Granary is a large-scale multilingual speech dataset released by NVIDIA's multi-site research team in 2025. The related paper results are "Granary: Speech Recognition and Translation Dataset in 25 European Languages", which aims to provide high-quality training and evaluation materials for multilingual ASR/AST models. This dataset contains approximately 1 million hours of high-quality pseudo-labeled ASR speech data, covering 25 European languages (including 23 EU languages, as well as Ukrainian and Russian). The data is sourced from publicly available speech corpora and processed through a unified pseudo-labeling and quality filtering process.

Languages include:

Bulgarian, Czech, Danish, German, Greek, English, Spanish, Estonian, Finnish, French, Croatian, Hungarian, Italian, Lithuanian, Latvian, Maltese, Dutch, Polish, Portuguese, Romanian, Slovak, Slovenian, Swedish, Ukrainian and Russian.

Citation

@misc{koluguri2025granaryspeechrecognitiontranslation, title={Granary: Speech Recognition and Translation Dataset in 25 European Languages}, author={Nithin Rao Koluguri and Monica Sekoyan and George Zelenfroynd and Sasha Meister and Shuoyang Ding and Sofia Kostandian and He Huang and Nikolay Karpov and Jagadeesh Balam and Vitaly Lavrukhin and Yifan Peng and Sara Papi and Marco Gaido and Alessio Brutti and Boris Ginsburg}, year={2025}, eprint={2505.13404}, archivePrefix={arXiv}, primaryClass={cs.CL}, url={https://arxiv.org/abs/2505.13404}, }