Bats avoid confusion while using echolocation in large groups through the Lombard effect. Animals that vocalize will modify pitch, timing, etc. to improve signal-to-noise ratio. This phenomenon also explains how we can hear each other over the hum at a party, aka the cocktail party problem.

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Bats avoid confusion while using echolocation in large groups through the Lombard effect. Animals that vocalize will modify pitch, timing, etc. to improve signal-to-noise ratio. This phenomenon also explains how we can hear each other over the hum at a party, aka the cocktail party problem.