Download Stemdeck
StemDeck performs six-track source separation on a local machine. The program accepts common audio and video files or a YouTube link, then isolates vocals, drums, bass, guitar, piano, and other elements into separate lanes. Each lane has its own fader, mute, and solo controls. Users can zoom the waveform, set loop points, and export either individual stems or a mixed file. Processing happens without network transfers after the initial download.
The software package runs on Windows, Linux, and macOS without installation. It detects NVIDIA CUDA, Apple MPS, or CPU automatically. A built-in analysis function reports tempo, key, scale confidence, integrated loudness, and peak level. The library organizes imported songs into folders with search and trash controls. Jobs can be cancelled at any point, and the program cleans up partial files before returning to a ready state.
This release fixes a Windows portable startup failure where the backend health check timed out after 90 seconds. The shell now uses a token-based identity check that works through the Python launcher process. Linux and macOS builds were unaffected. The update is available as a full download or through the in-app updater for existing installations.
Use Cases for Stemdeck
| Separate audio into six stems using Demucs | Import tracks from YouTube or local files |
| Edit waveforms with zoom and loop region | Extract only chosen stems for playback or export |
| Hear original backing track as A/B reference | Export selected stems into one mix file |
| Adjust per-stem volume, mute, or solo | Monitor real-time RMS levels with peak hold |
| Detect BPM, key, and integrated LUFS | Cancel separation or export jobs mid-pipeline |
| Organize tracks with folders and search | Run portable builds without installer |
| Automatically use CUDA, MPS, or CPU | Snap chip selection to single stem quickly |
| Keep mixer state synchronized across panels | See current playback position across stem lanes |
| Remove partial files after job cancellation | Drag and drop songs into library folders |
| Update in place for existing installations | Handle MP3, WAV, FLAC, OGG, MP4, M4A |
What’s new in Stemdeck
- StemDeck now has a built-in self-explanation feature — a fresh Guide button turns the studio into an interactive manual, the Trash is more …
- All four fixes in this version came from @wastedbits, described thoroughly — thank you.
- Guide: a new button appears in the left rail under Trash — click it and every element it can describe briefly lights up so you know where t…