transformers

1a81d774 - Add dithering to the `Speech2TextFeatureExtractor` API. (#34638)

Add dithering to the `Speech2TextFeatureExtractor` API. (#34638) * Add dithering to the `Speech2TextFeatureExtractor` API. - in kaldi : https://github.com/kaldi-asr/kaldi/blob/4a8b7f673275597fef8a15b160124bd0985b59bd/src/feat/feature-window.cc#L145 - with dithering without a seed, the features become non-deterministic due to small Gaussian noise added to the audio (i.e. 2 runs lead to little different outputs) * update the PR - add dithering also for WhisperFeatureExtractor - not adding to Wav2Vec2FeatureExtractor (no FBANK computation) * add unit-tests for dithering, fix docstrings * ruff * utils/check_copies.py --fix_and_overwrite * update code, add seed to unit-test * adding explanation of dithering