Thanathai Lertpetchpun
tʰánátʰāj lɤ̂tpʰétpʰān
PhD Student in Electrical and Computer Engineering
University of Southern California
I research speech processing and machine learning, focusing on speaker & emotion recognition and anti-spoofing. I am advised by Shrikanth Narayanan.

About Me
Hi, I am Thanathai and from Thailand (you can probably guess that from my first name). I am a second year PhD Student at the University of Southern California, where I'm a member of the Signal Analysis and Interpretation Laboratory (SAIL). My research interests are in speech processing, representation learning, and fairness. Specifically, I work on speaker verification, speech emotion recognition, and voice anti-spoofing.
Before starting my PhD, I received my Bachelor's Degree in Computer Engineering from Chulalongkorn University, Thailand, where I also worked as a research assistant with Ekapol Chuangsuwanich on speaker verification and anti-spoofing. I've also had the opportunity to intern at Tencent Thailand in 2021, where I worked on news and song recommendation systems.
News
[Aug 2025] Three papers were accepted to Interspeech 2025!
[Aug 2023] One paper was accepted to Interspeech 2023!
Projects
ARTS: Anonymous Real-Time Speech
Oct 2024 - Present | USC - JHU - Meaning Company
- Developed a state-of-the-art model for emotion attribute prediction (2 Interspeech 2025 publications).
- Developing a phoneme-wise alignment for training a voice conversion model.
Speaker Recognition and Anti-spoofing System
Aug 2022 - May 2024 | Chulalongkorn University
- Proposed a new normalization layer to address mismatched emotions and languages in speaker verification (1 Interspeech 2023 publication).
- Proposed an amplification approach to amplify artifacts in spoofed utterances using speech enhancement (1 Interspeech 2025 publication).
Awards & Honors
SER Challenge
Aug 2025
Rank 1st in attribute prediction and 2nd in category prediction on the Speech Emotion Recognition in Naturalistic Conditions Challenge.
Student Grant
Aug 2023
Awarded a Student Travel Grant for Interspeech 2023.