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Posted by bookofjoe 10 hours ago

eigendrum(eigendrum.com)
146 points | 36 comments
totetsu 5 hours ago|
“Everything’s a Drum!”

https://eigendrum.com/#s=__Ap66fz1em9-NXp7_6a6-0AJu1AAiTv6gK...

vanderZwan 1 hour ago||
So in Dutch one expression for "that makes no sense" is "dat slaat nergens op", which literally translates to "that doesn't hit (slap, beat) anything".

A ruder variation of that is "dat slaat als een … op een drumstel", or "that hits like a … on a drum set".

For some reason I felt like sharing this trivia.

spockz 1 hour ago||
I never heard “op een drumstel”, always “op een varken”. So it would be “Dat slaat als een tang op een varken.” Or “That hits like pliers on a pig.”
isoprophlex 35 minutes ago|||
"Als een tang op een varken" is the common one for me as well. Runner up: "Als een lul op een stadsbus" (it makes as much sense as a dick against a city bus)
vanderZwan 31 minutes ago||
Perhaps the "hits like an x on a y" family is larger than any of us thought?
vanderZwan 34 minutes ago|||
Could be a regional thing. I've heard the pliers-on-a-pig version too, might be more common.
shit_game 1 hour ago||
Aunty Donna were so wise.
BaselAshraf81 7 hours ago||
Thanks for reposting this! I'm the developer (BaselAshraf81) - happy to answer questions or hear suggestions here.

If you find it interesting, a star on the GitHub repo helps a lot.

And don't forget to follow me on github, I build cool stuff!

aureate 25 minutes ago||
The title alone sounds like this would be interesting, but I'll never know if it is because it has a trackers popup listing thousands of "partners" and a load of "legitimate interest" boxes ticked by default. This is Daily Mail level stuff, immediate back button for me.
jmole 5 hours ago|||
This reminds me of a tongue drum I have. Have you thought about building an iterative solver for specific scales?

It would be interesting if you could simulate and then print (or laser cut) your own instrument on demand.

discordance 6 hours ago|||
Those ads are nasty and really take away from the cool stuff you build!
slhck 14 minutes ago||
You mean the cool stuff Claude built?
stdatomic 6 hours ago|||
I just entertained myself with this for 30 minutes.
brcmthrowaway 4 hours ago|||
Can you do this for a didgeridoo?
moralestapia 6 hours ago||
This is very cool stuff, indeed!
Waterluvian 7 hours ago||
I tapped twice and got nothing but sketchy popup ads suggesting I need to install a VPN. Does it work on safari mobile for anyone else?
totetsu 5 hours ago||
I didn’t get any sound on an iPhone either
wickedsight 1 hour ago||
You need to disable mute.
latexr 37 minutes ago||
> Does it work on safari mobile for anyone else?

It does for me. But I do use an ad blocker (Wipr 2).

ttul 3 hours ago||
Try `1 + 0.16cos(4t) + 0.08cos(12t + pi/6) + 0.04cos(36t + pi/3) + 0.02cos(108t + pi/2)`
stavros 38 minutes ago||
This website has a list of data vendors 200 pages long, and it forces you to uncheck each one if you don't consent. I decided to close the tab rather than deal with this illegal dark pattern.
andai 8 hours ago||
Very cool. Number keys and QWERTYU (or clicking the rows on the right) trigger the "modes" in isolation, which are surprisingly microtonal.

Also you can draw your own drums! What! That's so cool

plaguuuuuu 3 hours ago|
there's an amazing video on youtube about how metal bar/gong instruments (like gamelans) have different overtones, and regular western intervals instead of being consonant (like with vibrating strings) are dissonant - even perfect 5ths - and a totally different set of intervals are consonant (slendro and pelog tunings are a bit different for this reason).

thinking about it, each drum here would have totally different ideal scales to the others.

this is cool.

g6taa 3 hours ago||
Do you have a hint on how to find that video?
telotortium 1 hour ago||
It’s “The Physics of Dissonance”: https://youtube.com/watch?v=tCsl6ZcY9ag
_flux 2 hours ago||
This would be quite nice as a VST/CLAP for music production!
b0ringdeveloper 3 hours ago||
I'm not sure if I'm learning a lot. All of the shapes and click locations basically sound the same to me.
bowsamic 3 hours ago||
Very cool, reminds me of some of Aphex Twin’s percussive elements
esafak 7 hours ago|
https://en.wikipedia.org/wiki/Hearing_the_shape_of_a_drum
BaselAshraf81 7 hours ago|
https://www.jstor.org/stable/2313748
gspr 3 hours ago||
I've read hundreds of papers in my mathematics career, and they – good and bad – almost always blend into eachother and turn into a diffuse fog in my memory, where they're identified by "that good one by Johnson-something-I-think.. no the 90s one I think".

There are very few exceptions. Kac's drum paper is one. It's so nicely written!

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