5 ms·

My hypothesis: it is stored magnetically (after all magnetic sinusoidals exist) and converted electrically once the mp3 is activated in time.

achillesheels 5y ago
I’m answering further: it is a result of the software programs limitations to reconstruct the mathematically perfect electromagnetic waveform quantized beforehand which is causing noise. No one writes perfect code.
- akomtu 5y ago
  That's a funny thread. Plato distinguishes the world of ideas from the world of matter. The latter is all about magnetic fields, while the former has none of them, as it's the world of archetypes, hilbert spaces and fourier transforms. So mp3 belongs to the world of ideas, it's a concept that expresses a projection of an abstract waveform to a specific basis of functions. Sound represents a particular embodiment (aka a mechanical wave) of an abstract waveform in the world of matter. The fact that this mechanical wave is driven by magnetic fields is irrelevant and is also a tautology, because in the world of matter everything is driven by magnetic fields.
  - achillesheels 5y ago
    What do you suppose is frequency content or information? It must principally exist in an analog continuous-time domain before being quantized and cached, correct? So how do these quantities, when processed, not correspond to what is ultimately electromagnetic? I keep reading by commenters that a purely mathematical space which operates on physical movement has no relevance to physical movement vis-a-vis spectral analysis and particularly in how this analyzer - again embedded with recursive electromagnetic charges (software code) - does not affect the original time-sample. I am aware now that MP3 encoding is capturing more information than the analyzer - by design - but how can electromagnetic resonances not be considered in the discussion to warrant continual downvotes? (I'd like to remind readers that downvotes are not made available for all users, but only those who meet a certain criteria, i.e. those which reflect the general Hacker News community.)
    - pixelbro 5y ago
      > but how can electromagnetic resonances not be considered in the discussion to warrant continual downvotes Because everyone's been telling you the same thing in a multitude of different ways, but you refuse to get the point. Yes, the operation of the software we write can be affected by the physical realities of the hardware we use to execute them, but any time this causes the software to behave differently than it would in a purely hypothetical computer, this is considered an error and the results invalid. We even have hardware that automatically corrects for when rare events such as freakin' cosmic rays cause the value of a bit to flip (ECC memory). The domain of software engineering is abstracted from physical reality. There's nothing useful to be gained from such discussions, because the whole job of hardware engineers is to enable us to operate at a higher level where we don't have to concern ourselves with the quantum electrodynamics necessary to make the transistors do their jobs.
      - achillesheels 5y ago
        Thank you for the response. What evidence do you use to support your judgment that the physical system is not affecting the mathematical transformations in the present example? Or is it just an assumption that you do not need to consider “quantum electrodynamic” parameters even though the motion involved is intrinsically natural, eg bird audio?
achillesheels 5y ago
Can someone please explain to me why a hypothesis of magnetic frequencies contained in an electromagnetic cache (i.e. MP3) are not plausible to be transformable in real electrical output as opposed to downvoting me? It would be much more productive dialogue.
- drdeca 5y ago
  This seems a little word-salad-y ? MP3s are stored in bitstrings. It doesn't matter what the medium these bitstrings are stored in. The question being asked is a question about information, not about physics. So, your response is inapplicable.
  - achillesheels 5y ago
    Yes, but what are bitstrings but elementally electrical action? What do you think information is fundamentally if it is not contained in a physical paradigm?
    - detaro 5y ago
      You could write the bitstring of MP3 on a piece of paper with a pen and it wouldn't change a thing.
      - achillesheels 5y ago
        Sir, surely you don’t imply that a computer can process that.
        pixelbro 5y ago
        What he's implying, and what you're missing here, is that the discussion is about the FFT and MP3 algorithms, and how that signal processing affects the signal. The physical substrate which executes the algorithm is irrelevant to the discussion. Indeed, even the fact that the signal represents sound waves is irrelevant. We could build a computer that executes the same instructions on the same inputs mechanically, using gears and valves and whatnot, or perform the instructions manually on paper, and the algorithm would result in exactly the same output.

