Ultrasonic synthesizer having ultrasonic sound generator and ultrasonic detector for converting ultrasonic sound to electrical signal

摘要

The sound synthesizer has an ultrasonic sound detector (2) converting the ultrasonic sound to an electrical signal, together with a processing unit (3) and output loudspeaker (4). Sounds are created by an ultrasonic generator (1) and transmitted to the ultrasonic detector as ultrasonic signals.