StemSplitter Studio is a native macOS app powered by Demucs v4 that isolates vocals, drums, bass, melodies, and ambient textures directly on your Mac. No subscriptions, no cloud uploads, 100% private. Features Apple Silicon Metal acceleration, studio-grade 32-bit Float / 24-bit WAV exports, Camelot key & BPM detection, and an intelligent one-shot & loop sample extractor for music producers and DJs.