3.15 GB / 500 MB / 3.90 GB

AI-powered audio stem separation with a clean, simple interface. Trama separates audio tracks into individual stems using Meta’s Hybrid Transformer Demucs model (htdemucs_ft). Drop in a mixed track and get back isolated stems. Fully offline.

Features
4 Stems
Vocals, drums, bass, and other — select any combination. Unselected stems are automatically merged into a single “other” file.

Quality Presets
Normal (1×), High (2.5×), or Ultra (5×) — higher quality uses more separation passes for cleaner results at the cost of processing time.

Batch Processing
Queue multiple files at once. Drag & drop or use the file browser. Progress and ETA shown per file and overall.

Supported Formats
WAV, AIFF, MP3, and FLAC input. Output is always 32-bit float WAV for maximum quality.

Saves Your Settings
Stem selection, quality preset, and output folder are remembered between sessions. Click Save Settings to persist your preferences.

WAV Metadata Preservation
BWF, cue points, labels, playlists, instrument info, and ID3 tags are all copied from the input to every output stem — Reaper markers stay intact.

Usage
1. Extract the archive and launch OD Trama.exe (Windows), OD Trama.app (macOS), or ./OD Trama (Linux, after chmod +x) — no installation needed.
2. Add audio files via Open Files or drag & drop.
3. Select the stems you want (vocals, drums, bass, other).
4. Choose a quality preset — High (2.5×) is a good default.
5. Optionally set an output folder (default: trama// next to the app).
6. Click Start and wait for processing to finish.

Visit Developer Site

WIN  ( 3 GB )

MAC  ( 500 MB )

Linux ( 3 GB )