Alternatives
Products that do what Emotive Engine – Animation engine with musical time (not milliseconds) does
Hey HN! I'm the creator of Emotive Engine. I've been working on this for 2+ years and finally open-sourced it today. The core idea: Most animation libraries work in milliseconds. Music works in beats. This creates a mismatch - hardcode a bounce for 500ms (perfect at 120 BPM), switch to 90 BPM, and everything drifts because 500ms is now 0.75 beats. Emotive Engine uses musical time as the atomic unit. Specify animations in beats, and they automatically become: - 500ms at 120 BPM - 667ms at 90 BPM - 353ms at 170 BPM Change tempo, everything adjusts. No recalculation needed. Built for AI…
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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.
17d ago · simedw.com
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I went nuts on Sunday after stumbling on this animator script for the automatic branch: https://github.com/Animator-Anon/Animator And then it's a ton of keyframing. I also found that the timings all have to be earlier than the timestamp you want to account for how long it takes to denoise to your new scene - so like .4 gives smoother but longer, .7 is snappy. To get stuff to keep showing up and stay dynamic you can zoom out continuously, it needs a UI, badly. If you're on windows you'll need ffmpeg too. I watched this when it came out last week:…
2022 · old.reddit.com
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2016 · alexnisnevich.github.io
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YO, I’m Ryan, lead author. I’ve been contributing open source generative audio stuff for a while now, audio reactive Comfy nodes, extended ACEstep support in Comfy, etc.. I just opened-sourced a new audio project that I've been working on for a few months and I want to tell y'all about it. WHAT IS IS DEMON: Diffusion Engine for Musical Orchestrated Noise This is StreamDiffusion but with audio instead of images, and ACEStep 1.5 instead of Stable Diffusion. It’s responsive enough that you can play it like an instrument, and remix in near real-time. I also distilled the ACEStep VAE: it’s faster…
May 2026 · daydreamlive.github.io
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Inspired by the recent Boards Of Canada announcement, I've been in a low-fi electronica mood lately and was going back and forth with Claude on how to design similar instruments in the browser that fit the genre. One thing led to another and pretty soon I had a fully browser based polyphonic synthesizer / drum machine / sequencer. The interface and workflow was heavily inspired by the Rebirth338 application released back in the 90's, but with lo-fi synth voices rather than the original 303 & 808 emulation. I know there's a significant overlap of developers and musicians and I…
May 2026 · github.com
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Hi HN, Gabriel here. This is a standalone binaural beat generator, combined with a two-deck local audio player built with the Web Audio API. It includes ten harmonic carrier pairs, seven brainwave-state presets, per-harmonic mixing (so the binaural tones aren't out-of-tune with the music), adjustable beat and carrier frequencies, two oscillator shapes, offline key/BPM analysis, automatic carrier matching, adaptive impulse noise, playlist support, and output recording. The main problem I've had with existing "binaural beat" generators is that the tone generated does not remain in-tune…
Jul 2026 · github.com
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I've been tinkering with a browser-based rhythm game creation tool. The pitch is simple: AI makes the music, Essentia.js figures out the beats, and you write the game logic in JS. Demo: https://rhythm-seodang-web.vercel.app/ The problem I wanted to solve: most rhythm game workflows are heavy. Proprietary editors, manual charting, fixed gameplay patterns, desktop-only. I wanted something where you could just... open a browser tab and start messing around. How it works: - Music comes from AI services (Suno/Udio). No user uploads, no copyright headaches. - Essentia.js (WASM…
Dec 2025 · rhythm-seodang-web.vercel.app
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This toy retro synth installs and runs on esp32-s3 or p4 as an ELF file under BreezyBox firmware. It uses my work-in-progress immediate mode TUI library in C. Web-based version via emscripten: https://mini000.itch.io/beeper Source code: https://github.com/valdanylchuk/beeper Demo video running on Tanmatsu (esp32-p4): https://www.youtube.com/watch?v=uCH9XYZ7QB0 The main challenge I was going for was actually to find a nice minimal set of controls for a subtractive synth. Usually there are 40-50 of them in "simple" synths; I ended up with 16.…
Jul 2026 · mini000.itch.io
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Showing this on behalf of a friend here. A friend has built a copilot for music creation - CassetteAI. It generates music from text using the inputs you provide to it. It uses a Latent Diffusion Model trained on just instrumental audio to "imagine" music in its latent space to generate beats. Would love to hear your feedback!
2023 · cassetteai.com
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I have been entranced by Berlin School music for years. I love those evolving and interwoven arpeggios. Latching an arp is often my favorite way to noodle on a synth, and yes it’s because I can’t play to save my life. Last month I got tired of waiting for someone else to build my dream arp machine, so I built my own in the form of a web synth. It is purpose-built for sculpting and performing with melodies. I call it the AM-1 Arpeggio Machine. My next goal is to port the web engine into hardware format (using the Daisy Seed). But in the meantime, since the web app is perfectly usable, I…
23d ago · crux.garden
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As a side project for a hockey manager game, I created a small audio tracker, "HM Tracker," which was used to make the game's music. It is a browser-based tracker-style music workstation. All sound is procedurally generated from oscillators - no samples, no plugins. The UI lets you edit patterns on a step grid, pick instruments and chords, then export as a standalone JS music engine or WAV file. Built with vanilla JS and the Web Audio API (best experienced on a desktop browser). Made in the '90s demoscene spirit (at least the looks, anyway). Would love any feedback!
Mar 2026 · manager.kiekko.pro
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I've been working on a C-based open source sound engine as part of a book project and wanted an approachable way for people to try it out without having to build anything. Through the magic of emscripten (which I'm totally amazed by) and miniaudio (which has given me new life late in my development career), and a smidge of vibe-coded HTML/JS (web-dev is not my jam), this page will let you try out the tooling. I gave a lightning talk on the ASCII notation at ElixirConf EU last month here: https://www.youtube.com/watch?v=SnJ0osgiqWM There's a work-in-progress tutorial for…
May 2026 · octetta.github.io
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We’re a group of electronic music artists and PhD researchers working in AI music. We've been working on a project to help us discover new music in a more objective way. It's called Speak Music: https://speakmusic.sonophase.com/ We’ve trained an AI model to understand the correspondence between music and language. The model combines a machine listening and audio signal processing with transformers for text embeddings. Once trained, we index a huge catalogue of unseen audio, ensuring that the search system can efficiently scale to millions of tracks. At the moment, our model is…
2023 · speakmusic.sonophase.com
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2020 · github.com
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Have been making music using ML/AI tools for about as long as I've been on HN. Had a recent comment section on HN here [1] and after that thought it might be worthwhile to write out about the journey in greater detail... from crude LSTM models, to hacking around with Jukebox, and now Suno. [1]: https://news.ycombinator.com/item?id=45388822
Dec 2025 · songxytr.substack.com
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