Hi, welcome to my page.

I’m Zirui Li (李孜睿). I’m a PhD student from School of Electrical Engineering at Aalto University, Finland, working with Prof. Mikko Kurimo and Dr. Lauri Juvela. My research interests include Controllable Text-to-Speech and Voice Conversion (TTS & VC), Automatic Speech Recognition (ASR) on low-resource languages, and real-time conversational systems.

Before joining Aalto University, I was a Backend Software Engineer at Justeat Takeaway.com. I obtained my Master’s degree from Delft University of Technology, the Netherlands, where I worked with Prof. Odette Scharenborg on Inclusive Automatic Speech Recognition. I obtained my Bachelor’s degree from Tianjin University, China.

🔥 News

  • 2025.09:  🎉🎉 We release Nord-Parl-TTS, an open-source TTS dataset for Finnish and Swedish. You’re welcomed to check our demo page.
  • 2025.06:  🎉🎉 Our paper Pronunciation Editing for Finnish Speech using Phonetic Posteriorgrams is accepted by Speech Synthesis Workshop 2025 (SSW13).
  • 2024.10:  🎉🎉 I started as a PhD student at Speech Recognition Group at Aalto University.

📝 Publications

  • Z. Li, L. Juvela and M. Kurimo, “Pronunciation Editing for Finnish Speech using Phonetic Posteriorgrams”, in 13th Speech Synthesis Workshop (SSW13), 2025. Arxiv Code ISCA Archive

📖 Educations

  • 2024.10 - now, PhD student, Aalto University, Finnland.
  • 2021.09 - 2023.07, M.Sc in Embedded Systems, Delft University of Technology, the Netherlands.
  • 2017.09 - 2021.07, B.Eng in Internet of Things Engineering, Tianjin University, China.

💻 Internships

  • 2024.02 - 2024.06, AiSpeech - Speech Algorithm R&D Intern, Suzhou, China.
  • 2023.05 - 2024.07, Amazon Web Services - Software Development Intern, Amsterdam, the Netherlands.
  • 2021.03 - 2021.06, Cambricon Technology - Algorithm R&D Intern, Beijing, China.
  • 2020.08 - 2020.10, Bosch China - Data Science Intern, Changsha, China.