What is it about?
Does your voice sound different when you speak another language? We explored this question by asking people to listen to Cantonese–English bilingual speakers and judge how similar their voices sounded. We found that the same person's voice sounded less similar when they switched languages. However, voices from the same person still sounded more alike than voices from different people. This suggests that although speaking another language changes how our voices sound, we can still recognise the unique qualities that make each person's voice their own.
Featured Image
Photo by Trung Thanh on Unsplash
Why is it important?
Our voices help others recognise who we are, even when we speak different languages. This study shows that although switching languages changes how a person's voice sounds, their unique vocal identity remains relatively stable. These findings help us better understand how people perceive voices across languages and may contribute to improving voice recognition technologies, particularly in multilingual settings.
Perspectives
I've always been fascinated by how our voices are such a personal part of who we are, yet can sound quite different when we speak another language. It makes me wonder what exactly makes a voice recognisable as belonging to the same person. In this study, we explored this question from a scientific perspective, looking at how people perceive bilingual speakers' voices and the acoustic characteristics that shape these perceptions. I hope our findings bring us a little closer to understanding what makes our voices uniquely ours.
Tianze Xu
University of Zurich
Read the Original
This page is a summary of: Voice Perception Across Languages: Reduced Similarity Between Speakers, Stable Identity Within Speakers, Journal of Speech Language and Hearing Research, October 2026, American Speech-Language-Hearing Association (ASHA),
DOI: 10.1044/2026_jslhr-25-01029.
You can read the full text:
Resources
Contributors
The following have contributed to this page
