There are products in this space, eg https://www.crysound.com/ https://www.crysound.com/ Very cool stuff, can be used for drone detection at up to 200m. Accura

There are products in this space, eg https://www.crysound.com/ https://www.crysound.com/ Very cool stuff, can be used for drone detection at up to 200m. Accuracy is not super good, unless you make mic spacing a bit large.