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Merv's Politically Incorrect Audio Blog

Discussion in 'SBAF Blogs' started by purr1n, Dec 26, 2018.

Page 178 of 250
  1. Armaegis

    Armaegis Friend

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    Ugh, the metamaterials name was originally intended for use in the ultra high frequency signal stuff, not audio. Where they used the maze like structures of greatly varying lengths since they were dealing with wavelengths that were so minuscule you could actually construct diffusion/refraction/etc structures that were in the proper order of magnitudes to absorb and interact with the relevant frequencies. In the audio band, it's impossible to do this "metamaterial" thing because that would require structures the size of your bedroom.

    All this claptrap is just fancy shaped foam that's trying to piggyback on some scientific papers and principles that people are missapplying. Yes the foam changes the sound, but not for the "metamaterials" reason.
     
    Armaegis, Dec 23, 2021
    #3541
  2. bilboda

    bilboda Florida boomer

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    How the fauc would you know?
     
    bilboda, Dec 23, 2021
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  3. Beefy

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    Beefy, Dec 23, 2021
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  4. Pancakes

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    DC had the actual "tuner" or whatever they're calling it on some video. It looks pretty solid. I'd be curious to know if it's the same material used in the LS50. But it could also have been a 3D printed piece just for show...
     
    Pancakes, Dec 23, 2021
    #3544
  5. purr1n

    purr1n Desire for betterer is endless.

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    C'mon dude. You know we don't buy into this kind of marketing speak on SBAF.

    I don't mind you mentioning it in passing, but unless you know something about how this works, don't equate with the KEF meta pad or any other working tech with claims of novelty. That internal speaker pad stuff has been around since the beginning of time. I've seen primitive versions inside Linn speakers and DIY methods for back loaded horns where the driver is just a few inches from the back of the internal horn. In fact, Madisound used to and probably sells something like this, probably a more effective version.

    What I'm getting at is don't bother mentioning Acoustic Metamaterial Tuning System, Continuity, Bitperfect, True Multibit, Nested Composite Feedback Amplifier, Fazor, unless you really understand its underpinnings and most of all, know its effect on sound. I'm already getting PTSD from that Topping fuckhead who berated my ignorance: "What, you don't understand what NCFA means? " This when I've had such an amp, parts on a broadboard, next to my bed 15 years ago as my primary headamp - I just wasn't smart or dumb enough to name it NCFA - essentially because it was copied from a datasheet or based on the META42. Seriously, this is why I HATE this shit, when ways to solve a problem are given fancy names and marketed as scientific wonders and discoveries.

    All this marketing shit is cringy. Heck, I've given Jason shit about it too even though I know he does it in a tongue-and-cheek kind of way. I even jokingly suggested to Jason that his approach to addressing the transcendence doubling issue with transistors should have been called Evenflow (based on the Pearl Jam song). Even flow, get it? Haha.

    Don't been a tool for manufacturers' marketing. Well, not unless until we can confirm it sounds like something, sometimes for the better, sometimes for the worse.
     
    Last edited: Dec 24, 2021
    purr1n, Dec 24, 2021
    #3545
  6. Hands

    Hands Overzealous Auto Flusher - Measurbator

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    Who needs tape mods for Grado pads when you can use splooge mods?
     
    Hands, Dec 24, 2021
    #3546
  7. purr1n

    purr1n Desire for betterer is endless.

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    Only if I can name your splooge tech as the latest in scientific discovery and give it a fancy trademarkable audiophile marketing term. Perhaps a pORNhUB YouTube video to demonstrate your material's effectiveness?
     
    purr1n, Dec 24, 2021
    #3547
  8. purr1n

    purr1n Desire for betterer is endless.

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    Meta sounds cool. KEF uses Meta. Facebook is Meta. Superheros are Meta. Meta also sounds a lot better than Hands Spooge and slightly better than NCFA, the National Fastpitch Coaches Association.
     
    purr1n, Dec 24, 2021
    #3548
  9. philipmorgan

    philipmorgan Member of the month

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    The real problem is scaling the innovation/prototype into mass production.
     
    philipmorgan, Dec 24, 2021
    #3549
  10. purr1n

    purr1n Desire for betterer is endless.

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    We'll have to get our @Hands to work.
     
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    purr1n, Dec 24, 2021
    #3550
  11. Hands

    Hands Overzealous Auto Flusher - Measurbator

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    I would be offended if you tried to do any less.

    Going to need some sort of assembly line process to make this work...
     
    Hands, Dec 24, 2021
    #3551
  12. Pancakes

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    I don't remember marketing anything. I've never even heard a DCA. I commented on what it appears to be based on the manufacturer's comments/description/naming. Is it what they claim or acoustically worth a f**k? No idea. Maybe DCA is full of shit and somebody can feel free to sue for false advertising.
     
    Pancakes, Dec 24, 2021
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  13. Armaegis

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    Ok I know we're all ranting against meta, but this is a primo callback to the olden days of the hobby.
     
    Armaegis, Dec 24, 2021
    #3553
  14. Pancakes

    Pancakes Friend

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    Seriously, if my comment looks like an advertisement, then I probably didn't convey my thoughts well. It was supposed to be something akin to "they claim it's metamaterial (similar to KEF Meta?) but used as an absorber/filter rather than just absorber".
     
    Pancakes, Dec 24, 2021
    #3554
  15. Armaegis

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    The KEF meta isn't really a metamaterial either, but I blame them for putting this new buzzword into the audiophile lexicon.
     
    Armaegis, Dec 24, 2021
    #3555
  16. purr1n

    purr1n Desire for betterer is endless.

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    I blame audiophiles for being stupid.

    [​IMG]
    KEFmaze.jpg
     
    Last edited: Dec 25, 2021
    purr1n, Dec 24, 2021
    #3556
  17. Tachikoma

    Tachikoma Almost "Made"

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    Acoustic metamaterials have been around for a few years now, and they have much more important applications (read: military) than audiophoolery.

    https://phys.org/news/2019-03-acoustic-metamaterial-cancels.html

    The cancellation they are getting is well within the audio band.

    Now, I don't know whether DCA is in fact, using an acoustic metamaterial, but I wouldn't be so quick to rule it out.
     
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    Last edited: Dec 25, 2021
    Tachikoma, Dec 25, 2021
    #3557
  18. purr1n

    purr1n Desire for betterer is endless.

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    Micropore tape is a metamaterial.
     
    purr1n, Dec 25, 2021
    #3558
  19. Thad E Ginathom

    Thad E Ginathom Friend

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    Oh well, that's it then. I'm allergic to micropore tape. So no metamaterials for me...

    ;)
     
    Last edited: Dec 26, 2021
    Thad E Ginathom, Dec 25, 2021
    #3559
  20. Pancakes

    Pancakes Friend

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    The Wikipedia definition (don't know if/how it differs from research papers) says a metamaterial is any material that has properties not naturally found in nature. I'm not sciency enough to know which properties those are but I can think of plenty of natural materials that absorb soundwaves...so I guess DCA and KEF are indeed bsing.
     
    Pancakes, Dec 25, 2021
    #3560
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