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Severian

787 karma · joined September 5, 2012

I could be a dog or a bot impersonating a human.
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Severian··on Benefits of Class-G and Class-H Boost in Audio Amplifiers [pdf]
Honestly, no difference besides a red PCB. Most likely the brand recognition and possible(?) warranty for US sales. Price probably includes the US support (if any) if you need help.
Severian··on Benefits of Class-G and Class-H Boost in Audio Amplifiers [pdf]
If anyone wants to easily get into Class D amps, Parts Express has private label Dayton Audio amps [1] with a variety of features and wattage levels. They use Wondom/Sure as their supplier [2].

They are pretty feature rich: they support I2S, Bluetooth, and Sigma Studio for DSP effects (using the Analog Devices ADAU170 IC).

I myself am pricing out a kit so I can build a ammo-can speaker box. I'll probably go with Parts Express as it's a 1.5hr drive to visit the brick and mortar store, and I can get the speaker drivers as well (plus other components).

[1]: https://www.parts-express.com/electronic-parts/audio-amplifi... [2]: https://store.sure-electronics.com/

Severian··on Redbean 2.0 turned into more than a hobby project
Redbean is amazing. I was able to run some TLS stress tests against it (where you setup a handshake and just disconnect). I was able to pump out about 1200 connections per second between my desktop and laptop on 1gb ethernet. I only had 5 handshake errors.

I look forward to playing with this!

Severian··on US Army's Land Trains (2020)
it wouldn't have made it, as it ran off of electric power. It trailed a huge electrical cable. Which makes sense as it was operated by American Electric Power. You can visit the bucket at Miners' Memorial Park where it's on top of a hill ( which I have to visit to get cell service when I camp nearby). It's the size of a small house.
Severian··on “Crime Pays but Botany Doesn’t” crosses citizen science with environmentalism
I've been following him for awhile now. Didn't realize how popular he's become. I love the very Chicago accent, one of the reasons I started watching.
Severian··on First Reflective LCD indoor monitor – 32“ FullHD true-color 60Hz
10 bit color would be nice. I'd love to see this technology mature to that.
Severian··on Elementary Audio: a modern platform for writing high performance audio software
Is this for Web audio only?
Severian··on Apple AirTags draining battery of devices close by
Have you considered blasting them with the most annoying music you can find until they fix it? Deny all culpability of course.
Severian··on Epic Games acquires Bandcamp
Fucking god dammit. This is all I have to say. My one joy and it'll probably be ruined with bullshit.
Severian··on Feds arrest couple, seize $3.6B in hacked Bitcoin funds
Probably liability to the Fed, but not local prosecutors for whatever locality Bitfinex was in then?

Are bitcoins recognized as personal property, IP, none, or something of a blend in smaller jurisdictions? I have no idea.

Severian··on Feds arrest couple, seize $3.6B in hacked Bitcoin funds
So, hypothetically, if these guys were to completely cash out these coins somehow, and then pay tax to the IRS, would they be immune from tax fraud and IRS involvement? I know similar things happen with stolen property and illegal drugs (Sullivan v. United States).
Severian··on The case of the mysterious --help directory (2020)
Actually it should be: "Customize your environment, but take some damn notes FFS."
Severian··on The curious case of the Raspberry Pi in the network closet (2019)
Something like dnscat2 would ultimately be better in my opinion. Have it connect once to get the disk key, decrypt, and end the process. Then have your device do it's thing, and once a condition is met, spin it back up, transmit the data (using small packet sizes and very large delays to possibly avoid IDS) and exfiltrate what's needed.
Severian··on Multiple Sclerosis Causality
Found this in my news feed, so this timely. Good news I guess!

https://www.forbes.com/sites/roberthart/2022/01/14/moderna-s...

Severian··on Microsoft sites throwing OCSP Errors with Firefox
FWIW the solution is to disable OCSP support in Firefox. Not exactly best practice security-wise (how are you going to know the certificate is revoked?), but will let you access the problematic Microsoft sites again.

Go to "about:config" Change security.ssl.enable_ocsp_stapling to false.

Severian··on The Matrix Is Unreal
Ok, I was under the impression that the white room scenes were a mix of filmed and digital assets, not 100% renders. In this context it is very impressive. The later scenes are very good, but in as others put it still in that uncanny valley area. We are on the up-slope however!
Severian··on Player of Games
The Grimes song is a reference to the book too. She also has Marain subtitles in her video for "Idoru", which is the language used in The Culture. Weird mix of two author's (Idoru being William Gibson) works to be sure.
Severian··on Zrythm: A highly automated and intuitive digital audio workstation
Note: you must also build the software yourself to get ASIO support for Windows (which uses RtAudio). You'll be stuck with an order of magnitude greater latency under WASAPI (or worse under MME), assuming your device drivers are built to use it.

https://docs.zrythm.org/md_doc_dev_windows_build.html

IANAL, but it looks like maybe the devs don't want to to register the license with Steinberg and keep this free (as in beer) licensing-wise?

