Pioneering Local-First Audio AI on Apple Silicon
StemSplitter Studio was founded with a singular mission: to liberate audio creators from cloud subscriptions, remote server queues, and privacy compromises by putting world-class neural stem isolation directly onto your Mac.
The Origin of StemSplitter Studio
In early 2025, software engineer and founder Juan Carlos González (@malkomich) found himself up against a persistent roadblock while preparing creative audio sessions: state-of-the-art stem isolation had been completely captured by walled-garden cloud platforms.
The audio tech landscape had settled for an unacceptable status quo:
Endless monthly SaaS subscriptions ($15–$30/mo), slow upload queues, compressed exports, and the non-negotiable risk of uploading unreleased studio masters to third-party servers.
Academic terminal scripts plagued by brittle dependencies, constant breakage with macOS updates, and zero integration with actual DJ & studio workflows like Camelot harmonic keys or transient slicing.
With modern Apple Silicon architecture (M1 through M4) packing dedicated Neural Engines and massive unified memory bandwidth, sending private master audio over the internet made zero technical sense.
Driven to build a tool worthy of demanding creators, Juan Carlos engineered StemSplitter Studio from first principles: an uncompromising, native desktop workstation powered by Demucs v4 and hardware-accelerated via Apple Metal Performance Shaders (MPS). Fast, private, studio-grade, and owned outright with a single lifetime license.
Our Core Principles
100% Local & Private
Your music never leaves your Mac. Zero audio files or filenames are ever uploaded to any cloud server. Perfect for unreleased studio tracks and confidential client stems.
No Subscription Traps
We reject subscription fatigue. We provide a permanent free tier (3 songs/month) and an honest, one-time payment Pro license (49 €) with lifetime updates.
DJ & Creator Centric
Features crafted specifically for music workflows: automatic Camelot harmonic keys, Top Loops without kick, and 1-click transient sampler slicing.
Juan Carlos González (@malkomich)
Founder & Lead Software Engineer — StemSplitter Studio
As a software engineer passionate about audio architecture and high-performance computing, Juan Carlos founded StemSplitter Studio on an unshakeable premise: creative software should be blazingly fast, deeply respect privacy, and be owned by the artist—never rented.