task_categories:automatic-speech-recognition language:bm license:cc-by-4.0 size_categories:100K<n<1M format:parquet format:optimized-parquet modality:audio modality:text library:datasets library:dask library:polars library:mlcroissant arxiv:2511.18557 region:us bambara African-Next-Voices ANV RobotsMali afvoices asr