The First DIHARD Speech Diarization Challenge

DIHARD is a new annual challenge focusing on “hard” diarization; that is, speech diarization for challenging corpora where there is an expectation that the current state-of-the-art will fare poorly, including, but not limited to:

Because the performance of a diarization system is highly dependent on the quality of the speech activity detection (SAD) system used, the challenge will have two tracks:

The results of this initial challenge will be presented at a special session at Interspeech 2018 in Hyderabad.

For questions not answered in this document or to join the DIHARD mailing list, please contact

Important dates

  • Registration period – January 30 through February 23, 2018
  • Dev set release – February 1, 2018
  • Eval set release – February 26, 2018
  • Interspeech abstract submission – March 16, 2018
  • Interspeech paper submission/final system outputs – March 23, 2018
  • Final system descriptions – March 31, 2018
  • Interspeech 2018 special session – September, 2018
  • The deadline for submission of final system outputs corresponds to the Interspeech deadline (March 23, 2018 midnight GMT).


    Kenneth Church

    Christopher Cieri
    (Linguistic Data Consortium)

    Alejandrina Cristia
    (Laboratoire de Sciences Cognitives et Psycholinguistique)

    Jun Du
    (University of Science and Technology of China)

    Sriram Ganapathy
    (Indian Institute of Science)

    Mark Liberman
    (Linguistic Data Consortium)

    Neville Ryant
    (Linguistic Data Consortium)

    If you are interested in participating or just want to learn more,
    then please email with the subject DIHARD
    you will be added to the email list for updates.