skysight-inc/HackerNews huggingface dataset:
It’s mostly because speakers aren’t the best at reproducing ultrasonic frequencies that are captured by the high resolution audio files. You might have components of the speaker that have resonances that manifest the ultrasonic frequencies at a lower frequency.

Imagine the normal operation of a speaker as a swing, except you are pushing and pulling the swing all throughout the cycle as it goes up and down. Now, you can technically move the swing at a variety of frequencies if you’re holding onto it the whole time. However imagine as you push it back and forth (low frequencies), you also vigorously shake the swing at the same time (high frequencies). This would probably result in the chains rattling, similar to the unwanted distortions in the speakers caused by ultrasonic frequencies.
Which American city, if any, plans for anything close to that time scale?

Seems like every city, county, state, etc. screw up planning on less than human time scales - pensions and infrastructure maintenance for instance.
I've seen this posted at least twice already this week. Both times it got upvited enough that it should have made the front page but was instead flagged to oblivion. Don't know why people are finding this article so offensive.
https://en.wikipedia.org/wiki/Business_judgment_rule

So the business judgment rule isn't where any normal person would want to start on this topic, but I think it's wikipedia article probably is the best in terms of defining a few things and then linking you to more resources.
Entertainment on the Blockchain with ICOs: Opus, Viberate, Kim Dotcom
> As a new grad I often times find myself frustrated with setting up postgres or other rdbms so I usually opt for easier systems like amazon RDS, firebase or mongo.

Yeah, I know exactly what you mean. Everything in Postgres is supremely well documented, but there's just so much documentation, that getting the basics down is pretty hard. I definitely went through a period of building muscle that was a tad frustrating to say the least.

Unfortunately, I don't know a particularly succinct resource that I recommend right now, but I will suggest taking a look at official docs. Maybe the section on managing databases in particular [1]. In general, you should just get good at using createdb, dropdb, and psql (which is mostly just generic SQL).

If you're on a Mac, installation and setup might looks as easy as:

brew install postgresql
brew services start postgresql
createdb my-test-db
psql my-test-db
dropdb my-test-db

(There's obviously far more there than just that, but at a basic level, most of the commands are reasonably easy to use.)

[1] https://www.postgresql.org/docs/9.6/static/managing-database...
This article seems to boil down to "stop liking what I don't like." Is Wildberger's distaste for real numbers eccentric? Yes. Is there anything fundamentally wrong with what he is proposing? Absolutely not.

As long as rational trigonometry is logically consistent then you really can't argue against it except on aesthetic grounds. I don't see why popsci outlets like Scientific American should feel the need to rally the public against rational trigonometry on emotional grounds.
Disrupting AWS S3 Logging
Just wanted to say I really appreciate all the personal anecdotes people are sharing; the personal stories aren't often shared in this quantity in one discussion here and doing so somehow changes the entire experience in a very positive way. Up-votes all around!
ARKit Human Interface Guidelines
What a nice post. Almost Dolphin project level.
Very nice!
That interview seems deliberately casual though.

Could it be that sometimes the perception that someone is "effervescent" is attributable to a tendency to perceive women as "effervescent"?
> Dehumanization is equally present on the left

it's always a problem no matter who does it; I abhor it from the left too. But consider that it's unlikely to be 'equal' at any point in time between different groups in a fast-changing political landscape.

My main point is that the difference between the groups is not ordinary people on Twitter, but high-profile leaders, even national leaders, are doing it on the right; Obama did not act like Trump in that regard; the UK foreign minister and the leader of Hungary, among others, openly advocate white supremacy. Also in the media: Read Wall St Journal editorials, which go out of their way to demonize (and dehumanize) those on the left; it's in almost every one, it seems.

But I agree; let's oppose it everywhere.
Because modern production can involve hundreds or even thousands of digital effects. So 24-bit, or even 32-bit float just because you can, is standard.

As Monty demonstrates, it's a fraudulent waste to try to sell the result as a product to the end listener.
For my use I'm primarily concerned with an off-site copie of a folder full of files (mainly pictures/videos), so the basic sync works just fine for my case. It even keeps versions of files [1] in case you corrupt/delete/overwrite a file.

