52 comments

  • totetsu 1 day ago
    • vanderZwan 1 day 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 day 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 1 day 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 1 day ago
            Perhaps the "hits like an x on a y" family is larger than any of us thought?
        • vanderZwan 1 day ago
          Could be a regional thing. I've heard the pliers-on-a-pig version too, might be more common.
    • shit_game 1 day ago
      Aunty Donna were so wise.
    • amelius 1 day ago
      Now try to draw a donut.
  • rpastuszak 1 day ago
    This is brilliant! I wish I had seen this a few years back!

    Q: Generating higher quality sounds with a specified duration (e.g. within a 300ms margin) -- is it possible with your approach, is it hard, how would you go about that?

    I'm asking because a few years back I had an idea for a breathwork/meditation app that would allow you to connect / control the breath duration using a gong sound. Example pattern: 4s in, 4s wait, 8-10s out. Next: use a feedback loop with the real user breathing pattern, slowly extend towards the goal.

    Ended up with scaling it down to a "dot to stare at" + basic gong, because I realised how ridiculously chromatically complex the sound is. (my approach was to synthesise an envelope with a shape determined by time -- pity the fool who thought it was easy or even made sense!)

    https://untested.sonnet.io/notes/projects-and-apps-i-built-f...

    I got +100k people visiting it and still a couple dozen daily users running a 5+ min session, so I'm happy with it. But, the itch is still there, so I'd love to revisit my old nemesis so to speak :)

    Also, if you want to chat about this, hit me up sonnet.io/posts/hi !

  • lucb1e 21 hours ago
    Anyone else seeing "net::ERR_SSL_VERSION_OR_CIPHER_MISMATCH"? Happens both in Firefox mobile and another browser that's a thin wrapper around Google's Chromium Webview. I'm surprised nobody mentioned it yet if firefox and chromium both struggle with this site. Or do they use a common TLS engine on Android?

    Sadly http is not supported, it forces https for what I understand (from the title) to be a little web toy

    Edit: same issue on Firefox desktop on Linux. It gets the redirect from github.io and then a ciphersuite mismatch. I now guess the host got some faulty update and it's not a me issue

    • BaselAshraf81 21 hours ago
      Hi, I was propagating DNS nameservers, sorry for the delay.

      Let me know if you still face any issues.

      EDIT: The DNSSEC validation error was caused by a cached TTL mismatch during the nameserver migration. I've temporarily disabled DNSSEC while it clears up and am getting it sorted out.

    • _def 21 hours ago
      same for me
  • willf 1 day ago
    This is so dang cool. I’m sorry that all people can do is complain!
  • nmeofthestate 1 day ago
    Contemptible cookie dialog.
    • serial_dev 1 day ago
      What, didn’t you want hundreds of companies track you while you try to get the audio work on a drum simulator?
      • BaselAshraf81 1 day ago
        I am sorry about that, I thought I removed the consent banner along with the ads completely this morning, then I came back here and realized Google AdSense still had the consent banner published, I forgot to disable it, it doesn't show up to me as I am not EU I guess. Should be gone now, please let me know if something else still shows up.
    • throwaway27448 1 day ago
      Sometimes you guys sound like big babies
  • OgsyedIE 1 day ago
    Separate to the concerns about privacy others have, I found some ear-splitting pitch errors with making very narrow asterisk-shaped drums with a number of spokes not divisible by 2 or 3. Good thing my volume was low.
  • jmole 1 day 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.

  • stavros 1 day 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 1 day ago
    Try `1 + 0.16cos(4t) + 0.08cos(12t + pi/6) + 0.04cos(36t + pi/3) + 0.02cos(108t + pi/2)`
  • fl4regun 1 day ago
    This is very fun to play with and design different drums. I was able to make one that had 4 connected but distinct regions giving different pitches, then within each of those regions (which look like 4 lobes of different sizes) where you tap on that region will further change the sound! Then I realized I basically just made a hand pan.
  • isoprophlex 1 day ago
    Fun concept. Absolutely carcinogenic approach to monetization.
    • BaselAshraf81 23 hours ago
      I disabled the ads 1 hours after I seen this but I totally forgot about the consent banner, sorry for that. Hope it didn't affect your experience much.
  • andai 1 day 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 1 day 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.

