We try to be inconspicuous when installing our noise capturing equipment. We're frequently questioned by cops but usually they're just curious after they establ

We try to be inconspicuous when installing our noise capturing equipment. We're frequently questioned by cops but usually they're just curious after they establish we're not stealing traffic lights. One time, some bums asked us what we were doing, and after we told them we were collecting noise data, they started screaming into our noise recorders :(