Spring peepers are very loud. I have heard them calling in empty fields with no water.
Thus I imagine pinpointing them by sound would be both pretty painful, and pretty difficult.
You find them everywhere. Sadly where I used to work at, it had a huggggge pond that is not on their property and at night all sorts of frogs and toads sing there. Sad part is I cant go there on account id look like an idiot if caught. :P And n o car. XDDD