Every now & again we get a question about how to find the source of a chirping noise. Mechanic’s stethoscopes are great, and we all know about accelerometers (piezoelectric sensors that can send a signal to a scope) but I go to wondering something. Has anyone here ever tried a unidirectional microphone to find the source of a chirp or squeak? It seems such a simple idea, but I’ve never heard of it used.
Thoughts? Inputs? Comments? Criticisms? Experiences?