DEVELOPMENT OF SIMPLY MEASURING SYSTEM OF AIRBORNE AND IMPACT SOUND INSULATION

Abstract

To measure the airborne and impact sound insulation is inefficient, laborious, tendious and expensive. To solve these problem, three types of simply measuring systems of airborne and impact sound insulation was developed. The system I and III are fixed microphone method. The system II is a moving microphone method with hand. The algorithm is different from system I and III. With 3 systems, airborne and impact sound insulation were measured at field. The result of three types of systems were agreed. And measurement time was shorter than before.