When Voices Defy Labels: The Hidden Challenge of Gender-Ambiguous Speech

In recent years, digital voice assistants have begun to diversify. In a bid to break from gender stereotypes, Apple introduced a new Siri voice in 2022 that didn’t sound clearly male or female. This move was praised for promoting inclusivity and challenging the norm of female-voiced, subservient AI. But it also raised an important question: how do people react when they hear a voice they can’t easily categorize by gender?

A new study by Shahryar Mohsenin and Kurt P. Munz, published in Psychological Science, reveals that people may react negatively to gender-ambiguous voices—not because of prejudice, but due to a phenomenon the authors call “social disfluency.” Drawing on a series of five preregistered experiments involving over 3,600 participants, the researchers explored how unfamiliar or hard-to-categorize voices influence how we judge the content those voices convey.

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