      • olelele 1 day ago
        A friend told me that a Dutch university ordered a custom gamelan tuned chromatically. It was a total failure and sounds terrible. The gamelan are made one by one w the oldest member of the group making his first and everyone tuning theirs from his down in turn, IIRC.
      • g6taa 1 day ago
        Do you have a hint on how to find that video?
  • dkdbejwi383 1 day ago
    Audio doesn’t seem to work in mobile safari.
    • isubkhankulov 1 day ago
      It worked for me by unmuting my ringer and raising my volume. Agree UX isnt great.
  • Waterluvian 1 day 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 1 day ago
      I didn’t get any sound on an iPhone either
    • phoghed 1 day ago
      Yeah, just have to make sure your phone isn’t on silent for sound effects in the browser.

      Also if you use an ad blocker, which I highly recommend, you wouldn’t have seen any of the ads or other stuff most of the comments can’t seem to figure out how to avoid.

      • Waterluvian 1 day ago
        I have an adblocker. I guess it just missed.

        It’s sad though that such a non-corporate site has such nasty ads though.

        • BaselAshraf81 23 hours ago
          I am sorry for the ads, I disabled it immediately after I have seen your complaints, but I forgot about the consent banner. Hope it didn't affect your experience.
    • latexr 1 day ago
      > Does it work on safari mobile for anyone else?

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

  • prabhanjana_c 1 day ago
    actually too cool. very addictive, while changing different parameters and playing.
  • hn_submit 1 day ago
    Could something like this be used to design speakers?
    • BaselAshraf81 23 hours ago
      I think the optimal would always be a circular speaker. But I like the way you think. It's like building a car with triangular glass wheels.
    • dboreham 20 hours ago
      Something like this is used to design speakers (and countless other things).
  • thetimewotitis 1 day ago
    I would love you to get all this in JUCE or w/ever and make a plugin.

    have you seen https://differentinstruments.com/ ?

  • _flux 1 day ago
    This would be quite nice as a VST/CLAP for music production!
  • esafak 1 day ago
    • BaselAshraf81 1 day ago
      • gspr 1 day 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!

  • codedokode 1 day ago
    It seems to simulate only the membrane, and not the body of the drum, so no bass drum, no snare and no hi-hats?
  • stdatomic 1 day ago
    I just entertained myself with this for 30 minutes.
  • eigenblake 19 hours ago
    I approve.
  • peter_d_sherman 1 day ago
    What a great visualizer tool!

    Observation: I never saw the link between Wave Equation Solvers, Finite Element Analysis (Eigenvalues, Eigenvectors, etc.) and Cymatics -- until I visited the above web page!

    Related:

    Cymatics: Chladni Plate - Sound, Vibration and Sand:

    https://www.youtube.com/watch?v=tFAcYruShow

    Cymatics:

    https://en.wikipedia.org/wiki/Cymatics

  • Myzura 1 day ago
    Can it remain stable at a certain MHz?
  • Y_Y 1 day ago
    The tone is kind of snippy. It refuses to play when there would be numerical artifacts ("there would be numbers, and they would be wrong") and if your drawn shape self-intesects it complaint rather than just giving a reasonable answer with a warning (minimum crossing width, separate bodies).

    Overall a cool tool, but pretty annoying. I point it out not really to criticize this project, but because I see a trend in software that has a holier-than-thou sort of paternalistic tone. LLMs are obviously rife with this, but I also see interfaces from some humans that give me the vibe of a snooty Parisian waiter.

  • Jeff_Brown 1 day ago
    I love it. I wish I could select materials.
    • tanderson92 1 day 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 1 day 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!

  • b0ringdeveloper 1 day ago
    I'm not sure if I'm learning a lot. All of the shapes and click locations basically sound the same to me.
    • mh- 1 day ago
      Make sure your SoundBlaster16 drivers are loading properly, because I don't think I heard two clicks that sounded the same.
  • bowsamic 1 day ago
    Very cool, reminds me of some of Aphex Twin’s percussive elements
  • nxc18 1 day ago
    Thanks, ChatGPT.
  • joeyoung111 1 day ago
    this is pretty cool
  • jLaForest 1 day ago
    Why does the submitted link redirect? Is that allowed on HN
    • BaselAshraf81 1 day ago
      It was hosted on github pages before buying a domain, you can directly visit eigendrum.com, sorry for the confusion!
  • squigz 1 day ago
    > If you find it interesting, a star on the GitHub repo helps a lot.

    I am genuinely curious, how?

    • abcd_f 1 day ago
      Probably looks good on the resume?
      • BaselAshraf81 23 hours ago
        That's one thing, and I would also like to be known in the dev world, with my ideas, what I build, and be famous for something I love doing.

