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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 NoiseThis 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 at the expense of some quality.I also trained something like 200 lora/dora for ACEStep 1.5 and 1.5XL: I will release these in batches of 5 or 10 or somethingWHY IT IS
Two reasons:
1) Making music is an inherently real-time activity
2) Why not broSOME RUNTIME CAPABILITIES
-Real-time remixing of songs
-Denoise, structure, timbre strength adjustment
-Reference track swapping
-Prompt blending, parameter scheduling with curves
-LoRA hotswapping, runtime strength adjustment
-Latent channel (research preview)
-Feedback
-Vocal stem cutting/pasting with melformer (s/o u/BuffMcBigHuge)
-XL support (its less stable, working out VRAM pressure issues and whatnot)
-Lyrics/vocals SOON
-Spectral quality SOON
-Other stuffSOME LIMITATIONS
-ACEStep (correctly) ‘begins’ and ‘ends’ the song. This system is optimized for remixing either an entire song, or continuously remixing a loop. The loop works fine, but this is not pure, continuous music. Autogression wins here.
-Many others, for a more exhaustive list, please see the full writeup via the project page
-Please let us know if you find any, I would love to try and address them if possibleLINKS
My YouTube (DEMON tutorial): https://youtu.be/FBv1b5gmjcE
Github: https://github.com/daydreamlive/DEMON
Project page: https://daydreamlive.github.io/DEMON
LoRA: https://civitai.com/models/2416425/acestep-loras
DreamVAE: https://huggingface.co/daydreamlive/DreamVAE
Try it w/o installing: https://music.daydream.live
Show HN: Demon – open-source real-time music diffusion engine, 25Hz local GPU
An open-source, real-time music diffusion engine, analogous to StreamDiffusion for audio, enabling near real-time remixing and instrument-like playability of generative music with ACEStep 1.5.
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AI Executive Synthesis
An open-source, real-time music diffusion engine, analogous to StreamDiffusion for audio, enabling near real-time remixing and instrument-like playability of generative music with ACEStep 1.5.
DEMON targets the burgeoning generative AI music market, specifically addressing the need for real-time interaction in music creation. By adapting diffusion models from images to audio and optimizing for '25Hz local GPU' performance, it enables musicians to 'play it like an instrument' and 'remix in near real-time.' This capability directly challenges traditional, often post-production-heavy music workflows. The open-source nature, coupled with extensive LoRA/dora releases, fosters community engagement and rapid iteration. While limitations exist (e.g., non-continuous music generation), DEMON represents a significant step towards democratizing advanced AI-driven music production, potentially disrupting existing digital audio workstation (DAW) paradigms and empowering a new generation of real-time audio artists.
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What is Demon – open-source real-time music diffusion engine, 25Hz local GPU?
Demon – open-source real-time music diffusion engine, 25Hz local GPU is analyzed by our AI as: An open-source, real-time music diffusion engine, analogous to StreamDiffusion for audio, enabling near real-time remixing and instrument-like playability of generative music with ACEStep 1.5.. It focuses on DEMON targets the burgeoning generative AI music market, specifically addressing the need for real-time interaction in music creation. By adapting ...
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Data for Demon – open-source real-time music diffusion engine, 25Hz local GPU was aggregated directly from the Hacker News community ecosystem, representing raw developer and early-adopter sentiment.
When was Demon – open-source real-time music diffusion engine, 25Hz local GPU publicly launched?
The initial public indexing or launch date for Demon – open-source real-time music diffusion engine, 25Hz local GPU within our tracked developer communities was recorded on May 28, 2026.
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Demon – open-source real-time music diffusion engine, 25Hz local GPU has achieved measurable traction, logging over 15 traction score and facilitating 11 recorded discussions or engagements.
Which technical categories define Demon – open-source real-time music diffusion engine, 25Hz local GPU?
Based on metadata extraction, Demon – open-source real-time music diffusion engine, 25Hz local GPU is categorized under topics such as: open-source, generative audio, audio reactive Comfy nodes, ACEStep 1.5.
What are some commercial alternatives to Demon – open-source real-time music diffusion engine, 25Hz local GPU?
Our semantic intelligence engine identifies potential commercial alternatives in the SaaS space, such as Velo 3.0, which offers overlapping value propositions.
How does the creator describe Demon – open-source real-time music diffusion engine, 25Hz local GPU?
The original author or development team describes the product as follows: "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..."
Community Voice & Feedback
Mind blown! This is absolutely sick.
Wow this is so cool! Do we have VST support?
can you explain performance differences vs Magenta / Lyria? that's the most similar thing I can think of
this is sick and why not bro!!what was the biggest unexpected unlock you got while building this? like was there something that just worked out unexpectedly easy compared to the rest?also, another question, how much time it took you to build this thing all together?
incredible piece of work
Let's talk more about why it is reason number 2.
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