Patent ID: 6466752
Filing Date: 2002-10-15
Classification: G03G

Abstract:
A method of improving the quality of sounds produced from a device provided with a mechanical drive mechanism and the like,wherein, by using either one of or both of units for suppressing noise of a noise source produced in said device and of its transmission path, a discomfort index S of a sound obtained by inputting a value of loudness and a value of sharpness of psychological sound parameters obtained from a sound at a position apart by 1 meter from the exterior of said device into the following equation (a): S=0.01024269Ã—(loudness value)2+0.30996744Ã—(sharpness value)âˆ’2.1386517â€ƒâ€ƒ(a) â€ƒwill satisfy the following condition (b): S0.3555.â€ƒâ€ƒ(b)