When a woman tries to talk a friend through something upsetting, how high her voice sits may matter as much as what she says. Across three studies, friends whose supporters spoke at a higher pitch felt less bad, and they also reported more satisfying friendships with those supporters.
The research was led by Razia S. Sahi of Princeton University and the University of California, Los Angeles, with Siyan G. Nussbaum, João F. Guassi Moreira, Elizabeth M. Gaines, Emilia Ninova, Daniel Lee, Naomi I. Eisenberger and Jennifer A. Silvers of UCLA. It was published in the Journal of Experimental Psychology: General on October 9, 2025.
Same words, different voices
The team reanalysed audio from three earlier experiments with 137 pairs of close, same-gender friends aged 18 to 39. Two samples were women only; the third included women and men.
One friend, the listener, looked at negative images while hearing the other friend, in a separate room, offer a reassuring reinterpretation over headphones, such as “He is resting and will recover.” After each image the listener rated how bad they felt on a four-point scale.
The key design choice: every supporter read the same scripted sentences. Only their delivery differed. The researchers measured each recording’s average pitch in semitones with the speech analysis software Praat, and used Bayesian models, with the first study treated as exploratory and hypotheses for the second and third preregistered.
Higher pitch, less distress and closer ties
In all three studies, higher pitch went with less negative feeling in women listeners. For every one-semitone rise in the supporter’s pitch, the odds of the listener reporting stronger negative feelings dropped by 8 to 13%, depending on the study.
Pitch also tracked the friendship itself. Listeners whose friends spoke at a higher average pitch during the task reported more satisfaction with that friendship on a standard scale covering trust, communication and feelings of alienation, by 0.75 to 1.52 points per semitone.
The authors offer several possible reasons. Higher pitch is associated with warmth, sincerity and positive arousal, and it may make a reassuring reinterpretation sound more believable. They also point to the higher-pitched speech parents use with babies, which helps with bonding.
Not the same for men
In the mixed sample, the pattern did not hold among men. Higher supporter pitch was linked to no change or even higher odds of feeling bad in male listeners, depending on the statistical assumptions. The authors call this preliminary.
They are open about other limits. Effects shrank from the first study to the third and became sensitive to the choice of prior, so larger datasets are needed to pin down their size. The scripted sentences lowered realism, and the data cannot say whether some people simply have naturally helpful voices or whether supporters raised their pitch for the task.
There is likely a ceiling too: the authors note that a voice pushed too high can start to sound shrill. And in other kinds of support, such as validating someone’s sadness, a lower voice may serve better.
Study Details:
- Title: Vocal pitch as an acoustic marker of social support efficacy in women friendships
- Authors: Razia S. Sahi, Siyan G. Nussbaum, João F. Guassi Moreira, Elizabeth M. Gaines, Emilia Ninova, Daniel Lee, Naomi I. Eisenberger, Jennifer A. Silvers
- Journal: Journal of Experimental Psychology: General
- Publication Date: October 9, 2025
- DOI: 10.1037/xge0001841