We are delighted to announce the Blizzard Challenge 2025, which will focus on speech synthesis for Bildts - a regional language with Dutch and Frisian features. The Challenge will be part of the 13th ISCA Speech Synthesis Workshop (SSW13) at the University of Groningen, Faculty Campus Fryslân in Leeuwarden.

This year's challenge aligns with SSW13's theme of 'Scaling down: sustainable synthesis for language diversity' and will feature a comprehensive dataset including dictionary resources and audio recordings.

For the first time, we will integrate community evaluation, with members of the Bildts-speaking community participating in the evaluation process and the workshop, which will take place on August 27, 2025, following SSW13 (August 24-26).

More detailed information about the challenge will be available in January 2025.

Please feel free to distribute this announcement.

The Blizzard Challenge 2025 Organising team