Clean power for your.... SSD/HDD...?

Discussion in 'Modifications and Tweaks' started by Judeus, Jan 15, 2016.

  1. drez

    drez Acquaintance

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    And I could claim that what you are providing is not logically sound and therefore misinformation (to paraphrase: that a claim without technical explanation/support is automatically confirmation bias.) It could well be that my observations were the product of confirmation bias, however that is not determined by an absence of presence of technical explanation or evidence. That only determines the degree to which the observation is supportable from technical argument or usable data. The extent of scientific knowledge does not place limits on the universe - only limits on what we can explain, measure and reliably work with.

    So yes there are strong limits to the usefulness of claims without usable data or technical argument however anyone with half a brain should be able to determine this upfront and take this into consideration. The true misinformation would be to provide a half baked technical explanation, which is what I believe you are asking for.
     
  2. ultrabike

    ultrabike Measurbator - Admin

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    BTW an SDD proly consumes less power than an HDD.

    Also, I assume the SDD is always on, while the HDDs are USB (external) and not always draining your supply. Perhaps there is something there where your supply is being pushed harder when plugging the USB external drives.

    Maybe consider using a beefy USB hub to provide power to the external drive and release the strain on your computer LPS?

    It could also be that the layout of the board is not that great for USB interfaces and somewhat less noisy for the internal peripherals...

    All things considered though, if the motherboard and power supply are not fucked up, this should be really subtle. If any. I think I brought this up before, but not being shit faced or tired might provide an even more important improvement in sound performance.
     
  3. JewBear

    JewBear Almost "Made"

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    Half baked explanations? There's nothing half baked, it's clearly understood of digital data transfer works. You not understanding does not make it magically possible for bits to not be bits, for error correction to not work, and for noise to be magically created where there is none possible.
     
  4. JewBear

    JewBear Almost "Made"

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    Or the actual explanation that it's bias.
     
  5. ultrabike

    ultrabike Measurbator - Admin

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    Like I said in the post I edited above.

    Want more sound performance improvements? Don't be drunk. Or be drunk. Not kidding.

    (Forgot to mention. Do not buy a computer/laptop with BeatsAudio technology. It will f**k up the sound good).
     
    Last edited: Mar 1, 2016
  6. chakku

    chakku Friend

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    Can't you just put two identical music files on the SSD and HDD respectively then run those using foobar's ABX test, run it a few times and show how there's definitely a difference there? Even if subtle, if it's there and you can identify it then this shouldn't be a problem.
     
  7. drez

    drez Acquaintance

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    Actually that is exactly a half baked explanation - your argument is, if I understand correctly, that audible differences between storage devices are not possible because bits are bits, because there is ECC, and because differences in noise are not possible, and that all these claims are automatically valid and require no in depth explanation because "it's clearly understood".

    My argument is that I should not attempt to provide a technical explanation, because chances are it will be as deficient as yours.
     
  8. JewBear

    JewBear Almost "Made"

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    Yes, please do this Drez. Where do you live, I'm sure we can get someone to administer this test to you.
     
  9. jsgraha

    jsgraha 30% of my portfolio is magic beans - Friend

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    Yes, I think it's possible. And it's subtle.
     
  10. drez

    drez Acquaintance

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    To be honest, I have little confidence I could tell between drives in a blind test. What differences I believe I heard are very small (eg. between SSD and HDD and RAM drive) and in fact I generally don't even bother to use a RAM drive because the effort involved.

    In my experience, the kind of small, subtle differences such as I believe I have observed with storage devices are small enough to escape detection with most ABX testing - it is hard enough to blind test DS vs multibit DAC's.

    Honestly my advice would be don't bother with linear power to your SSD or HDD. Powering the whole system with a full linear ATX might be worth it with a dedicated music computer if you are crazy enough.
     
  11. sphinxvc

    sphinxvc Gear Master (retired)

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    Ahh, I don't think 'rebutt' works like that, unless you meant this.
     
  12. cizx

    cizx Friend

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    If you're really lucky, Tak, the older you get, the less certain you'll be about these kinds of opinions. If you're not, you'll become Analmort.
     
    Last edited by a moderator: Apr 1, 2016
  13. drez

    drez Acquaintance

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    To clarify my original post - when I write "beyond subtle" I meant "more subtle than subtle" rather than "not subtle"
     
  14. drez

    drez Acquaintance

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    Lol right you are...

