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arthur2e5

1,125 karma · joined April 29, 2016

zh-CN-N, en-US-5.
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arthur2e5··on How Surround Sound for Headphones Works (2014)
The other thing I've noticed about your work is that you don't use filters derived from lab-measured human HRTFs, but instead approximate them from first principles. Very interesting approach, although I do worry about missing out on the up/down asymmetry of the auricles -- not an issue for planar 5.1 though.
arthur2e5··on How Surround Sound for Headphones Works (2014)
Unfortunately no, but you should be able to find the bundled openal-soft version by unpacking lwjgl-native*.jar.
arthur2e5··on How Surround Sound for Headphones Works (2014)
Interesting exercise, but for those looking for something closer finished product: look no further than openal-soft. Its HRTF support is what makes sound effects in Minecraft (Java Edition, on Windows and Linux -- headphone detection was very recently added for macOS) truly sound where they're coming from. Plus there's no intermediate mixing through any surround system, so you can even tell up from down. (HRTF in alsoft is not quite complete: it lacks support for near-field effects.)

Oh, (2014). That was a different time -- alsoft had just added HRTF and the technique was less known by then.

arthur2e5··on Universal DNA methylation age across mammalian tissues
I can see zookeepers being happy about this new clock: "blood age tests" can now be done on every mammal.
arthur2e5··on High-Dosage NMN Promotes Ferroptosis to Suppress Lung Adenocarcinoma in Mice
It's chemically one step closer to NR and NMN -- it's already the amide, just add the R and MN.

But it's also as useless at longevity in animal studies as plain niacin. Technically that's the same "effectiveness". Feeding in more raw material won't do so much when conversion to the active form is tightly regulated.

(Niacin lowers cholesterol via HCA2, something nicotinamide, NMN, and NR does not hit.)

arthur2e5··on Windows feature that resets system clocks based on random data is wreaking havoc
There are ways said to circumvent the enterprise policy on the autosync side, like unregistering win32tm or deleting all servers from the registry. No idea about setting the time though…

(A smarter time daemon like chrony would've kept track of the RTC drift.)

arthur2e5··on Internet Archive responds to recording industry lawsuit targeting obsolete media
Audacity wiki (which is the official documentation and not something you can request an account for IIRC) has a page for that: https://manual.audacityteam.org/man/recording_78_rpm_records...

Just make sure you invert the equalizer / preemphasis before you change the speed.

arthur2e5··on Does there exist a complete implementation of the Risch algorithm?
I wonder if someone will make a publication out of his incomplete manuscripts. How many years do this kind of work take in the field of mathematics? Marx's Capital Volume IV took 20 years from his death to Kautsky's publication.
arthur2e5··on Emulating x86 on X64 on Aarch64
I live in a cave called "x86 Hackintosh" -- it sure looks like all this would work on an x86-64 Mac, maybe similar x86-64-only environments like WSL1. Very cool to see wine32on64 being done differently -- without a magick-infused compiler!
arthur2e5··on The anesthetic effect of air at atmospheric pressure
Neon is allegedly non-narcotic too. Being closer to air density, it can be part of a non-funny-voice version of gamergas.
arthur2e5··on RFC 9446 Reflections on Ten Years Past the Snowden Revelations
RFC, in its earlier days, was not as rigid as it is now. You get standards written like essays (good for figuring out why, not quite good for figuring out how to do something) and regular essays. Check out more from the Informational category:

* RFC 1121 "Act One - The Poems". https://www.rfc-editor.org/rfc/rfc1121

* RFC 1983 "Internet Users' Glossary" https://www.rfc-editor.org/rfc/rfc1983

* RFC 2468 "I REMEMBER IANA" https://www.rfc-editor.org/rfc/rfc2468.html - Yes, people kept having fun after RFC 2119.

More goodies at https://www.rfc-editor.org/search/rfc_search_detail.php?sort.... A lot of the April Fool's RFCs are Informational too.

The even older categorized class contains more essays. https://www.rfc-editor.org/search/rfc_search_detail.php?sort...

See also: https://en.wikipedia.org/wiki/Request_for_Comments#History. RFC started out informal!

arthur2e5··on Show HN: Pip Imports in Deno
The organization name "denosaurs" very roughly works for a combination of deno and python too: snakes fall into the clade of Lepidosaurs. Dinos are Archosaurs.

I wonder if there's another programming language featuring a reptile. What's this "Lizard" language Duckduckgo's telling me about?

arthur2e5··on Java’s floating-point hurts everyone everywhere (1998) [pdf]
> It is not a goal to define any sort of "fast-fp" or "loose-fp" (c.f. JSR 84: Floating Point Extensions).

(Comic villain sitting in his fast-math lair) Foiled yet again!

arthur2e5··on Goto in Bash (2012)
This reminds me of the Thompson shell goto, which is an external(!) program that messes with its parent's file descriptors looking for `: label`.

See manpage at https://etsh.nl/man/_goto.1.html and source code at https://github.com/eunuchs/tsh/blob/master/goto.c.

