John Curl's Blowtorch preamplifier part III

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The discussions of power supplies and all the ways unwanted signals get into the signal path are far more productive.
I'm afraid we differ on our goals. (I do not worked for industry.)
As I don't know any system that is free from "unwanted signals" (i believe you mean 'distorted signals' ?), i concentrate on the ways to get the maximum of pleasure despite or thanks to their defects.
Nothing is perfect in our world. No mechanical part, no electronic component.
Lets use them for what they bring and assemble them with "taste".
That's how your favorite discs were recorded, including sometimes using these boring 5532 ;-)
 
Bill, I am not a programmer, okay. Not going to happen. We need ABX program that allows looping, and 1-button-no-looking A/B comparisons. We need to be able locate, and loop very short sections of audio. Location could be done with another program. Foobar ABX is close, it does allow one to type in starting and ending time offsets from the beginning of the files to select a segment to listen to. That works, but it does not have any way to keep looping without clicking a mouse on every loop while either looking at the mouse pointer on the screen or being extremely careful not to move the mouse. That's no good. We need a checkbox for continuous looping and no-looking-one-button-push A/B switching. That's probably about it. If there is anything else it would be a very minor adjustment to that.

I don't want to argue about it. If someone wants to see for themselves how it would work I can provide information on how to DIY a simulation in Reaper. Otherwise, if no disagreement, we just need to make it happen. (of course this only addresses the problem for recorded source comparisons, but its a start and enough to start changing attitudes about what can be proved to be audible)


Okay. How do the people who have no vested interest in preventing it from happening make it happen?
 
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Hi Tryphon,
Any deviation from being a "wire with gain" is distortion. You want to add as little as possible. So to add any kind of additional distortion to increase "listening pleasure" puts you out and away. What you want is a "niceness box", possibly with some controls and switches. Should be fun, but isn't what John normally applauds.

If you aren't a technical person Tryphon, try to learn, which will enrich your understanding of where most people are coming from. And yes, we listen with our ears, but have instruments to assist us in finding explanations for certain behaviors in sound equipment. Not having audio test equipment limits what you can do or what you can understand in audio. 'Tis how snake oil salespeople ply their trade.

-Chris
 
1-button-no-looking A/B comparisons.
What do-you mean by this ?
The goal of a blind test is to hide which brand you are listening to, in order not to be under any social influence. Right ?
But, comparing A to B is more efficient when you know you are listening to A or to B, because we can accumulate and verify our sensual experiences by the repetition. Concentrate on a subtil aspect we discover on one of them, to deeply analyse-it again and again.
It is not by chance that our senses of sight and hearing are so intimately connected.

For all the rest of your post: +1
 
Mark, I am thinking simpler than that. We cant even agree on a box with 2 or 3 paths through where people can listen to (say) straight wire, vs electrolytic vs film (or whatever). There would still be excuses.

Bill, I don't think excuses will be a problem. Some people will try it and find they can do quite well with it. Those are the people we are interested in. People who refuse to try can be ignored. Some of the ones who are ignored will probably give it a try at some point and find they can do quite well or not. Again, those that can do well are the people we are interested in.
 
What do-you mean by this ?

I mean you can open your eyes and see if you are listening to A or B at anytime, but you should NOT have to look to switch. Maybe you don't want to know which one you are listening to. If you don't have to look then you don't have to know. When you are ready to know then you can look. And you should not have to be distracted by looking when you don't want to.
 
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Hi Tryphon,
Any deviation from being a "wire with gain" is distortion. You want to add as little as possible. So to add any kind of additional distortion to increase "listening pleasure" puts you out and away. What you want is a "niceness box", possibly with some controls and switches. Should be fun, but isn't what John normally applauds.
That is not what i meant.
But, please, think twice, about your "wire with gain".
The only way to be as close as possible to the original design of a record (high fidelity ?) is to use a distorted and nonlinear reproducing system as close as possible to the one originally used in the mixing studio ;-)
 
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About blind tests, all the loops we use have to be carefully chosen to reveal a specific aspect we are looking at, all the loops we use have to be edited carefully in order to respect the rhythmic structure and the tempo.
Any error will procure a shock or a trouble to a listener with a minimal musical culture high enough to blur his listening accuracy.

It is such a work to prepare blind tests, if we want accurate answers, that some will understand why they are reserved to very important purposes like scientific statistics about the boundaries of human hearing.
Or to verify by yourself, from time to time, how much you can flaw yourself during non blind ... easier tests, the big suspicion of some here who accuse you for the benefit of the doubt, while they usually don't even try to verify by themselves. ;-)
 
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Bill, I don't think excuses will be a problem. Some people will try it and find they can do quite well with it. Those are the people we are interested in. People who refuse to try can be ignored. Some of the ones who are ignored will probably give it a try at some point and find they can do quite well or not. Again, those that can do well are the people we are interested in.


Well yes. If you ignore the capacitor sound believers then you are more likely to get an earnest ears only assessment :).
 
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I'm one of those subsidized (hahahahahah) Ph.D's, who struggles with theory and sits two feet firmly in the applied end of the world. But with a great respect for theorists/mathematicians.


Great respect for the effort and devotion and time and energy.... even cleverness. I just find not enough of all that man power and $$$ is being applied to the most important and pressing issues of our time.


THx-RNMarsh
 
I for one don't really care much about the camps of ABX stances (I've made my claim about ways they could be improved). It doesn't seem that important. If I were to hire anyone from this thread, they'd be paid to work on what was asked, whether they agreed or not on all the principles to be deployed.


Crap . Leaves me out.:(
Jn


Is that humor, or do you feel like you aren't the type to be as specific in language/content, unless you have to, when it boils down to actual work being done?
 
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Hi Tryphon,
I was employed during a decade as the "technical" manager of various post prod big companies.
Since you brought it up, in what capacity? Technical manager of what profession is what I am looking for. I am truly curious. I was also hired to work as a technical expert, mostly for electronics and electrical. Once by the government of Canada on the hacking of Direct TV. Given that "they" were the RCMP my wages were zero and my schedule completely out of my hands. But, I did have some information that could have been brought to bear on their problem. There's all my dirty little secrets I guess. Some anyway.
Do you think it was for the color of my eyes ?
Absolutely! What colour are they? Mine are dark blue.
Having said that, it's cunning on your part
Nope, an honest random event. I can't be described as cunning. One look at my life decisions would prove that fact beyond any reasonable doubt.

-Chris
 
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