HNHacker News
TopNewBestAskShowJobs

camtarn

7,218 karma · joined March 16, 2009

Hi! I'm Andy Walker. I'm a programmer living in Edinburgh, Scotland. In my spare time I'm interested in all things musical.

You can find me here:

http://camtarn.org

I work here, linking industrial control platforms with analysis databases and dashboard websites amongst other things:

http://www.sequentec.co.uk

The opinions posted by this account in no way represent the opinions of my employer.

submissionscomments
camtarn··on Visa and Mastercard are getting overwhelmed by gamer fury over censorship
Yes, I think GGP was being hyperbolic.

Still a shameful state of affairs.

camtarn··on Visa and Mastercard are getting overwhelmed by gamer fury over censorship
https://globalaffairs.org/commentary-and-analysis/blogs/unho...

"...many extreme evangelical groups started to recognize that the fight against LGBTQ+ rights in the United States was a losing battle. These groups then shifted focus to Uganda, which was seen as fertile ground for this anti-gay ideology..."

camtarn··on Show HN: Use Their ID – Use your local UK MP’s ID for the Online Safety Act
This is hilarious. Very well done.
camtarn··on 200k Flemish drivers can turn traffic lights green
Thank you, this is a much better explanation than in the article.
camtarn··on Python audio processing with pedalboard
Ah that's really interesting, thank you!
camtarn··on Python audio processing with pedalboard
That's really cool!
camtarn··on Python audio processing with pedalboard
That's a lovely little bit of hardware, and it's not actually that expensive too! Great recommendation, thank you.
camtarn··on Python audio processing with pedalboard
If I was looking for a digital pedalboard device I'd want something that was extremely rugged, never had software issues or forced me to download updates, and booted up within about 10-15 seconds (that's how long the digital pedals on my actual pedalboard take to boot). It also needs a case with, at the very least, a couple of patch change switches and an on/off switch; but preferably a lot more.

The ruggedness and built-in controls are really important. I used to gig with a standard laptop + audio interface + multiple MIDI controllers. The external gear was a real hassle to set up, even with everything labelled with bright coloured tape so I could just match colour to colour while plugging it in. And eventually the laptop got knocked over and fell a couple of feet onto a wooden stage - and even that minor impact smashed the screen, which was glued in so I couldn't replace it. I also have a horror story about a machine rebooting to apply Windows updates in the middle of a gig and requiring the rest of the band to improvise until I was done! I don't really gig any more, but if I took it up again, I would switch to using as much hardware as I could.

But I really don't care about actual analog devices. I already have a decent few DSP-powered pedals on my pedalboard and I cannot tell the difference, other than the true analog ones are more noisy!

camtarn··on AccountingBench: Evaluating LLMs on real long-horizon business tasks
I wonder if parent post is alluding to the number of hours spent bookkeeping? As a percentage of somebody's time, I could see that getting reasonably expensive.
camtarn··on Python audio processing with pedalboard
GitHub: https://github.com/spotify/pedalboard

Sadly, although it supports realtime processing, it doesn't say anything about latency, which is a make-or-break quality for most realtime audio processing. Definitely feels like a batch processing library which has had realtime support bolted on. The VST support is extremely cool though!

camtarn··on Beyond Meat fights for survival
The market must be very different in the US. In the UK, Beyond Meat is the most expensive meat free option in my local supermarket, other than one type of fake steak. There are some other premium brands at slightly lower prices, then cheaper brands, and finally supermarket own brands.
camtarn··on Texas has banned talking on college campuses at night. Seriously
I think the article answers this pretty well. The bill has text about not being construed as restricting any first amendment rights while simultaneously banning all 1A activity within certain hours. That just seems like a really stupid contradiction, and one that's likely to rile people up, compared to a drafting which just says "here are a list of protest activities which are allowed in the day and banned at night", which I feel was the intent of the bill.
camtarn··on Texas has banned talking on college campuses at night. Seriously
The bits of the bill in question which are applicable:

---

"Expressive activities" means any speech or expressive conduct protected by the First Amendment to the United States Constitution or by Section 8, Article I, Texas Constitution, and includes assemblies, protests, speeches, the distribution of written material, the carrying of signs, and the circulation of petitions.

...

Each institution of higher education shall adopt a policy detailing rights and responsibilities regarding expressive activities at the institution. The policy must:

...

Prohibit:

...

engaging in expressive activities on campus between the hours of 10 p.m. and 8 a.m.

