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1 .This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?
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2 .What makes someone sound sexy?
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3 .(sound)
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4 .To get a scientific viewpoint, researchers gauged volunteers' responses to different voices.
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5 .The conclusion: voices considered attractive send messages about body size.
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6 .The work is in the journal PLoS ONE.
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7 .In the animal kingdom, sound indicates size and intentions.
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8 .For example, a rough and low-frequency call suggests the vocalizer is large and aggressive,
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9 .while a clearer, higher frequency signals a small, non-threatening animal.
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10 .In the study, researchers adjusted a variety of voices to correspond with different body sizes.
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11 .To do so, they synthesized completely artificial voices, and recorded sentences before varying the pitches and resonance.
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12 .When volunteers listened to the sound samples, men preferred higher-pitched female voices like this one
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13 .(voice clip),
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14 .which suggest a smaller body size.
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15 .Low-frequency male voices that signaled a large body size (voice clip), were attractive to females.
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16 .Interestingly, breathiness made both male and female voices more desirable.
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17 .It certainly explains the enduring popularity of
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18 .(audio of Marilyn Monroe singing to JFK).
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19 .Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.
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