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8617847 2bfe224 8617847 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 | # Model weight licensing status
**Project weight license: [Creative Commons Attribution-NonCommercial 4.0 International](licenses/CC-BY-NC-4.0.txt) (CC BY-NC 4.0).** This applies to all 29 project checkpoints identified in [manifest.json](manifest.json), only to rights the licensors are authorized to grant. Credit ACappellaSet and preserve upstream attribution; indicate modifications when sharing. It does not grant additional third-party rights or change upstream license terms. The full-remix and single-clone singer-augmentation checkpoints were trained with voice-converted singer augmentation generated using Moises; their project license does not grant additional rights controlled by service providers or other third parties.
## Upstream notices
Demucs source code uses MIT; preserve the [Meta notice](licenses/Demucs-MIT.txt).
Pretrained initialization identities and tensor correspondence are recorded in the [initialization provenance](https://github.com/pting126/ACappellaSet/blob/main/third_party/initialization.json).
Historical fixed and specialist training uses Music-Source-Separation-Training;
preserve its [MIT notice](licenses/MSS-MIT.txt).
Singer- and dual-conditioned models include fine-tuned WeSpeaker ReDimNet2
B6-LM encoder weights; preserve the upstream [Apache license](licenses/WeSpeaker-Apache-2.0.txt)
and [WeSpeaker attribution](https://huggingface.co/Wespeaker/wespeaker-voxceleb-redimnet2-B6-LM).
Project fine-tuning changes pretrained tensors. All released checkpoints are inference-only exports, retaining every separator and matching encoder tensor while omitting optimizer state, training arguments, and internal filesystem paths.
Original documentation and metadata retain their [MIT license](LICENSE); that MIT license does not apply to model weights.
Dataset audio, corpus terms, and third-party rights remain separate.
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