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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Re: Thanks for the note posted by morricab on December 31, 2005 at 10:27:25:
"Why is that? Is it because most of the distortion is largely 2nd or 3rd order harmonics? My guess is that most processes don't produce much in the way of high order harmonics like you find in electronics."Correct. The mechanical nature of the major distortion mechanisms prevents higher order nonlinearities and low orde ones are not audible. What is audible is diffrcation in varying degress with level making it sound like nonlinear distortion when in fact it is actualy nonlinear perception.
"Hmmm...its interesting that as a result of the implications from using your metric that you realized that a tube amp might sound better than a typical SS amp but didn't your ears also tell you this?"Nope - cause I don't spend any time worry about amps. Its a small effect.
"You have? Is it published somewhere? How many amps and what types? How many listeners? ABX or some other design? I would be interested in seeing those results."
It was never published it was an in house study and it was on total systems. I talk about it in my new book - chapters availabel on line.
"What I find really strange though, Earl, is that you are not denying the difference in audibility of amps. You even admit that there is a possibility that perhaps amps with particular design characteristics would likely sound better, precisely because the audibility of their distortion is less according to improved metrics for correlating distortion audibility and THD. Yet you still insist that it is not important when most listeners would disagree with you."
Yes, I believe that SOME amps CAN sound different. I don't believe that ALL amps DO and I still insist that amps can be obtained which have a negligable factor on sound quality. So in the big picture amps are not worth worrying about because loudspeakers can not be obtained which have a negligable influenece, or even a small influence, on sound quality (such that it needs to be ABX'd) so this is where I put my energies. Biggest bang for the buck sort of thing.
"if this is a constant then I would pose to you that changing the electronics will interject audible variations from that constant"
Correct for the most part except "will" should be changed to "can" because you cannot say that all electronics "interject audible variations", some do, some don't. And the presumption of the loudspeakers being a constant is like arguing about pennies when buying a car but not worying about the brand that your going to buy. It may make a difference but the difference isn't worth arguing about if your fixed on a crummy brand.
"It can't be all psychological self-delusion. "
Well actually it can and for the most part is.
You seem to be a classic case. (I don't mean to be derogitory - you have been polite and I appreciate that.) I present evidence and you present conjecture while continually holding to your previous views. The self-delusion comes from not being open minded to the uncomfortable reality of things. I'm not open minded because "I've been there and done that".
Earl Geddes
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Follow Ups
- Re: Thanks for the note - EGeddes 12/31/0513:47:20 12/31/05 (0)
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