UWB-NTIS Speaker Diarization System for the DIHARD II 2019 Challenge

Zbyněk Zajíc, Marie Kunešová, Marek Hrúz, Jan Vaněk


In this paper, we present our system developed by the team from the New Technologies for the Information Society (NTIS) research center of the University of West Bohemia in Pilsen, for the Second DIHARD Speech Diarization Challenge. The base of our system follows the currently-standard approach of segmentation, i/x-vector extraction, clustering, and resegmentation. The hyperparameters for each of the subsystems were selected according to the domain classifier trained on the development set of DIHARD II. We compared our system with results from the Kaldi diarization (with i/x-vectors) and combined these systems. At the time of writing of this abstract, our best submission achieved a DER of 23.47% and a JER of 48.99% on the evaluation set (in Track 1 using reference SAD).


 DOI: 10.21437/Interspeech.2019-1385

Cite as: Zajíc, Z., Kunešová, M., Hrúz, M., Vaněk, J. (2019) UWB-NTIS Speaker Diarization System for the DIHARD II 2019 Challenge. Proc. Interspeech 2019, 993-997, DOI: 10.21437/Interspeech.2019-1385.


@inproceedings{Zajíc2019,
  author={Zbyněk Zajíc and Marie Kunešová and Marek Hrúz and Jan Vaněk},
  title={{UWB-NTIS Speaker Diarization System for the DIHARD II 2019 Challenge}},
  year=2019,
  booktitle={Proc. Interspeech 2019},
  pages={993--997},
  doi={10.21437/Interspeech.2019-1385},
  url={http://dx.doi.org/10.21437/Interspeech.2019-1385}
}