['libri_light', 'common_voice', 'switchboard', 'fisher']
['pytorch', 'wav2vec2', 'pretraining', 'en', 'dataset:libri_light', 'dataset:common_voice', 'dataset:switchboard', 'dataset:fisher', 'arxiv:2104.01027', 'transformers', 'speech', 'license:apache-2.0', 'has_space']