The $10,000 Dog Translator
For those secrit dog missions:
Worn on a collar or mounted on a wall, the Dog Bio Security System translates barking into alarms for police or military. Bio-Sense Technologies spent two years capturing the sound waves of woofs and arfs, encoding them to be read by a digital signal processor. All dogs emit the same type of bark when they sense trouble. The device can distinguish this bark from a dog's "Hello." A consumer version costs $100. A high-end version costs tens of thousands of dollars but is still 25% the cost of video surveillance.
You know, among the problems I see with this is that all dogs may 'emit the same type of bark when they sense trouble.' But not all dogs consider the same things trouble. Some dogs consider everything trouble.
...via DefenseTech