Blizzard Challenge 2018

From SynSIG

This Blizzard Challenge has finished

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Register by emailing We need to know your team name, the name of the main contact person, your affiliation, and contact details including email address, postal address and phone number.

Data download

The speech + text data comes from professional audiobooks produced by Usborne Publishing.

  • about 6.5 hours of British English speech data in from a single female talker
  • to encourage wider participation in the challenge, we will provide participating teams with the following items, for optional use:
    • cleaned-up text
    • a sentence-level alignment between text and speech
    • segmented waveforms, extracted linguistic and acoustic features, and a complete benchmark DNN-based system built from them
  • download links, for registered participants, can be found via

Development tools


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

Mailing list

There is a mailing list for discussion and announcements for the challenge:

Participants must join the list by sending a message to with the following line in the body of the message

 subscribe blizzard-discuss

Once you are a member you will be able to mail messages to


The timeline shown on this web page is the official one and supercedes those shown in announcements - it is subject to change, but we will try to follow it as closely as possible. Note that we will not consider any requests from participants to change the synthetic speech submission date or the paper submission date!

  Feb  1    2018  -  database released
  Apr 18    2018  -  test sentences released to participants
  Apr 26    2018  -  participants submit synthetic speech and questionnaire (by midnight UTC)
  May       2018  -  evaluation systems go live
  Jun 15    2018  -  end of evaluation period
  Jul  1    2018  -  release of results 
  Jul 13    2018  -  deadline to submit workshop papers
  Jul 30    2018  -  notification of acceptance
                    [now expected by 4th August - delayed due to several late submissions]
  Sep  2-6  2018  -  Interspeech 2018, Hyderabad, India
  Sep  8    2018  -  Blizzard Challenge workshop, Microsoft India, Hyderabad


Information on the workshop can be found here: Blizzard Challenge 2018 Workshop

Any questions?

  • Please contact if you have any questions

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