A compact real-time acoustic bandwidth compression system for real-time monitoring of ultrasound

Abstract

A real-time bandwidth compression system that can convey the prominent features of ultrasound in the human hearing band of 50 Hz to 16 kHz for real-time monitoring of ultrasound was developed. An algorithm that compresses ultrasound signals into the audio band of human hearing while maintaining the overall signatures and structures of the signal, regardless of the signal type was discussed. This algorithms can be demonstrated to be optimal under the applied constraints. The system was demonstrated using high frequency acoustic signals from a bottlenose dolphin.