    EDIT: " offer rebuttal to your post" fixed
     
  15. purr1n

    purr1n Desire for betterer is endless.

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    I don't want to see this thread devolve. I will say a few things.

    Correlation and causation are not the same. Sometimes it's an ancillary affect that is the cause.

    USB cables measured differently on the Grace m9XX. More than on other DACs. Point is so many factors and also who would have thought USB cables made a significant measurable difference.

    Keep an open mind. Blind testing is not a bad idea. However such tests should be designed fairly and actually allow the tester to distinguish differences.

    Some stuff is simply bullshit.
     
  16. OJneg

    OJneg The Most Insufferable

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    Just a thought, but software like Jriver has the option to play files from memory (presumably the RAM?) instead of disk. This seems like the best way to remove our HDD from the equation. But I've never done an experimentation here personally.

    It does seem to me that we want the point where we start transmitting digital audio real time and the point where it ends up (inevitably the DAC chip) to be optimized for performance, or else jitter and other timing issues will flow through the system.
     
  17. zerodeefex

    zerodeefex SBAF's Imelda Marcos

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    I'll give you my perspective so you understand where this is coming from: my job is to understand how people use computing devices so we can push computing platforms forward. I've had my ass kicked with regard to behavioral psychology and understanding how people learn about, perceive, and use the computers and devices around them all the time. As a huge f'ing nerd from childhood on (nerdy enough to have set up the first network at my elementary school while I was a student) and as the sucker who always has to fix everything electronic for everyone in my circle of friends and loved ones; my assumptions have had to be torn down over and over again and I still feel like I have a lot to learn about how people perceive technology.

    Which brings me to my point: you're missing the point. There is a shit ton of research that shows that everyone comes with assimilation bias when approaching new technology. The older you are, the more cruft you have to surmount in order to understand new paradigms. You make connections and assumptions about how technology works based off past experiences. Everyone does it. When you're younger, you are more likely to be able to actually understand something entirely new without applying much of what you've learned. Additionally, your foundational experiences with technology are more recent so the jumps required (if you do need something to relate to) to understand something new are much, much smaller.

    Also, THE VAST MAJORITY OF THE WORLD has not grown up understanding the instant access to information paradigm. It's very, very hard to wrap your head around this when your experience for decades and decades of your life was that you had to go to the library and pour through tomes in the reference section hoping to find the exact thing you were looking for. It's hard to unlearn that. Additionally, this actually is one of the biggest issues with the digital divide today: people who have grown up knowing that you can learn enough to be competent at most subjects by searching for those subjects online have a distinct advantage compared to their contemporaries who don't.

    Dude, you realize that your CPU does not access anything directly from disk; only main memory, on-die cache and internal registers? It doesn't matter where you store it, it moves into main memory before any operation can occur. You're drinking the computer audiophile kool aid a little much here.

    You never actually play from disk. This just makes sure you've loaded everything into main memory rather than it happening piecemeal.
     
  18. SSL

    SSL Friend

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    Well I think it would be prudent to leave no stone unturned, if we want to embrace the whole open mind thing.

    I think it's a good idea to compare different types of flash storage - TLC vs MLC vs 3D TLC. Different programming times of the NAND ought to change the invisible information that hides in the bits that aren't.

    ECC vs non-ECC memory is a no-brainer, as well as RAID 1; too many bits getting flipped due to read errors could be a problem. Data can only last for so long on any storage medium before it is irrevocably corrupted.

    Presumably RAM, but who knows these days. In any case, the argument seems to be that the badness can seep in even then; once the nasty, spinning HDD, switched-PSU corruption makes it into the data there's no getting rid of it. Scary, when you think about it.

    Sure, jitter and noise shouldn't matter when the bits are still at the stage where there is no time domain, but that is just objectivist drivel; clearly doesn't line up with real experiences of real people.
     
  19. drez

    drez Acquaintance

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    Yep I understand that. By all accounts this falls under the "it should not make a difference but for some reason it appears to" category. I would like to think that if my ears disagreed with what some n00b on audiophile kool aid posted I would work it out. I have done so with many useless tweaks over the years.
     
  20. OJneg

    OJneg The Most Insufferable

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    Yes, that's what I suspected. Presumably if it's a real-time process any jitter induced by the HDD mechanism will flow through the system. Just like it would with a CD transport mechanism, no?
     

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