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We measure and evaluate the indoor quietness in buildings.
We measure the road noise that penetrates from outside, as well as the noise generated during the operation of elevators and mechanical parking systems indoors, and evaluate the indoor quietness based on the analysis results (such as NC curves).
We will measure and evaluate how loud the standard floor impact is heard in the room below.
Using lightweight and heavyweight impact sound sources (tapping machine and banging machine), the floor being measured is excited to generate impact sound, and the lightweight equivalent sound pressure level and heavyweight maximum sound pressure level are measured directly below. The floor impact sound level is then determined. From these results, the L value is calculated and evaluated.
