---
license: mit
tags:
  - audio
  - source-separation
  - drumsep
  - onnx
  - onnxruntime
library_name: onnx
---

# DrumSep (ONNX) — Gridshift mirror

Drum-element separation model (kick / snare / cymbals / toms) in ONNX format,
moved from `philippherzig/drumsep-onnx` to
[Gridshift Studio](https://huggingface.co/gridshiftstudio) org for
release-pipeline consistency.

Weights and format are unchanged from the previous repository. The original
upstream is [inagoy/drumsep](https://github.com/inagoy/drumsep),
a DemucsHT fine-tune on drum stems.

## Usage

Consumed by [Gridshift](https://gridshift.studio)'s drum-element separation
feature via the Rust stem-splitter crate. The `drumsep_manifest.json` in this
repo lists the ONNX model file with SHA-256 for integrity verification.

- **Audio format:** 44.1 kHz stereo, 1 764 000 samples per inference window
- **Stems:** kick, snare, cymbals, toms
- **Format:** ONNX (opset 14)
- **File size:** ~335 MB

## License and attribution

Inherited MIT license from the upstream `inagoy/drumsep` project. The ONNX
conversion was done from the original HDemucs checkpoint using
`torch.onnx.export` (see `app/rust/drum-separation/convert_drumsep_to_onnx.py`
in the Gridshift source tree).