What is it missing that Crashplan and Backblaze Personal Backup have?

$5/mo of B2 is about 1TB of storage, so if you're above that then maybe cost is a factor?

[1] https://www.backblaze.com/b2/docs/file_versions.html
Oh it's in your nature to be an anti social dork in a basement? Unfortunate for you!
What you wrote isn't a fact, it's a claim, and a shoddy one at that. If you're basing it on anything other than hearsay, I'd love to see your proof.
Apple shows off new AR apps just as Google launches ARCore
That EnterpriseDB benchmark is a comically inept hit piece. See: https://newbiedba.wordpress.com/2017/05/26/thoughts-on-postg...
How did the Game Genie work anyway?
Sadly this is such a fraught subject that it's difficult to have a reasonable discussion of it. Two camps are definitely present, and seem to be concerned primarily with stamping one another out.

I would cite examples, but it would get me banned from hacker news and/or fired from my job. Ha ha.
But what about lossless 16/44.1KHz audio? It's not a "compressed" version of 24/192Khz. Chances are that your 192KHz music will be low pass filtered anyway, 192KHz is a trick that sound chipset vendors added so that integrators wouldn't have to make high quality analog filters for their ADCs. There's likely nothing above 22.05KHz except shaped noise, production artifacts, and very, very quiet ultrasound noises which have nothing to do with the music.
How is it any worse for iOS? You even have to fork out $2k for a Mac as a dev machine!
AFAIK Medium's selling point is the network, i.e. the easy access to potential followers. My website is static via org-publish, but nobody knows it and if I wanted to popularise it I'd have to do many things. With these networks+hosting services like Medium and Tumblr all you have to do is put some tags. I was asking for this sort of alternatives.
I didn't read it that way. They are rallying against the claim that rational trigonometry is "superior" or "more accurate", and not on emotional grounds.
Note that jaywalking is very much not a crime in the UK. Off of a motorway (which is a relatively recent invention), roads are still for people to some extent. Hopping off the pavement for a couple of seconds to bypass someone who's decided to stop right in front of you is semi-normal, much of rural UK doesn't even have pavements, and we get taught how to Stop, Look, Listen, Live in order to cross a road without a traffic light as kids.

If a pedestrian starts to cross the road, they have right of way. I've been on roads in some city centres where vehicles have to be very, very careful as there's a road through a pedestrianised area and people are rather bold crossing the road. If the vehicle was to cause injury, the driver would likely be liable.
You CAN break the law if you are okay accepting the punishment.

A good instance is jaywalking: it's a minor offense and police don't really care to enforce it. So people decide to break that law all the time.

A law is a contract. Anyone is free to break the contract if they are willing to accept the consequences.
But that’s the exact issue that this entire article is missing!

It’s all about peculiarities of the codec!

The issue at hand is apple selling 24bit/192kHz versions of lossy AAC compressed files, compared to 16bit/44.1kHz versions of AAC files.

And the issue I was comparing with video was the same – with video, codecs enforce Chroma Subsampling, where the resolution for color is half that of the actual imagery.

In the same way, AAC and mp3 heavily reduce the bandwidth for the upper half of the frequency spectrum, spending like 90% of their available bandwidth on the lower half (with 44.1kHz, they prioritize the range between 4 and 8kHz, specifically, where speech is).

The entire topic is if using a codec that specifically cuts away the lower and upper parts of the frequency spectrum, increasing the frequency spectrum can improve quality. And yes, it does. Apple is selling AAC, not WAV. Which makes the entire article useless.

Yes, we should all focus on replacing 16bit/44.1kHz AAC with 16bit/44.1kHz FLAC instead of 24bit/192kHz AAC, and we all should focus on replacing 4:2:0 1080p mp4 with 4:4:4 1080p mp4 instead of 4:2:0 4K mp4 (the chroma subsampling issue I mentioned). But that’s not the reality we live in, and given the choice between 16bit/44.1kHz AAC and 24bit/192kHz AAC, I’ll choose the second.
If they wanted to use the Mac mini for a "home theater" they might notice that the mini can't handle 4K/UHD resolutions above 30Hz.

