REDUCTION OF TRANSMITTED FLOOR IMPACT SOUND OF ANTI‐VIBRATION TATAMI ON FLOATING FLOOR SYSTEM

In this report, an experimental study was conducted on floor impact sound insulation performance when tatami with anti-vibration proposed in the previous reports was constructed on floating floor system. As a result, from the results of the car-tire source, when tatami mats with anti-vibration are installed, reduction of transmitted impact sound is 2 to 4 dB for the 63 Hz band in some specifications, and floor impact sound insulation performance using the car-tire source is better than that of the bare surface.