Stem splitter
Two engines, described honestly. Offline Experimental is spectral masking that runs entirely in your browser — private and instant, but it is signal processing, not AI separation, so bleed is expected. Neural runs real open-source models (UVR / Demucs) on a connected CUDA worker and is only offered once a model has passed a benchmark on that worker.
Separation engine
Stems to extract
Offline Experimental uses spectral masks, not neural source separation. Expect audible bleed — especially drums or instruments in a vocal solo — plus possible transient and phasing artifacts.
Core estimates
Experimental estimates — expect heavy bleed
These four cannot identify a specific instrument — they are band and stereo-position estimates, offered for sketching only.
Mask strength — higher isolates harder and adds more artefacts.
Drop a finished song or video
Stereo mixes separate best. MP4/MOV/WebM video works too — the audio track is extracted locally.
Offline sessions save to this device. Create a free account to sync history and unlock neural jobs.