Acoustic sensors are devices that detect sound waves and convert them into electrical signals. They are commonly used in various applications, such as monitoring environmental noise, detecting machinery sounds, and even in medical diagnostics to capture ultrasound waves. These sensors can be sensitive to different frequencies, allowing them to pick up a wide range of sounds. These sensors work by using microphones or piezoelectric materials that respond to vibrations in the air. The captured sound data can then be analyzed for various purposes, including speech recognition, wildlife monitoring, and security systems. Their versatility makes them valuable tools in both industrial and consumer settings.