See, history can give you a more inert syntax. And maybe a new way of thinking about how to make this thing... I would love to have a more robust version to do C-style goto cleanups.

arthur2e5··on Intel AVX10: The Successor to AVX-512
32 GPR is a different extension, APX (Adv. Performance Ext.), which also has arm-ish predicated insturctions.
arthur2e5··on Young people are flocking to astrology
White noise can occasionally make images seem sharper[1] or enhance perception of pure tones.[2] (Tinfoil hat on) Astrology and tarot might be doing the same thing for introspection. Confirmation bias will at least make you more sure about something, and… indeed people do these stuff to feel more sure about themselves.

[1] https://library.imaging.org/admin/apis/public/api/ist/websit..., https://www.spij.jp/wp-content/uploads/2019/02/BSPIJ24_019.p...

[2] https://www.sciencedaily.com/releases/2019/11/191112142926.h...

arthur2e5··on Young people are flocking to astrology
> Yet more Americans know their zodiac sign than their blood type,

I mean, most people get a reminder of their birthday once per year, but blood type? You have to test for that and most people just don't see that sort of thing come up. The average person neither gets blood transfusions obviously (and it's not like medical professionals take what you state about your blood type for granted, so remembering doesn't help) nor have a good reason to donate.

If anything, it's good that Americans aren't doing Japanese blood-type personality beliefs. I hope they never do.

arthur2e5··on Llama2.c: Inference llama 2 in one file of pure C
Wanted to say the same. I had to check the dictionary to make sure it's not some obscure "exercise" situation as I've unfortunately seen it used as a verb before (in a shoddily written README).
arthur2e5··on JPEG XL: How it started, how it’s going
Region annotation is used for some images on Wikimedia Commons and a lot of Manga pages on the booru sites[1]. It's really, really good for translations.

[1]: https://danbooru.donmai.us/posts/6510411?q=arknights

arthur2e5··on Minify and Gzip (2022)
Slowness on compression or decompression? The compression end, which is slower, can be plausibility mitigated with analogues of gzip_static.

And as the brotli people will insist on telling you, it's good even without that dictionary: https://news.ycombinator.com/item?id=27163981

arthur2e5··on “M365 users also have the option of the less secure channels”
A quote-tweet of https://news.ycombinator.com/item?id=36696127 showing that the vulnerabilities used in the picture were actually patched, but targeted enterprise users were on an update channel without these patches.
arthur2e5··on Recreate the cavity-preventing GMO bacteria BCS3-L1 from precursor
White spots is mild fluorosis. The brown stuff comes in when you live next to a coal mine so your water is filled with fluoride (at concentrations way over what any reasonable water-fluoridizer wants to add) and other nasty stuff.

People talk about how the fluoride in tea can help prevent cavities, but on the darker side... just imagine having all your food come from that sort of fluoride-rich soil.

arthur2e5··on Recreate the cavity-preventing GMO bacteria BCS3-L1 from precursor
Could be something deeper down (tonsils, esophagus, nose), or... mouth breathing, which can become a habit if your nose is clogged often.
arthur2e5··on OpenWorm – A computational model of C. elegans worm
If zoidberg can be a doctor, pretty sure my worm can too!
arthur2e5··on Denuvo wants to convince you its DRM isn’t “evil”
People don't read EULAs, but they certainly notice when the "minimum specs" on the tin don't work. Such is life.
arthur2e5··on DARPA Seeks to Shield Blood from Fungal and Bacterial Pathogens
Looks like it's a combination of strong antimicrobial peptides and good antibodies. (They recently figured out a defensin responsible for the fungus resistance). Not sure about if you can just pop these AMPs into human blood and how long the trial process will be though.
arthur2e5··on DARPA Seeks to Shield Blood from Fungal and Bacterial Pathogens
Imagine holding some study that can't even read a structural formula as the holy grail. The big R on any sulfonamide means that there's no "common SO3" as mentioned in the abstract.

Disregarding that, just pull up any sulfonamide antibiotic and tell me where you plan to magick the benzene ring from. Or tell me why an also "sulfonamide" diabetes drug is not antibacterial.

arthur2e5··on DARPA Seeks to Shield Blood from Fungal and Bacterial Pathogens
Ha, yes. The "sulfonamide" name may make it sound like just an OH acid/amine swap, but the buried part is that all such antibiotics have a big benzene ring hanging off the other end. The prototype is instead sulfanilamide.

I don't see any merit to this antimicrobial hypothesis, honestly. Muscle catabolism happens whenever protein is needed: what's the microbial threat when a body is starting to starve and disassembles some muscles to get gluconeogenesis going?

arthur2e5··on Tell HN: Twitter switched temporarily to rate limited mode
Blue sales ultimately can't hope to come close to what big brand ads used to give.

And ironically enough, blue currently works as a crappy version of advertising thanks to the reply ranking. The promises of prioritizing "high-quality content" never came true; all we see are mid takes and, if you speak Mandarin, AI-powered sex scambots.

Well, worse for us plebs. Not sure if it's worse for the buyers.

arthur2e5··on Aspartame sweetener to be declared possible cancer risk by WHO, say reports
The IARC lists do not answer these two questions on their own either, but with the "evidence level" groups there's at least some separation from alcohol down to aspartame. These levels are still insufficient for at-a-glance risk assessment: putting mustard gas and alcohol both at level 1 can send you into a bit of a spin until you realize what the grouping is about.
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