What is a smart hydrophone?

A hydrophone is simply a microphone that is designed to work underwater. A smart hydrophone also has many of the capabilities of a recording studio built into it. It can digitize the sound, calculate the energy at each frequency, send the data out via the Internet and even send alerts if it detects a specific event such as a whale call. This new technology makes listening to the ocean easier than ever before, scientifically accurate, and it all comes in a package smaller than a water bottle.

Why do we want to listen to the ocean?

Sound is the most effective energy for making observations in the ocean. That is why navies and ocean surveyors rely so heavily on sonar....