        I don't really care as much about the resume but I have to, I just graduated college.

        My open source journey is starting and I want my creativity to be heard and seen.

        Hope I answered your question :)

  • chrisjj 1 day ago
    Great! I vote for a skin tension control.
  • karloproducer 1 day ago
    should be a vst intrument
  • brcmthrowaway 1 day ago
    Can you do this for a didgeridoo?
  • uwagar 1 day ago
    amazing stuff, congrats!
  • moralestapia 1 day ago
    This is very cool stuff, indeed!
  • metalman 1 day ago
    very nice! but having the "this space for rent" , space is the thing that realy says that it's someone doing there thing, everything is cool, no worrys, here play with a drum, and you knid of know that whoever might go in that space will be truely random, and interesting to some further subset of those that jump at an internet drum thing. thanks!
  • Ycros 1 day ago
    what has the world come to when people beg for stars on github
    • fragmede 1 day ago
      Merely asking is begging?
  • aureate 1 day 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.
    • BaselAshraf81 1 day ago
      I am sorry about that, I thought I removed the consent banner along with the ads completely this morning, then I came back here and realized Google AdSense still had the consent banner published, I forgot to disable it, it doesn't show up to me as I am not EU I guess. Should be gone now, please let me know if something else still shows up.
      • aureate 1 day ago
        Much appreciated, and it is indeed very interesting!
  • BaselAshraf81 1 day 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!

  • letier 1 day ago
    Not a fan of the cookie dialog. Had to close the page as there was no easy way to reject the ad cookies.
    • andrelaszlo 1 day ago
      Yeah, I'm no GDPR expert but it seems completely unreasonable that the "legitimate interest" numbers add upp to 2825. Even though there's probably some overlap, the biggest category is "Measure advertising performance (695 partners included)". How does this dialogue help me control who gets my data or how it will be used?
      • slhck 1 day ago
        It's not even unreasonable, it's illegal under GDPR. You have to provide a reject all option (for rejecting all non-necessary cookies).
    • efilife 1 day ago
      Same. I no longer tolerate this bullshit
  • bromuro 1 day ago
    I wanted to try it but it talks to share my data to the 1192 partners of yours. How do you have so many partners, and what they do?
    • BaselAshraf81 1 day ago
      I am sorry about that, I thought I removed the consent banner along with the ads completely this morning, then I came back here and realized Google AdSense still had the consent banner published, I forgot to disable it, it doesn't show up to me as I am not EU I guess. Should be gone now, please let me know if something else still shows up.
  • srean 1 day ago
  • abcd_f 1 day ago
    Make it possible to reject all cookies in one click.

    What you have now is ridiculous.

  • discordance 1 day ago
    Those ads are nasty and really take away from the cool stuff you build!
    • slhck 1 day ago
      [flagged]
      • epiccoleman 1 day ago
        This meme is becoming extremely tiresome. This thing is cool, which should be enough. If you don't find it cool you can just click the next thing. As someone who's spent lots of AI time I still find this impressive.

        Let's see your version, since it's so easy to prompt one up.

        • slhck 1 day ago
          I didn't even know that was a meme. I have vibe coded various projects too, but I find the overzealous monetization very much off-putting. This, paired with the Opus writing all over the place. Seems more like grifting than an actual interest in the topic.

          https://github.com/BaselAshraf81/eigendrum/commit/733a7a08b2...

          Edit: Seems the advertising is removed now.

          • stdatomic 1 day ago
            Had no idea it had ads. Thank you ublock origin <3
      • phoghed 1 day ago
        You mean the shitty comment your keyboard typed?
      • fragmede 1 day ago
        Do you drive a friend to the airport or does your car do most of the work?
  • gwerbin 1 day ago
    > Pitch here is a reference: the note a circle of this area would sound. Tension and density are yours, and so is fade, which is material and air. Where each shape's own fundamental lands above that reference is not yours, and neither is any overtone ratio. Both are computed.

    You might want to do a human editing pass on the copy. This reads like it came right out of your Claude Code session.

  • xiaomufelt 1 day ago
    [flagged]
  • valleyer 1 day ago
    If the author is here, do yourself a favor and rewrite the app's labels from Claudese to English.

    "what the shape does not decide: Pitch is size and tension; fade is material and air. Neither is in the outline, so both are yours."

    • curt15 23 hours ago
      "No build step and no application backend: the mesh, the solve and the audio all run on your own machine."
  • hnlqpx99l9 1 day ago
    [dead]
  • tonetheman 1 day ago
    [dead]