Explicit Tone Transcription Improves ASR Performance in Extremely Low-Resource Languages: A Case Study in Bribri Rolando Coto-Solano author 2021-06 text Proceedings of the First Workshop on Natural Language Processing for Indigenous Languages of the Americas Manuel Mager editor Arturo Oncevay editor Annette Rios editor Ivan Vladimir Meza Ruiz editor Alexis Palmer editor Graham Neubig editor Katharina Kann editor Association for Computational Linguistics Online conference publication coto-solano-2021-explicit 10.18653/v1/2021.americasnlp-1.20 https://aclanthology.org/2021.americasnlp-1.20/ 2021-06 173 184