Stringless piano-touch electric sound producer for directly driving a sound board on the basis of key actions

摘要

A wireless piano-touch electric sound producer comprises a keyboard assoicated with key action mechanisms and hammers driven for rotation upon depressing the assoicated keys, and a board accompanied with an absorber is shared between the hammer units for scaling down of the electric sound producer, wherein a memory unit stores pieces of vibratory information for reproducing sounds from vibrations on musical wires and board members of an acoustic piano so that a driver unit produces vibrations on a sound board of the electric sound producer on the basis of one of the pieces of vibratory information selected upon detecting actions of the keys to the hammers.