eigendrum

(eigendrum.com)

151 points | by bookofjoe 11 hours ago

15 comments

  • totetsu 5 hours ago
    • vanderZwan 2 hours 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 57 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 53 minutes ago
            Perhaps the "hits like an x on a y" family is larger than any of us thought?
        • vanderZwan 56 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.
  • letier 16 minutes ago
    Not a fan of the cookie dialog. Had to close the page as there was no easy way to reject the ad cookies.
  • 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 47 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.
    • Ycros 3 minutes ago
      what has the world come to when people beg for stars on github
    • jmole 6 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 36 minutes ago
        You mean the cool stuff Claude built?
    • stdatomic 7 hours ago
      I just entertained myself with this for 30 minutes.
    • brcmthrowaway 4 hours ago
      Can you do this for a didgeridoo?
    • moralestapia 7 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 6 hours ago
      I didn’t get any sound on an iPhone either
    • latexr 59 minutes ago
      > Does it work on safari mobile for anyone else?

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

  • stavros 1 hour 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.
  • ttul 4 hours ago
    Try `1 + 0.16cos(4t) + 0.08cos(12t + pi/6) + 0.04cos(36t + pi/3) + 0.02cos(108t + pi/2)`
  • 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 4 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.

  • _flux 2 hours ago
    This would be quite nice as a VST/CLAP for music production!
  • esafak 7 hours ago
    • BaselAshraf81 7 hours ago
      • 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!

  • b0ringdeveloper 4 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
  • nxc18 6 hours ago
    Thanks, ChatGPT.
  • Jeff_Brown 8 hours ago
    I love it. I wish I could select materials.
    • tanderson92 7 hours ago
      Selecting different materials would not change much. Call the frequencies \lambda_1, \lambda_2, \lambda_3...

      You can prove that changing the material has no effect on the relative frequencies: \lambda_2 / \lambda_1, \lambda_3 / \lambda_1, etc. are completely independent of the material.

      The shape is the determining factor; changing the materials (and hence the wave speed) just dilates the whole spectrum.

    • BaselAshraf81 7 hours ago
      There's actually a "ring-out" slider and a "mallet" width slider under the drum already.

      Ring out controls how fast the higher modes decay (basically stiff vs soft material), The mallet width controls how many modes a strike can even reach, since a real mallet can't drive the high frequency ones very hard.

      No labeled presets like "wood" or "metal" though, just raw sliders. Would be a fun addition if someone wants to map a few physically sensible combos to buttons. PRs Welcome!

  • uwagar 4 hours ago
    amazing stuff, congrats!
  • valleyer 4 hours ago
    [dead]