This looks cool, but the barrier to entry to a bit steep under Windows. I want to make noise, not spend time messing around with building software.

Severian··on Micro – a modern and intuitive terminal-based text editor
Yeah, buffering in an editor is important. I'll look into Vim a little more.
Severian··on Micro – a modern and intuitive terminal-based text editor
As another commenter noted, this is a good alternative to Nano (I too need to learn Vim). I've checked this out, and I like what I see so far.

Typically my main use for text editors is for log analysis (mainly Sublime Text). This usually means I write a lot of regex for searching.

With that in mind, I do see one shortcoming in the choice of Lua as a scripting language. It's not really known for it's text processing abilities. One major shortcoming is that it doesn't have a true regex engine. This is something I use extensively.

For most of my use cases, this would require I hack together a native search in the application, and then pipe the buffer to Lua for post-processing. I'm not sure if search/replace pipelines are going to be easy to code in this manner or efficient enough to be worth it.

I use Sublime Text because it uses Python and makes this relatively easy. Or if I'm searching over thousands of logs to use ripgrep and just pipe in whatever that way since it can search 10GB in a few seconds with moderate sized regex.

Otherwise, I like the approach and the helpful commands for the user! It is definitely nice to be able to stay in a terminal instead of using a GUI to edit.

Severian··on More Casio Watch Mods
Hmm, a MicroSD card is handy, but how about a MicroSD card to USB reader in the watch strap?
Severian··on A Tunguska size burst destroyed Tall el-Hammam, Bronze Age city in Jordan Valley
Here is the website to model a bolide impact as referenced in the paper for those that didn't catch it.

https://impact.ese.ic.ac.uk/ImpactEarth/ImpactEffectsMap/

Severian··on Kei Car
For sure. I have a huge 1995 Ford F-150 XL that the wife and I mainly use for camping and kayaking. Needed something, and I was able to snag it for $1800. Otherwise looking at 10k+ for something newer.

It has horrible gas mileage, but I guess that's offset by pretty cheap repair costs. Parts are abundant. Parking is a real chore.

However, I've wanted to downsize, and one of the these Kei trucks would probably fit our use case 90% of the time. Just more work packing the camping gear and getting a kayak mounted safely.

Severian··on Why wild foxes led you to treasure in Skyrim
If on desktop, just block all cookies from Twitter.
Severian··on Don’t Wanna Pay Ransom Gangs? Test Your Backups
3-2-1 Backup Rule:

Three copies of your data. Two "local" but on different mediums (disk/tape, disk/object storage), and at least one copy offsite.

Then yes, absolutely perform a recovery and see how long it takes. RTOs need to be really low. Recovering from object storage is going to take at least a magnitude more time than on-prem.

Also, storage snapshots/replications are not backups, stop using them as such. Replicating is good for instant failover, but if your environment is hacked they are probably going to be destroyed as well.

Severian··on Where did my 256 GB go? Mobile storage Analysis [pdf]
FWIW, I've switched to Greenshot and I couldn't be happier. So many useful features. I donated to the developers due to the annotation features alone.
Severian··on Chemical space is really big (2014)
"I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
Severian··on The Dangers of Low Head Dams (2019)
Bingo! I was not aware the 5th Ave. dam was used for cooling in the past. Most of my knowledge about the removal was talking to some people who worked on the project, and they mentioned water erosion (incision). I guess I added 2+2 and got 5.
Severian··on The Dangers of Low Head Dams (2019)
My city removed a few low head dams near the center of the city over the last decade. We are still in the process of a major reworking of the sewer system (to the tune of a few billion dollars) to separate wastewater from storm water due to EPA regulations. Because untreated wastewater is no longer flowing into the rivers, one thing we found is that we didn't need so many low head dams to keep incision from occurring as much.

This improved our downtown as it allowed us to also alter the river channel and opening up some land to build new parks on. Paddle boaters can travel much further, and the river ecology is improving drastically.

Severian··on 80M I/O Per Second with a Standard 2U System
This rack could be used for storage, not compute. You could add a Mellanox 400Gb NIC to the machine (assuming you have the required 32x PCI lanes for it), and then route that to your compute resource. This is a typical scenario.
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