nowfound

Life & fun · November 22, 2024

Jamcorder

World's first automatic piano recorder

Jamcorder launched on November 22, 2024 with 124 votes, #364 of 4,990 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 1 year on.

Visit jamcorder.com ↗Jamcorder alternativestop 7% of November 2024

What it does

Jamcorder is a new way to record your piano. Truly set & forget, you never need to hit record. Instead, just open the app and all your music is right there. Jamcorder stores 25,000 hours of music, right out of the box. So you can focus on playing and just Jam.

Have you ever thought, “wow, I wish I recorded that”? With Jamcorder, you did. Jamcorder is a tiny device you attach to your digital piano that quietly captures everything you play — effortlessly, for life. With automatic play detection and over 25,000 hours of included storage, that’s 3 non-stop years of music , it turns everyday practice into visible progress and a growing personal archive to revisit and share. It's more than a recorder — it’s your journal of growth, ideas, and moods. Sit down, play, and every moment becomes part of your story, nudging you to play with more intention and focus. Once you try Jamcorder, you’ll never want to go back. It shows in our reviews . Have you ever…from jamcorder.com

Does a similar job

all alternatives →
  • I made a tiny device for automatically recording digital pianos2024 · jamcorder.com · ▲590

    Hey HN! A few years ago, I left my cushy big tech job to make hardware. And made the device I always wanted - an automatic piano recorder! I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are! Hopefully it scratches a similar itch for some of you as well! A few of the tech details: * built on an esp32-s3 * custom injection molded enclosure * BLE comms, sd card storage, DS1302 RTC * android & ios apps with Flutter * Shadertoy vfx support for video sharing - Chip

  • I made a free app to calibrate your turntable by simply playing a song2024 · grooved.okat.best · ▲452

    Hey there! I made a little app that lets you to calibrate your turntable by putting on any record and tapping a button. It's called Grooved and it uses your phone's microphone to see how fast your platter is going, almost like magic. You can see what it looks like in action here: https://twitter.com/OKatBest/status/1795453042994680148 The app itself is free without ads, subscriptions, or trackers. It's a tool I built for myself, and I just thought someone else might want to use it too. I have never seen this technology being used before, all other apps require you to…

  • I trained a 125M model to autocomplete piano on-deviceAug 2026 · simedw.com · ▲598

    I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.

  • PianolyzeNov 2025 · pianolyze.com · ▲149

    Hey HN, I'm a pianist who's always been obsessed with understanding how great players think through harmony. What voicings are they using? How do they voice lead through changes? What's actually happening under their hands? Back in 2022, I built Harmonic Analyzer (https://www.youtube.com/watch?v=iNgSgvUmiOs) – a Mac app that used ML to transcribe polyphonic piano recordings. It got some traction, but I never quite finished it. Requiring users to download a Mac app felt like unnecessary friction, and I didn’t want to limit distribution to Mac users. I just shipped Pianolyze…

  • Harmonic Analyzer2022 · nickplee.com · ▲122

    Learn how to play your favorite piano songs using ML

  • Jammer2017 · ▲97

    Turns songs into musical instruments anyone can play

More life & fun this month

the category →

Source: Product Hunt launch ↗

Launched alongside, November 2024

the whole month →
  • Lovable▲1,477

    Hey HN! Previous CERN physicist turned hacker here. We've developed a way to make AI coding actually work by systematically identifying and fixing places where LLMs typically fail in full-stack development. Today we're launching as Lovable (previously gptengineer.app) since it's such a big change. The problem? AI writing code typically make small mistakes and then get stuck. Those who tried know the frustration. We fixed most of this by mapping out where LLMs fail in full-stack dev and engineering around those pitfalls with prompt chains. Thanks to this, in all comparisons I found with: v0,…

    AI · 2024 · lovable.dev

  • Superchat▲1,427

    AI Agents for WhatsApp Business, Instagram & Co

    Growth · 2024 · superchat.com

  • Postiz▲1,188

    Streamline your social media with Postiz. Schedule posts, analyze performance, and manage all accounts in one place.

    Dev tools · 2024 · postiz.com

  • I built a(nother) house optimized for LAN parties▲1,117

    I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https://github.com/kentonv/lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…

    Dev tools · 2024 · lanparty.house

  • Raycast Notes▲1,058

    Unlock a new level productivity with AI, Cloud Sync and more

    Work · 2024 · raycast.com

  • Cap▲1,047

    Beautiful screen recordings, owned by you. 100% open source.

    Dev tools · 2024 · cap.so