AI ‘speech clock’ assesses how fast you’re ageing from your voice

October 2, 2026

3 older women sitting on a bench

(Nature) – The pitch and emotional content of your speech are important predictors of accelerated ageing, researchers find.

A ‘speech clock’ developed by scientists can predict how well a person is ageing based on characteristics of their voice and how they talk. The clock draws on hundreds of vocal features, including pitch and talking speed, to estimate a person’s age.

Using the clock, the scientists calculated a ‘speech age gap’ for individuals: the difference between a person’s age as predicted by the speech clock and their chronological age. (Read More)