MUSICAL SOUND DEVICE, AND METHOD OF PRODUCING AND PROCESSING MUSICAL SOUND DEVICE

摘要

PROBLEM TO BE SOLVED: To prevent vibration/sound from a vibrator which is attached on a position where the direction of the regular grain of a soundboard is equal in angle from an line-symmetrical axis line of the sound board and a periphery of the soundboard and the direction of each sound rib is equal in angle from the axis line and the periphery of the soundboard from being biased along the regular grain of the soundboard or one part of the sound rib.;SOLUTION: An electromagnetic drive unit 31 is attached on a position near a periphery of a soundboard 8 almost on a line-symmetrical axis line E of the soundboard 8. A direction P of a regular grain of the soundboard 8 is almost equal in angle from the axis line E and a direction AB of a periphery of the soundboard 8. A direction S of each sound rib 9 is also almost equal in angle from the axis line E and the direction AB of the periphery of the soundboard 8. According to the equiangular positions, vibration/sound from the electromagnetic drive unit 31 is not biased along the regular grain of the soundboard 8 or one part of the sound ribs 9 and the vibration/sound of the soundboard 8 can be transmitted equally to the whole soundboard 8 without being biased in one part of the soundboard, so that deterioration/distortion of musical sound from the soundboard 8 can be prevented.;COPYRIGHT: (C)2009,JPO&INPIT