #17211
RNMarsh is offline RNMarsh  United States
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Quote:
Originally Posted by stvnharr View Post
And for those who want to spend money and buy a box and do lots of measuring there is Home - DEQX
Deqx is fantastic.
I agree. It is fully automated to provide inverse correction. I used it to EQ my headphones with me wearing them. I was able to purchase a PRO version used by licensed installers

But, I still prefer near-field listening. Corrected near-field works very well.


THx-RNMarsh
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Old 15th April 2019, 08:48 AM   #17212
stvnharr is offline stvnharr  Australia
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Originally Posted by scottjoplin View Post
Isn't he talking about the same/similar method you use? Have you taken any measurements of your set up? I have emailed him
Just for the record, the answers to your questions are NO and NO.
What I do is related to what Stirling does, as he was the original developer of the Sumiko method.
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Old 15th April 2019, 09:09 AM   #17213
scottjoplin is offline scottjoplin  Wales
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Originally Posted by Jakob2 View Post
it needs the experience and listening skills to choose the right ones.
Are they measureable? Or does it only require a good sales technique or something else?
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Old 15th April 2019, 10:02 AM   #17214
Jakob2 is offline Jakob2  Germany
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Originally Posted by scottjoplin View Post
Are they measureable? Or does it only require a good sales technique or something else?
As Iīve mentioned that different treatments could lead to very similar measured results and therefore experience and listening skills are needed to choose the right ones, I donīt understand what specific measureability you are asking for?!

As said before, the reproduction system is given (mainly) and the room is given.
And we know that in most cases there arenīt enough measurements available that completely describe the behaviour of the loudspeakers, i.e. like complete polar graphs (or even balloon ones).

See for example something like the directivity index; letīs take two extreme cases, a loudspeaker only delivering a 360 degree soundfield in the vertikal plane and another loudspeaker only delivering a 360 degree soundfield in the horizontal plane, due to the definition of the DI, both wil have the same DI, but what to do with these speakers (although going to be used in the same room) will be quite different. I know, itīs a crude example just to illustrate the point.

We need a lot of measurements but our listening skills offer the advantage of a holistic approach, while the measurements usually only address certain parts of the "picture".
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Old 15th April 2019, 10:13 AM   #17215
scottjoplin is offline scottjoplin  Wales
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I understand your point. Also taking relevant measurement and interpreting them can be tricky. My question specifically was about measuring the experience and listening skills of someone.
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Old 15th April 2019, 10:58 AM   #17216
scottjoplin is offline scottjoplin  Wales
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Originally Posted by stvnharr View Post
Just for the record, the answers to your questions are NO and NO.
What I do is related to what Stirling does, as he was the original developer of the Sumiko method.
I see, thank you. That could explain why your didn't understand my questions, all along I was referring to the Sumiko method.
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Old 15th April 2019, 11:17 AM   #17217
Tournesol is offline Tournesol  Belgium
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Originally Posted by Jakob2 View Post
As Iīve mentioned that different treatments could lead to very similar measured results and therefore experience and listening skills are needed to choose the right ones, I donīt understand what specific measureability you are asking for?!
A lot of control rooms of big recording studios are designed by specialists acousticiens, as near everybody knows.
They all had made the same kind of studies, use the same methods and the same measurements. Very few are able to achieve "magic rooms", that is a fragile balance between dump and live. The material of the reflective surfaces plays an important role (The wood or the brick, for example) ad well as the form of their surfaces.
In a surprising way, looking at this page: Bob Hodas - Acoustic Analysis we can see that the speakers in this mastering room, called by Jim Hannon (The Absolute Sound) "The Best System I’ve Ever Heard in a Studio" are siting... in the corners.
Click the image to open in full size.
While lot of people think it is the worse place to put them ;-)

In France, the "Theatre d'Orange" is famous for being one of the outdoor theaters with one of the best acoustics in the world (I confirm and even for P.A.). However, it seems to me the Romans, who built it, did not have instruments of electro acoustic measurement.

Talking with one of the reputed acousticiens, specialists of studio acoustic design, he told me in confidence that, when he was hired to achieve the acoustic réalisation of an existing studio, he used measurements mainly to reassure its customers about the scientific seriousness of his work. But he could quite do without it. Experience and feelings.

Of course, that do not mean that, for us, less experienced people in this very difficult art, measurements are not of a great help.
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Old 15th April 2019, 12:04 PM   #17218
simon7000 is offline simon7000  United States
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And I take a camera, notebook, sound level meter and reverb meter to sales calls. But I usually know the needs in just a few minutes if observations.
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Old 15th April 2019, 01:17 PM   #17219
Max Headroom is offline Max Headroom  Australia
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Thanks T, some info for those who don't get it, especially about 31 Band EQ being inadequate.

Optimizing the Studio Listening Environment



Dan.
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Old 15th April 2019, 03:57 PM   #17220
Jakob2 is offline Jakob2  Germany
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Quote:
Originally Posted by scottjoplin View Post
I understand your point. Also taking relevant measurement and interpreting them can be tricky. My question specifically was about measuring the experience and listening skills of someone.
Ah, i see; at first i thought the "are they measureable" was related to the "choose the right ones" .

It is not only about "tricky" but that there simply is no measurement for the overall experience. Not to mention the (as often said in other threads) intersubject differences.

Difficult to say what constitutes the "expert status" but Iīd say itīs a combination of predictable results and satisfaction/happiness of customers.
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