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Joined 2 years ago
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Cake day: June 20th, 2023

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  • You need sampling at twice the frequency as a minimum to extract a time domain signal into the frequency domain. It says nothing about “perfect” especially when you’re listening in the time domain.

    Yes it does. You can use a higher frequency, but that does not change anything except increase the maxiumum frequency possible. Even with perfect ears and the best equipment, there is no audible (and mathematical) difference to be had.

    Everyone who claims otherwise should watch Monty’s explainer videos. I know they are quite old at this point, but everything he explains is still perfectly valid. If that does not convince you, nothing will.


  • It turns out that dynamic range is limited by the audio sampling rate and the human ear can easily detect a far greater range CD audio supports.

    Dynamic range isn’t limited by the sampling rate. It is limited by the resolution, which is 16 bits for the audio CD. With that resolution you get a dynamic range of 96 dB when not using any dithering and even more than that when using dithering. Even with “only” 96 dB that dynamic range is so vast, that there is no practical use of a higher resolution when it comes to playback. I know that the human ear is supposed to be able to handle 130 dB or even more of dynamic range. The thing is, you can only experience such a dynamic range once, afterwards you are deaf. So not much point in such a dynamic range there.

    There are good reasons to use a higher resolution when recording and mixing audio, but for playback and storage of the finished audio 16 bits of resolution is just fine.









  • When hosting this locally, I don’t see how 200 GB is much of an issue. Storage is so cheap these days, if you want to host it locally, just buy a 256 GB SSD just for that data for $20. Anyway, you were asking for a mirror, to which I replied with the information about the ZIM files. I don’t really understand the issue. Stackoverflow just isn’t that small, there is not much you can do about that.

    I think it’d take a few hours to setup even a smaller copy of SO, which isn’t ideal for answering a quick question.

    The download? Maybe, depends on your Internet connection’s speed. Actually serving it as a website certainly doesn’t take hours. It is rather a matter of seconds.



  • 486@lemmy.worldtoTechnology@lemmy.worldThe erasure of Luigi Mangione
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    1 month ago

    Of course they aren’t small, but they are probably as small as it gets, since they are pretty efficiently compressed. I am not sure what you mean by

    it’s not a straightforward operation for even the average developer or systems engineer to restore these into a working format

    since it is really trivial to use them. Just load them with Kiwix and serve them as a website. It doesn’t get much easier than that.


  • While technically true, the P4 did support PAE, in reality you couldn’t really make use of it on consumer hardware for most of its lifetime. No ordinary socket 478 mainboard with DDR1 memory supported more than 4 GB of RAM. With socket 775 more RAM was possible, but that socket is “only” ~20 years old.

    Besides that, there were other even newer systems that supported only 4 GB of RAM, like some Intel Atom mainboards with a single DDR2 socket. Same with Via C3 mainboards.





  • I’m using a DuckDNS domain with caddy as reverse proxy, but it appears that the domain is defaulting to port 80 no matter how I set up the config. I can’t specify a port number in DuckDNS as far as I can tell.

    A domain or DNS in general has nothing to do with ports. DNS is primarily used so that you don’t have to remember IP addresses.



  • I understand their reasoning behind this, but I am not sure, this is such a good idea. Imagine Letsencrypt having technical issues or getting DDoS’d. If the certificates are valid for 90 days and are typically renewed well in advance, no real problem arises, but with only 6 days in total, you really can’t renew them all that much in advance, so this risk of lots of sites having expired certificates in such a situation appears quite large to me.