spider-mario

قبل 3 أيامdiscuss

This kind of comes across as a nirvana fallacy.

قبل 3 أيامdiscuss

> This is an assumption. How about neutral, or even hopeless? There's also the position of just not caring because you think it doesn't affect you.

Still effectively the same point.

spider-mario

قبل 4 أيامdiscuss

Or NVIDIA.

OpenAI GptForce 5600 XT

spider-mario

قبل 6 أيامdiscuss

> 16 bit isn't enough for hard, objective reasons. One is that the noise spectrum of quantisation is not simple. Most people assume it's something close to plain white noise, but it really isn't. It's actually a very complex spectrum with some prominent peaks at specific subdivisions of the sample rate.

What you are describing is the result of blunt truncation. If you use the most basic (“uniform” or “rectangular” a.k.a. “RPDF”) dither, the spectrum is in fact flat, as demonstrated by the video you are likely alluding to and calling “pseudoscientific” (https://youtu.be/cIQ9IXSUzuM?t=12m50s). If you sum two uniform dithers together, you get what pretty much everyone uses (“triangular” or “TPDF” dither) which, in addition to decorrelating the mean quantisation error from the signal, also decorrelates the standard deviation, eliminating noise modulation and leaving a correlation only in still higher-order moments like skewness and kurtosis.

You can even try it for yourself with SoX. Find a 24-bit track, quantise it with dither to 16-bit, calculate the difference between both tracks, blow up the difference and take its spectrogram and it will be completely flat. Or listen to the difference (mind the volume) and see if you can make out anything meaningful.

    $ sox source.flac -b 16 dithered.flac
    $ sox --combine merge source.flac dithered.flac loud-difference.flac remix 1,3i 2,4i norm -1 spectrogram  # assumes stereo input
    $ open spectrogram.png
    $ open loud-difference.flac

And then remember that this difference would normally sit at roughly -93 dB FS, so to hear it in a typical room, you would have to be listening at deafening levels. You claim that it “clearly isn’t” below the threshold of audibility but it’s not clear how you arrived at that conclusion. You then claim that the audibility of that noise floor is somehow related to what you said before about the effects of undithered quantisation, even though those effects stop being relevant the moment you apply any sort of dither.

> We hear much more complex signals in an active way, and if there's information missing in the quiet parts - which there is with limited quantisation - then the signal simply isn't accurate.

It’s not missing. You can do a similar test where you “bury” your source material in the 16-bit dither noise floor, blow it up again, and you’ll be able to detect it under the noise.

    $ sox source.flac -b 16 quiet.flac gain -100
    $ sox quiet.flac loud-again.flac norm -1
    $ open loud-again.flac

spider-mario

قبل 9 أيامdiscuss

Ah, right, we agree then. That’s the point I was making.

spider-mario

قبل 10 أيامdiscuss

It absolutely can be true depending on what you value. Let’s indeed not play dumb.

spider-mario

قبل 10 أيامdiscuss

Are you aware that “it’s not comparable to” / “it doesn’t compare to” doesn’t literally mean that it’s strictly impossible to attempt a comparison? It means that the comparison is not favourable.

spider-mario

قبل 10 أيامdiscuss

> I swear, the blatant lies that come out of supposed Mac fans on HN is almost like Apple is astroturfing this forum with shill accounts.

How ironic. There is no “blatant lie” in “their hardwares aren’t comparable to MacBook” if you don’t know what aspects they are comparing, but there are in your comment.

spider-mario

قبل 10 أيامdiscuss

> for people who aren't in audio codec dev space

You don’t need to be in the audio codec dev space to have heard of one of the most widespread audio codecs of the last decade (used by YouTube, WhatsApp, SoundCloud and added to WebM in 2013).

spider-mario

قبل 10 أيامdiscuss

It’s maybe not a universal consumer application, but it doesn’t seem that outlandish to imagine that some of them might want to protect their personal collection. Or am I that extraordinarily attached to mine?

spider-mario

قبل 10 أيامdiscuss

By just always using 48 kHz, from what I recall?

spider-mario

قبل 11 يومًاdiscuss

It will probably remind French speakers of this: https://youtu.be/G7NB_RwtPx4?t=5m18s

spider-mario

قبل 11 يومًاdiscuss

Have you tried Z-Image (Turbo)?

spider-mario

قبل 12 يومًاdiscuss

Oh no, 0.6 kWh a day!

spider-mario

قبل 17 يومًاdiscuss

Why should the parent comment be immune from factual challenges? Reports of personal experience are not sacred.

spider-mario

قبل 17 يومًاdiscuss

Unless you mess up its associativity, like PHP until 7.4.

https://wiki.php.net/rfc/ternary_associativity

http://phpsadness.com/sad/30

spider-mario

قبل 17 يومًاdiscuss

Same in Perl, hence the good old pattern:

    open my $fh, '<', 'input.txt' or die;

spider-mario

قبل 20 يومًاdiscuss

They said it’s GPT 5.5.

spider-mario

قبل 23 يومًاdiscuss

What’s with the slanted figures until you hover over them?

spider-mario

قبل 26 يومًاdiscuss

To be clear, by “animation”, I meant the whole SWF document. Do you mean that tweens were decoupled from the document’s framerate?

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