ULTRASONIC HEARING AID

摘要

An external sound sensing device for sensing an external sound by ultrasonic vibration, comprising a means (10) for generating sound signal based on an input external sound, a means (20) for generating a vibration signal by modulating a carrier signal based on a sound signal, and a vibration transmitting means (30) for transmitting a ultrasonic vibration to a living body based on a vibration signal, wherein the vibration transmitting means (30) is provided with a plurality of vibrators (31) capable of being fixed while being kept in contact with the specified position of a living body, and the vibration signal generating means (20) is so constructed as to be able to generate different vibration signals for different vibrators (31). This external sound sensing device can easily and quickly optimize a sound sensing condition.