Just as we expected, two or more synthesized fish hums played together produce the rhythmic, acoustic beats. And sure enough, the females were able to directly localize one of the humming speakers. Their midbrain neurons form a code of the beats that helps in their calculations to locate the hum of interest from all the rest.
Andrew H. Bass
Neuroscientists call this auditory scene analysis. It's really very similar to the cocktail party effect.
analysis party call effect
rest speakers fish interest code form females
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