Even outside home theater use, they may notice watching H.265 videos on a computer without hardware decoding (not really a problem now, very much will be a problem within the lifespan of a mini purchased today).

They'll notice if they have another, actually new Mac in their lives and find the mini has no USB-C ports, either for Thunderbolt 3 or even USB 3.1 (of course this is also true of the Mac Pro but at least they've 'fessed up about that).
You can't unopen Pandora's Box, and trying to close it is a bit of a sisphyian task. Might as well enjoy the terrors of the box.
Like this persons attitude towards failure. He is a leader.
Keep calm and disassemble.
Although still a WIP, I found out that reading to my (mostly bilingual) kids in the non-dominant language is helping them mastering those subtle cues that previously gave them away as non-native speakers. A lot of those issues are pretty difficult to identify upfront e.g. homophones and reading aloud makes them evident to them. Correct entonation and cadence come along naturally now too.
It's great to see local and state government coming to a sensible deal with AirBnB and also with Uber.

It should be a model for how to handle these things. Some light oversight and some tax, but not caving in to extant rent seekers like taxi plate owners and hotel chain owners.
Is your serverless system as good as you think? Are your sure?
Can you provide a citation to that level of geographic diversity per region? My understanding is that all AZs are within the same physical facility, but independent networking and power.
I recently started using honeysql and so far it has been great.

There is some learning curve figuring put how things work, but the advantages of having SQL encoded as clojure data are worth it, in my opinion:

- s-expressions everywhere means that structural editing works

- allows for easy composing of sql queries - can very easily add custom filters, joins, etc and build up queries dynamically

- can easily add abstractions, for example something like https://github.com/metabase/toucan/blob/master/README.md

If you use postgresql, check out:
https://github.com/nilenso/honeysql-postgres/blob/master/REA...
Stream Production App Logs from the Nanobox CLI
Mandatory IRB story: http://www.npr.org/templates/story/story.php?storyId=1023936...
Saturated fat is specific, "dietary fat" isn't.
It has not shattered any belief in traditional currencies YET -- give it a few more decades and a few more financial crises caused by incessant money printing and fake credit expansion and I suspect things will look quite different.
I think that this statistic only makes sense if it is specific to the location. Otherwise, it is useless for planning purposes. If it is specific to the location then the birthday paradox does not apply.

Interesting note, this is Houstons third 500-year flood in three years [1].

[1] -https://www.washingtonpost.com/news/wonk/wp/2017/08/29/houst...
Probably my favorite to read out loud that way is A Christmas Carol. Dickens originally wanted to be an actor, found fame as a writer instead, and brought the two passions together by ging public performances reading/reciting his stories. You can really tell that A Christmas Carol was meant to be read out with a bit of zest.
The "Birthday Problem" has a simple explanation. Something like nearly 45% of people are born in the Summer months. Ensure that you get people of different ages and your chances of finding someone with similar/same birthday goes up enormously.
Khosrowshahi Says He Will Accept Uber CEO Job
I never developed for iOS, because a platform that has in my home market (the EU) a marketshare similar to what Windows Phone 7 had in the US (below 15%) is useless. Especially when development starts upwards of $3000.

I’m comparing between developing on Google devices, and non-Google devices.
> Friend-or-foe identification can boil down to "only targets shooting at me are hostile".

And those that shoot at allies. And those that haven't shot yet, but are aiming in the wrong direction. And those that are just reloading their mortar. And those that are setting up an explosive trap for the robot.

There are a lot of ways to be hostile that go beyond firing a weapon directly at the robot, and if it can't handle those, it will be exploited by humans pretending to be harmless.
Because Google appologists. Because Google technically isn't a monopoly. And that lessons learnt from Microsoft has began to fade away in the zeitgeist.
To be replaced soon by "4k video is very silly indeed"

If you look at the angular resolution of the eye, unless you are sitting very close to the screen, you can't resolve 4k video.
Totally agree. Once you have autonomous military invading other countries will be very attractive.
That was a lot of words, so here's an executive summary of how to use the Project Greenlight Framework™:

1. Identify a demand.

2. Find customers who will pay you for your solution.

3. Blog posts.

There's also an optional step 1.5: See if anyone's already meeting this need, then proceed regardless of answer. Especially proceed if the answer is yes.
Isn't it possible that people are using cryptocurrencies as an alternative to restrictive fiat currencies and not just for speculative purposes?

