Executes a given command array using Node.js child_process.spawn,
streaming output if silent is false.
This is abstracted for easier testing.
Runs Demucs with the current configuration.
This method builds the CLI arguments based on the configuration, calls the abstracted executor and returns the output.
For Docker mode, it converts the input file path to an absolute path, mounts the file directory, and rewrites the input argument accordingly.
When silent is false, stdout and stderr are streamed in real time.
A promise that resolves with the combined stdout and stderr output.
Staticinit
The Demucs class allows you to run Demucs via child_process.spawn with a chainable API.
Usage examples:
// Using static init with overrides (input file, out folder, and optional docker image must be provided) const results = await Demucs.init({ input: "path/to/file.mp3", out: "output-folder", device: "cpu", demucsEngine: "docker", // or "local" dockerImage: "voxextractlabs/vox-demucs:1.0.0" // optional }).run();
// Or, using the constructor directly: const demucs = new Demucs({ input: "path/to/file.mp3", out: "output-folder", device: "cpu", demucsEngine: "local" // or "docker" }); const results = await demucs.run();