 Exciter (audio transducer)

An exciter, in the context of audio transducers, is a device that converts electrical signals into mechanical vibrations, which can then be used to create sound. Unlike traditional speakers that produce sound by moving a diaphragm within a defined enclosure, exciters typically operate by vibrating a surface directly. They are often attached to various materials, such as walls, furniture, or other objects, allowing those surfaces to resonate and produce sound.