(Obviously people are also using them for speculation, but that doesn't mean that's the ONLY current use case.)
I believe there's a new section of the site where you can enter the password and see if it's been pwned, it should've been updated to include this latest dump.
This is specifically addressed in the link under the section titled "When does 24 bit matter?"
> Win power? I hope not. Who would want any of those two choices

I agree. I'm against both. My point is that there is no threat of that from the left right now, but perhaps the largest threat from the right since WWII. Antifa has no chance of gaining political power anywhere much less having advocates in the White House and other national capitals.

> >even China's Communists are authoritarian capitalists who have retained the old brand name.

> That one is a little more nuanced than you present. They are communists except for some big areas of the economic system. However, there are many areas where they have not departed. How the party is run, how the country is organized and governed, how the people are controlled, 5-year plans, etc.

I don't know if I agree. They remain authoritarians (maybe becoming totalitarians) in those regards; they use the same structures that were used by Communists when they were ascendant in China and worldwide; but I'm not sure what is particularly Communist about all of that in the political ideological sense. I do know that Xi was reviving some of the ideological language, but that seemed more like a tool of obedience than something anyone took seriously. Capitalist authoritarians took over the Communist machine and decided it was easier to use the legacy tech. But maybe you know something I don't ...
I'm sorry, what? I get that Airbnb allows individuals to list their own properties but if we're being honest in a couple years the majority of Airbnb property owners are going to be precisely those existing rent seekers who have found a way to operate basically small expensive hotels in areas where commercial zoning is expensive.

It's really isn't going to change much in the long run. It's just a de-facto commercial zoning grant to all residential areas. It's going to decrease the pool of available properties for long-term residents and raise the rents for those residents because every property manager is going to have to decide whether they think they could make more money by renting to an individual long-term or by just perpetually listing on Airbnb.

This really isn't a victory for anybody but Airbnb and existing property managers.
ChainerCV: A Library for Computer Vision in Deep Learning
that... seems like a bad idea.
The best podcast episodes on VC, entrepreneurship and business leadership
I disagree.

Mansfeld and Wildberger made a number of trivially provable false claims. I read the SciAm article as 1) focusing on their false claims and 2) not trying to "rally the public" against rational trigonometry at all, much less on emotional grounds.

In particular, Mansfeld and Wildberger (especially as reported in other outlets) are making the claim that "rational trigonometry" is more accurate, and that's a concrete claim with is 1) easily verifiable and 2) wrong.

And that's not even touching on the bizarre claim that "we count in base 10, which only has two exact fractions: 1/2, which is 0.5, and 1/5." There's so much wrong with that, it's hard to know where to start.
OpenGL is not being emulated, it's being implemented. OpenGL is just the API and specifications, it's up to individual graphics hardware vendors to put a conforming OpenGL implementation in their driver. Ideally it would all be done very fast in hardware, but there are still times when a particular feature can't be done on certain hardware, and is performed in software to conform to the OpenGL spec.

Apple already has a complete software OpenGL implementation, which they may have modified to simulate the individual OpenGL ES implementations for each iOS device. This also has the advantage of removing the developer's hardware from the equation: If they want to test a bleeding-edge OpenGL ES app on a really old MacBook, it'll run - just slowly.
That’s a pretty evil (smart) test. Love the ambiguity! I’m sure the MT community has lists of these. Any links to such a list?
It'd be really nice if the new Mac Pro is easily rack-mountable. Maybe Apple could just offer a rack mounted version.

Also, it would be great if you didn't even need Mac hardware to run a build server. Maybe port the xcodebuild command to Linux, or license macOS to run in virtual machines on 3rd party hardware for such purposes.
OCC: U.S. banks should waive fees, allow late payments in areas hit by Harvey
Things I Dread/Appreciate Seeing in my Inbox #47:
"Have I been pwned?"

