Introduce chroma spectrogram transform

[hwangjeff]

Summary: Adds transform ChromaSpectrogram for generating chromagrams from waveforms as well as transform ChromaScale for generating chromagrams from linear-frequency spectrograms.

Differential Revision: D46547418

[pytorch-bot]

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❌ 4 New Failures

As of commit fcacb1b:

NEW FAILURES - The following jobs have failed:

• build (3.8) (gh)
• Build M1 Conda (gh)
• pytorch/audio / manywheel-py3_8-rocm5_5 (gh)
• unittests-windows-gpu / windows-job (gh)

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This pull request was exported from Phabricator. Differential Revision: D46547418

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46547418

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46547418

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46547418

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46547418

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This pull request has been merged in 7096829.

[github-actions]

Hey @None.
You merged this PR, but labels were not properly added. Please add a primary and secondary label (See https://github.com/pytorch/audio/blob/main/.github/process_commit.py).

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