Like geese or duck calls to lure juicy great tasting birds to an early demise?
Maybe you could apply for a grant to study the effect of artificial sounds on the lure of frogs to a non-native habitat. Then another study on how artificial sounds soothe permie types.
My wife discovered that a vacuum's noise could calm a cholicky baby.
Nothing? Or something? Like this tiny ad:
3 Plant Types You Need to Know: Perennial, Biennial, and Annual