Such a valuable free service.
https://haveibeenpwned.com/

Just got my notification about this one today [sigh]
Hmmm... I'm a bit foggy on the specific quote, but in the Graphics Programming Black Book, specifically the part where Abrash covers writing fast code, he says something along the lines of:

> Avoid special cases, because a special case means slow code

So yeah, handling of special cases will bite you on the performance side. Sometimes it's inevitable, but if you have a lot of control (or you're very specific) of what values get passed as parameters, then you can get away with not handling special cases (or just handling the ones you care about).
This article seems to be full of baseless claims with no proof, I agree with others, looks to just be a product ad. If they knew who he was, and he had committed any offenses he would have already been arrested.
Is this true? Which months are considered "summer"? Northern Hemisphere or Southern or both? This can easily turn into a "40% of sick days are on Monday or Friday" type fallacy.
The MacBook Air hasn't been updated since Early 2015, not as long as the mini's gone without an update but unlike the mini, I doubt they've make a new MacBook Air.

The 13" MacBook Pro weighs the same as the MacBook Air (well, the MBP is .06 lbs heavier) and is thinner than the Air at its thickest point (0.59 in. vs. 0.11 to 0.68 in.) . Apple's battery life estimate is longer for the Air than the MBP but that would not be true if they added a Retina display to the Air.

The MacBook Air is better at slicing cake than the 13"in MacBook Pro.
A fair point; I should have written that more carefully. But if Amy says, "Bob is a hypocrite and you can't trust anything he says", and Bob responds, "Amy is demonizing me" - Amy and Bob are not equally guilty of demonization.

Perhaps I should have written: There's a serious problem that large numbers of conservative leaders and elite engage in demonization and dehumanization of others, to the point where it has become normalized, acceptable political discourse for them.
I know the UK will soon not be "part of Europe", but Amazon is pretty great here. I know a few people in Italy who are over the moon about amazon.it as well. I don't know about other countries.
That shit can really screw you up. See e.g. this case right here: http://gawker.com/5941532/mma-fighter-who-ripped-friends-hea...
My entire family speaks of what they'll do with my money when the startup I work at "makes it big". I think they're 90% joking.

But that's still 10%.

I have literally gotten into fights with my Mom where she wants a GUARANTEE that if I make over x amount I will give her y amount. I just keep repeating, "This is all hypothetical, let's not discuss it" as she gets more and more upset about not locking me in.

Extraordinary.
Do you have the final say on what goes into your body or do you not?

It is only morally disgusting if the study participants are purposefully _misled_ or _forced_ to submit to the study. This is absolutely NOT the case here.
Samples rates of accelerometers are usually around 100Hz, so 10ms between each sample. Some phones might be as high as 250Hz which might start to be usable.
One challenge when using different sensors is to establish a joint timeline precisely. Might need to synchronize them with an event observed in both at the same time, like the 'clapper' used in filmmaking.
Yes, because we use Cloudwatch and we monitor DLQ events.

That should be standard operating procedure.
Cheers! Thanks for your interest. :-)
Thats....not how that works. At all.
That is hilariously accurate.
Yes, just intercept the connection or some phishing server and you are really pwned.
Discover how the activity streams trend is changing
The elephant in the room has been mentioned somewhere else these days: severe lack of planning and crumbling infrastructures.

Remarkably how ne of the few non-partisan issues on the table goes under the radar time and time again. Tongue in cheek, we might think only polemic issue get the attention of the public.

There is also the notion of national pride. We built our infrastructural base earlier than pretty much anyone else in the world, but we don't invest consistently on them anymore. Today our roads, dams etc. pale in comparison with any western country's but it seems like it's an affront to our national pride to acknowledge that.

Houston is ill prepared to face any kind of emergency like this one, and only the bravery and tenacity of the people is preventing a humanitarian disaster in the scale that would keep us awake at night. That's not the American way: planning, preparing and executing is. The sooner we start taking this leap the better.