SH Spotlight I was asked "Why do recordings need compression/limiting during recording, mastering?"

Discussion in 'Music Corner' started by Steve Hoffman, Dec 13, 2016.

  1. mavisgold

    mavisgold Forum Resident

    Location:
    bellingham wa
    No Yolk! Scientists Unboil an Egg Without Defying Physics

    No Yolk! Scientists Unboil an Egg Without Defying Physics

    By Tanya Lewis, Staff Writer | January 28, 2015 11:41am ET




    Think you can't unboil an egg? Think again, scientists say.

    Credit: Steve Zylius / UC Irvine

    Scientists have figured out a way to do something that seems impossible: unboil an egg. But strange as it may sound, the feat doesn't defy basic laws of science.

    When you boil an egg, the proteins unfold and refold into a more tangled, disordered form. But in a new study, a group of researchers found a way to pull apart the proteins in cooked egg whites, and allow them to refold into their original shape.

    The finding could dramatically reduce the cost of cancer treatments and food production, the scientists reported yesterday (Jan. 27) in the journal ChemBioChem. [Science You Can Eat: 10 Things You Didn't Know About Food]

    "Yes, we have invented a way to unboil a hen egg," study co-author Gregory Weiss, a biochemist at the University of California, Irvine, said in a statement.

    In their experiment, Weiss and his colleagues started with an egg white that had been boiled for 20 minutes at 194 degrees Fahrenheit (90 degrees Celsius), until its proteins became tangled clumps. Then they added a substance that ate away at the egg white, effectively liquefying it. Next, they used a machine called a vortex fluid device, designed by Weiss' colleagues at Flinders University in Australia, which used the shearing forces in thin, microfluidic films to shape the egg white proteins back into their untangled form.

    Physicists often use cooking eggs as a metaphor to explain the second law of thermodynamics, which states that the degree of disorder, or entropy, in a system of the universe will always increase. For example, once you scramble an egg, it's basically impossible to separate the yolk from the egg white again, because it would be going from a less ordered state to a more ordered one.

    At first glance, Weiss' experiment may appear to defy this law, because an unboiled egg is more ordered than a boiled one, so the entropy should be decreasing. But in fact, the process of unboiling the egg produces entropy in the form of heat, offsetting the decrease in entropy, Weiss told Live Science. So the entropy of the universe still increases, he said.

    Physics aside, the unboiling technique could be useful in a lot of pharmaceutical and biomedical applications, the researchers said. Proteins often "misfold"into useless shapes when they are formed, but if scientists could refold them again, it could save money for drug development.

    Traditional methods of recovering the misfolded proteins are expensive and time-consuming, Weiss said. By contrast, his unboiling technique takes only a few minutes — thousands of times faster than what was possible before.

    For example, drug companies often make cancer antibodies in expensive hamster ovary cells, because they don't often create misfolded proteins. If, instead, these companies could use proteins from cheaper yeast or E. coli cells, it could make cancer treatments more affordable, the researchers said.

    But the medical industry isn't the only one that stands to gain from the findings. Cheese-making and other industries could also benefit from the unboiling technique, the researchers said. UC Irvine has filed for a patent, and is working with potential commercial partners, they added.
     
    cracklehead likes this.
  2. mando_dan

    mando_dan Forum Resident

    Location:
    Salem, MA
    I've had decent luck with gaining a small but noticeable improvement as well.
     
  3. showtaper

    showtaper Forum Resident

    Location:
    Chicago, IL
    Yes, but I think that type of recording ended with the introduction of the electrical process
    around 1925.......
     
    violetvinyl likes this.
  4. Grant

    Grant A Musical Free-Spirit

    Location:
    Arizona

    These programs will visually restore the look of an unclipped file, and perhaps may sound unclipped, but it cannot restore the sound of the original file before the limiting.
     
  5. showtaper

    showtaper Forum Resident

    Location:
    Chicago, IL
    WARNING:

    Avast blocks the download of the WinAmp version as containing malware. Could be a false positive
    but I'd proceed with caution.
     
  6. Wugged

    Wugged Member

    Location:
    Warsaw, Poland
    So, you've met my wife ?
     
    JamesD1957 likes this.
  7. Yost

    Yost Forum Resident

    There was a time I would totally agree with you, but now I'm no longer sure. Of course it will never restore the original sound 100% accurately. But understanding the statistical analysis techniques it is using, the software should me able to come close to the original.

    I still didn't test this particular software myself, but I'm using ClickRepair software from an Australian friend of him. And that software really removes clicks and pops from vinyl rips like magic.
     
  8. Yost

    Yost Forum Resident

    Thanks for the warning. I can only say that the site doesn't look suspicious. It's a Dutch site and he shows a proper Chamber Of Commerce ("KvK") Business Register Number. Still, his download files might have been hijacked.
     

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