Very interesting. Someone needs to make an App for that
Wonder if recording some thumping sounds on a phone and hanging a waterproof bluetooth speaker over the side would work??
Been there done that couple years ago. Got an 80 bucks waterproof bluetooth. Spent time pounding and recorded several low keys on the piano keyboard. Clipped out several high bass rock songs. Went to play on the deep water in January. Looped the music on my phone. Speaker in water. Speaker in boat.
Results...the dam fish scattered away from me instead of grouping.
Or maybe you can buy a thousand dollar 1000watt sub and play and let's us know
Or just get the Bobo's lol