---

That's pretty clear cut, to be honest. Like the article says, the intent is probably much more limited, but it literally says "any speech or conduct which is protected under the first amendment is banned". That's just really poor drafting indeed.

camtarn··on Show HN: 0xDEAD//TYPE – A fast-paced typing shooter with retro vibes
Typing to destroy blocks is pretty satisfying, but I really disliked the W/S to move.
camtarn··on Cracking into a Just Eat / Takeaway.com Terminal with an NFC Card
I am, sadly, not the author :)
camtarn··on Aerated Bread Company
Quite a remarkable history for a company I had never heard of! The aerated bread process, invented by its founder John Dauglish, involved forcing pressurised carbon dioxide into dough, and was the primary way of making industrially produces bread for nearly a century until the Chorleywood process replaced it in the 60s. Later, the firm had a chain of tearooms that were so omnipresent that George Orwell, Bram Stoker and Agatha Christie referenced them in their writing.
camtarn··on Worldwide power grid with glass insulated HVDC cables
Traditionally, yes.

Hollow air core fibre does exist and seems to be touted as the next big thing though.

https://www.optcore.net/hollow-core-fiber-introduction/#h-wh...

camtarn··on Covert web-to-app tracking via localhost on Android
I'm not sure I get it. Why isn't the status board just part of the app itself - why does it need to be accessed via browser?
camtarn··on Show HN: I built an old photo restoration tool using the Flux Kontext
In both of your example images with young men, it's added stubble where there was none. It's also removed moles from Einstein's face.

This doesn't seem to be very accurate!

camtarn··on The scientific “unit” we call the decibel
I have no idea what you mean here. Exotic containers? I'm talking about something like a measuring cylinder or a straight-sided glass or mug.

This StackOverflow answer probably does the subject more justice than I can: https://earthscience.stackexchange.com/questions/14587/what-...

but I'll try and explain it succinctly:

What you're measuring is the volume of rain falling per unit area in a given time (usually 24 hours). If you're collecting rain in a vessel, you divide the volume collected by the area of the vessel's mouth to get the volume collected per unit area. And in order to measure the volume in the container, you measure the height of the water and multiply by the area of the vessel's bottom.

If the bottom and mouth have the same area, those cancel out and you can just specify the rain height regardless of the size of the container. That is, if you have 1ml of rain falling per square mm over 24 hours, it will produce the same height of water if you set out a big container or a small container, as long as the containers have straight walls.

If they don't have the same area, then you can't use the handy mm unit.

camtarn··on I have tinnitus. I don't recommend it
As another commenter posted above, this seems to be known as 'sudden brief unilateral tapering tinnitus'. It seems fairly normal.

https://pubmed.ncbi.nlm.nih.gov/21970850/

camtarn··on I have tinnitus. I don't recommend it
Not necessarily because of the band members, but yeah, you want to cover up the noise of people chattering away in the back.

Music can also sound better when it's louder, up to a certain point - if you're recording and mixing a piece of music, you want to do so at a very moderate volume, because if you crank it up loud some of the imbalances in the mix become less obvious.

That said, there's 'loud enough that the music sounds good and you're mostly hearing music and not audience', and then there was the Prodigy concert I went to, where I was wearing earplugs and my ears still hurt. Amazing concert, but holy crap, probably the loudest situation I've ever encountered. I've also been right in front of the speakers at a festival dance tent, and my earplugs rattled due to sound pressure, which was unnerving but quite funny.

camtarn··on I have tinnitus. I don't recommend it
Aether noise is a great name for it. Just really quiet broad-spectrum noise.

I remember reading a long time ago that it was caused by "the neurons in your ears occasionally randomly firing" but I cannot find any source for that, so assume that it's untrue :)

camtarn··on How we made our OCR code more accurate
Neat article, but I feel like I have no idea why they're doing this! Is transcribing code from images really such a big use case?
camtarn··on The scientific “unit” we call the decibel
...as long as the container has straight sides. The area of the opening needs to be the same as the area of the container all the way down, otherwise the two areas don't cancel out.
camtarn··on The Windows Subsystem for Linux is now open source
Yes, exactly, this is well known. So the parent post seems incorrect.
camtarn··on The Windows Subsystem for Linux is now open source
Hm. I used Git on WSL1 for many years, with medium sized repos hosted on a Windows drive, and it worked great. When I moved to WSL2 Git became a whole lot slower - it now takes about 5-8 secs to execute 'git status' where before it was instant.
camtarn··on Mystical
Wow, that's gorgeous.
camtarn··on Reviving a modular cargo bike design from the 1930s
Oh, nice, the state of the art has advanced since I last read about hub gears, which was ... oh dear, about twenty years ago? No wonder things have improved :)
camtarn··on Reviving a modular cargo bike design from the 1930s
You've not come across hub gears on bikes before, have you? They were pretty much the standard before derailleur gears became popular, and modern ones can have up to 7 speeds.
← PreviousPage 2 of 33Next →