If you don't have much experience with python or the shell, here are more detailed instructions. Note that Demucs is not supported on 32bits systems (as Pytorch is not available there).
- First install uv, e.g.
with
winget install --id=astral-sh.uv -efrom a terminal (pressWin + R, typecmdand press enter to open one). uv takes care of installing Python for you, there is nothing else to install. - Optionally, install ffmpeg (
winget install ffmpeg): it is required for flac output and for reading the more exotic audio formats.
I have no coding experience and these are too difficult for me
Then a GUI is suitable for you. See Demucs GUI
To use Demucs, just run from a terminal:
uvx demucs "PATH_TO_AUDIO_FILE_1" ["PATH_TO_AUDIO_FILE_2" ...]The " around the filename are required if the path contains spaces. A simple way to
input these paths is draging a file from a folder into the terminal.
To find out the separated files, you can run this command and open the folders:
explorer separatedIf you have a graphic card produced by NVIDIA with more than 2GiB of memory, you can separate tracks with GPU acceleration. On Windows, the default PyTorch package is CPU only, so you must instruct uv to fetch it from the PyTorch CUDA index instead:
uv tool install demucs --index https://download.pytorch.org/whl/cu126
demucs "PATH_TO_AUDIO_FILE_1"(see the PyTorch home page for the index url matching your CUDA version).
You can use the following command to separate an entire folder of mp3s for instance
(replace the extension .mp3 if needs be for other file types)
cd FOLDER
for %i in (*.mp3) do (uvx demucs "%i")