This is fascinating....
Both men and women can accurately assess a man's upper body strength based on his voice alone, suggesting that the male voice may have evolved as an indicator of fighting ability. (hat tip to the New Scientist)
It is really interesting that it all comes back to fighting too.
Adaptations in humans for assessing physical strength from the voice
Recent research has shown that humans, like many other animals, have a specialization for assessing fighting ability from visual cues. Because it is probable that the voice contains cues of strength and formidability that are not available visually, we predicted that selection has also equipped humans with the ability to estimate physical strength from the voice. We found that subjects accurately assessed upper-body strength in voices taken from eight samples across four distinct populations and language groups: the Tsimane of Bolivia, Andean herder-horticulturalists and United States and Romanian college students. Regardless of whether raters were told to assess height, weight, strength or fighting ability, they produced similar ratings that tracked upper-body strength independent of height and weight. Male voices were more accurately assessed than female voices, which is consistent with ethnographic data showing a greater tendency among males to engage in violent aggression. Raters extracted information about strength from the voice that was not supplied from visual cues, and were accurate with both familiar and unfamiliar languages. These results provide, to our knowledge, the first direct evidence that both men and women can accurately assess men's physical strength from the voice, and suggest that estimates of strength are used to assess fighting ability.
Both men and women can accurately assess a man's upper body strength based on his voice alone, suggesting that the male voice may have evolved as an indicator of fighting ability. (hat tip to the New Scientist)
It is really interesting that it all comes back to fighting too.
Adaptations in humans for assessing physical strength from the voice
Recent research has shown that humans, like many other animals, have a specialization for assessing fighting ability from visual cues. Because it is probable that the voice contains cues of strength and formidability that are not available visually, we predicted that selection has also equipped humans with the ability to estimate physical strength from the voice. We found that subjects accurately assessed upper-body strength in voices taken from eight samples across four distinct populations and language groups: the Tsimane of Bolivia, Andean herder-horticulturalists and United States and Romanian college students. Regardless of whether raters were told to assess height, weight, strength or fighting ability, they produced similar ratings that tracked upper-body strength independent of height and weight. Male voices were more accurately assessed than female voices, which is consistent with ethnographic data showing a greater tendency among males to engage in violent aggression. Raters extracted information about strength from the voice that was not supplied from visual cues, and were accurate with both familiar and unfamiliar languages. These results provide, to our knowledge, the first direct evidence that both men and women can accurately assess men's physical strength from the voice, and suggest that estimates of strength are used to assess fighting ability.
Comments
Mike Tyson
Walter Payton
Aaron Neville
I wonder if it is about more than a deep voice though? Maybe the patterns of speech or rhythms or something?
What aspects of voice we link with strength remain unknown, since there was no correlation between a man's strength and the pitch or timbre of his voice. That's surprising, says David Puts at Pennsylvania State University in University Park, since previous research showed deeper voices were rated as coming from stronger men.
So it is not about how deep your voice is.
Voice pitch predicts reproductive success in male hunter-gatherers
I am sure there is a correlation with testosterone.
The interesting thing - as I commented above - is that in this case, judging strength and fighting ability, there is no correlation with voice pitch. Hence Ronnie Coleman or Mike Tyson
"We recorded 26 men enunciating five vowels. Voices were played to 102 female judges who were asked to assess vocal attractiveness and speakers' age, height and weight... We found that men with low-frequency formants and small formant dispersion tended to be older, taller and tended to have a high level of testosterone. Female listeners were consistent in their pleasantness judgment and in their height, weight and age estimates. Pleasantness judgments were based mainly on intonation. Female listeners were able to correctly estimate age by using formant components. They were able to estimate weight but we could not explain which acoustic parameters they used. However, female listeners were not able to estimate height..."