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Summary:
- The optimizer in fine-tuning recipe should also be `AdamW`. See https://github.com/pytorch/audio/pull/2412
- Fix the import of `DistributedBatchSampler` in hubert dataset
- Fix `dataset_path` in fine-tuning module.

Pull Request resolved: https://github.com/pytorch/audio/pull/2588

Reviewed By: carolineechen

Differential Revision: D38243423

Pulled By: nateanl

fbshipit-source-id: badc88ce9eddfd71270201a65ae89433fae2733f

Summary:
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drop-conflicts

Reviewed By: adamjernst

Differential Revision: D37375235

fbshipit-source-id: 3d7eb39e5c0539a78d1412f37562dec90b0fc759

Summary:
The PR contains the CTC fine-tuning recipe of HuBERT Base model.
The files include:
- lightning module
- training script
- README and the result table
- evaluation scripts

Pull Request resolved: https://github.com/pytorch/audio/pull/2352

Reviewed By: hwangjeff

Differential Revision: D36915712

Pulled By: nateanl

fbshipit-source-id: 0249635ad5e81a8aa2d228c1d5fe84d78b62a15b