Blizzard Challenge 2013

From SynSIG
English data for the Blizzard Challenge 2013 were generously provided by The Voice Factory with the assistance of Lessac Technologies


This Blizzard Challenge has finished

Read these first

Registration and license agreement

  1. 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. Please state which datasets you want to download and which tasks you are planning to submit entries to (this is non-binding, but is helpful for our planning).
  2. Complete the license for English data, which can be accessed via

Data download

  • For English, you will be sent a username and password to download the data. Download links can be found via
  • For Indian data please use the following four corpora from the IIIT-H INDIC corpus. Note that the official release for this challenge is only the speech data (wav/ directory) and the corresponding text in UTF-8 format (etc/ Any other information that may be included in the distributions, such as segment labels, phone set and Roman transliteration available from the sample Festvox voice builds is not officially provided or endorsed as a part of this challenge, although may be used by participants if they wish.
  • Development tools, available via :, include:
    • Submitted synthetic speech and listener scores for some previous Blizzard Challenges, which may be helpful during development

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 offical 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!

  Jan 15 2013 - databases released
  Mar 25 2013 - IH test sentences released to participants
  Mar 31 2013 - participants submit synthetic speech for IH tasks
  Apr  1 2013 - EH test sentences released to participants
  Apr 10 2013 - participants submit synthetic speech for EH tasks
  Apr    2013 - evaluation systems go live
  Jun 30 2013 - end of evaluation period
  Aug  9 2013 - deadline to submit workshop papers
  Aug 15 2013 - notification of acceptance
  Aug 25-29 2013 Interspeech 2013, Lyon, France
  Aug 31 - Sep 2 2013 SSW8, Barcelona, Spain
  Sep  3 2013 Blizzard Challenge 2013 Workshop, Barcelona, Spain


Information on the workshop can be found here: Blizzard Challenge 2013 Workshop

Any questions?

  • Please contact if you have any questions

Previous challenges

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