抄録
Under a contamination of background sound noises, it seems difficult especially in a working situation to evaluate various type statistics of an objective sound signal fluctuation. However, when one estimates the objective sound signal through the measurement of related vibration intensities, the fluctuation effect of background sound noises can be eliminated in principle even under permitting its strong existence. In general, the theoretical analysis on acoustic emission caused by a mechanical vibration seems very difficult in a real working situation. In this paper, the sound intensity fluctuation emitted only from an objective sound source can be effectively evaluated through its related vibration intensity measurement with help of employing a new stochastic method proposed on the basis of a generalized regression analysis between sound and vibration intensities. Finally, the effectiveness of proposed method has been experimentally applied to the noise evaluation of a jigsaw.
