ON-TRAC’ systems for the IWSLT 2021 low-resource speech translation and multilingual speech translation shared tasks Hang Le author Florentin Barbier author Ha Nguyen author Natalia Tomashenko author Salima Mdhaffar author Souhir Gabiche Gahbiche author Benjamin Lecouteux author Didier Schwab author Yannick Estève author 2021-08 text Proceedings of the 18th International Conference on Spoken Language Translation (IWSLT 2021) Marcello Federico editor Alex Waibel editor Marta R Costa-jussà editor Jan Niehues editor Sebastian Stuker editor Elizabeth Salesky editor Association for Computational Linguistics Bangkok, Thailand (online) conference publication le-etal-2021-trac 10.18653/v1/2021.iwslt-1.20 https://aclanthology.org/2021.iwslt-1.20/ 2021-08 169 174