GitLab

* Add initial implementation of `spectrogram_batch`

* Format the initial implementation

* Add test suite for the `spectrogram_batch`

* Update `spectrogram_batch` to ensure compatibility with test suite

* Update `spectrogram_batch` to include pre and post-processing

* Add `amplitude_to_db_batch` function and associated tests

* Add `power_to_db_batch` function and associated tests

* Reimplement the test suite for `spectrogram_batch`

* Fix errors in `spectrogram_batch`

* Add the function annotation for `spectrogram_batch`

* Address code quality

* Re-add `test_chroma_equivalence` function

* Update src/transformers/audio_utils.py
Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>

* Update src/transformers/audio_utils.py
Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>

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Co-authored-by: amyeroberts <22614925+amyeroberts@users.noreply.github.com>