Blizzard Challenge 2023

From SynSIG

Read these first

The organising committee this year is led by Olivier Perrotin from GIPSA-lab at University Grenoble Alpes, with assistance from Gérard Bailly at GIPSA-lab and Simon King from The University of Edinburgh.


Register by emailing (note: this is a new address and differs from previous years). We need to know your:

  • preferred team name - the organisers may adjust this so that all teams have meaningful, unique names
  • affiliation - the name of your University and lab, or your Company
  • the name of the main contact person - this must be exactly one person who is responsible for all communication with the organiser
  • contact details:
    • main contact person's email address - should be an institutional email address
    • backup email address(es)
    • postal address
    • phone number

Data download


Training data with its full description is available here:

Last update: 23/01/2023
Version v2: addition of EC_LFDP_NEB_02_0025 and EC_LFDP_NEB_06_0002 entries in NEB_train.csv)

For a one-shot download, you can do in a terminal:

 pip3 install zenodo_get
 zenodo_get 10.5281/zenodo.7560290 -o ~/mylocalrepository -e
The -e option prevents the download to stop if there is an error in one file. If this happens, re-launch the command (only the not downloaded files will be downloaded). Full doc here.

Test data will be released on March 27th to registered participants.

Development tools


  • A questionnaire is included with the test materials. Please complete and include it within your submission.

Test set

Hub task 2023-FH1:

Spoke task 2023-FS1:

Mailing list

There is a Google Group for discussion and announcements for the challenge:

Participants must join this group in order to receive information about the Challenge. You need to log in to a Google account, then request to join. If you do not have a Google account, you will need to create one.


  Jan 13    2023 - challenge announcement and registration open
  Jan 13    2023 - database released
  Mar 05    2023 - team registration closes
  Mar 27    2023 - test sentences released to participants
  Apr 03    2023 - deadline for participants to submit synthetic speech (23:59 AoE)
  Apr 07    2023 - last date for payment of the entry fee
  Apr 17    2023 - evaluation systems go live
  Jun 12    2023 Jun 04    2023 - end of the evaluation period
  Jun 22    2023 Jun 16    2023 - release of results
  Jul 10    2023 Jul 03    2023 - deadline to submit workshop papers (23:59 AoE)
  Jul 28    2023 - notification of acceptance
  Aug 20-24 2023 - INTERSPEECH 2023, Dublin, Ireland
  Aug 26-28 2023 - SSW12, Grenoble, France 
  Aug 29    2023 - Blizzard Challenge 2023 Workshop, same location as SSW


Information on the workshop can be found here: Blizzard Challenge 2023 Workshop

Any questions?

Please contact if you have any questions.

Previous challenges

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