from datasets import load_dataset, Audio dataset = load_dataset('json', data_files="train.jsonl") print(dataset) dataset_audio = dataset.cast_column( "audio", Audio(sampling_rate=48_000, mono=True, decode=True) ) print(dataset_audio) train_set = dataset_audio['train'] train_set.to_parquet("train.parquet") print(train_set[1])