achillesheels 5y ago

I’m answering further: it is a result of the software programs limitations to reconstruct the mathematically perfect electromagnetic waveform quantized beforehand which is causing noise. No one writes perfect code.

akomtu 5y ago
That's a funny thread. Plato distinguishes the world of ideas from the world of matter. The latter is all about magnetic fields, while the former has none of them, as it's the world of archetypes, hilbert spaces and fourier transforms. So mp3 belongs to the world of ideas, it's a concept that expresses a projection of an abstract waveform to a specific basis of functions. Sound represents a particular embodiment (aka a mechanical wave) of an abstract waveform in the world of matter. The fact that this mechanical wave is driven by magnetic fields is irrelevant and is also a tautology, because in the world of matter everything is driven by magnetic fields.
- achillesheels 5y ago
  What do you suppose is frequency content or information? It must principally exist in an analog continuous-time domain before being quantized and cached, correct? So how do these quantities, when processed, not correspond to what is ultimately electromagnetic? I keep reading by commenters that a purely mathematical space which operates on physical movement has no relevance to physical movement vis-a-vis spectral analysis and particularly in how this analyzer - again embedded with recursive electromagnetic charges (software code) - does not affect the original time-sample. I am aware now that MP3 encoding is capturing more information than the analyzer - by design - but how can electromagnetic resonances not be considered in the discussion to warrant continual downvotes? (I'd like to remind readers that downvotes are not made available for all users, but only those who meet a certain criteria, i.e. those which reflect the general Hacker News community.)
  - pixelbro 5y ago
    > but how can electromagnetic resonances not be considered in the discussion to warrant continual downvotes Because everyone's been telling you the same thing in a multitude of different ways, but you refuse to get the point. Yes, the operation of the software we write can be affected by the physical realities of the hardware we use to execute them, but any time this causes the software to behave differently than it would in a purely hypothetical computer, this is considered an error and the results invalid. We even have hardware that automatically corrects for when rare events such as freakin' cosmic rays cause the value of a bit to flip (ECC memory). The domain of software engineering is abstracted from physical reality. There's nothing useful to be gained from such discussions, because the whole job of hardware engineers is to enable us to operate at a higher level where we don't have to concern ourselves with the quantum electrodynamics necessary to make the transistors do their jobs.
    - achillesheels 5y ago
      Thank you for the response. What evidence do you use to support your judgment that the physical system is not affecting the mathematical transformations in the present example? Or is it just an assumption that you do not need to consider “quantum electrodynamic” parameters even though the motion involved is intrinsically natural, eg bird audio?

achillesheels 5y ago

Can someone please explain to me why a hypothesis of magnetic frequencies contained in an electromagnetic cache (i.e. MP3) are not plausible to be transformable in real electrical output as opposed to downvoting me? It would be much more productive dialogue.

drdeca 5y ago
This seems a little word-salad-y ? MP3s are stored in bitstrings. It doesn't matter what the medium these bitstrings are stored in. The question being asked is a question about information, not about physics. So, your response is inapplicable.
- achillesheels 5y ago
  Yes, but what are bitstrings but elementally electrical action? What do you think information is fundamentally if it is not contained in a physical paradigm?
  - detaro 5y ago
    You could write the bitstring of MP3 on a piece of paper with a pen and it wouldn't change a thing.
    - achillesheels 5y ago
      Sir, surely you don’t imply that a computer can process that.
      - pixelbro 5y ago
        What he's implying, and what you're missing here, is that the discussion is about the FFT and MP3 algorithms, and how that signal processing affects the signal. The physical substrate which executes the algorithm is irrelevant to the discussion. Indeed, even the fact that the signal represents sound waves is irrelevant. We could build a computer that executes the same instructions on the same inputs mechanically, using gears and valves and whatnot, or perform the instructions manually on paper, and the algorithm would result in exactly the same output.