Passive acoustics

Passive acoustics is a technique used to listen to and analyze sounds in the environment without emitting any sound of your own. It involves using sensitive underwater or surface microphones (hydrophones or microphones) to detect noises made by animals, ships, or natural processes. This method helps researchers study marine life, monitor traffic, or detect underwater activity silently, providing valuable information without disturbing the environment or alerting the source of the sound. Essentially, it’s like eavesdropping with specialized equipment to understand what’s happening nearby by just listening.