Please consult with us if the following situations may occur, "when you can hear the sound from an external air conditioning unit placed on a roof", "everyday when you are in an office room and can hear the run off sound from a nearby toilet and you cannot get your work done". At times like this, it would become a cause of structure-bone sound that is then re-emitted through the walls, therefore, a solid sound reproduction from the pulsation of equipment in a facility, not air borne sound that travel through the walls and ceilings and through the air. In this situation, first of all, you need to confirm and take measurements of the unwanted noise, in addition you should take measurements of the vibration from the floor and walls. The unwanted sound emission from the room is rated against the Japanese architecture society standard or against if you can hear or not.
The result of the measurement of the interior noise establishes the target value, and we can begin to consider a proposed measure. To create a countermeasure to unwanted noise, we need to make it difficult for vibration to travel through the building frame. That is the reason why, checking the installation method for vibration proof counter and distribute tubing. When the Sound source countermeasure seems to be difficult, so the need to examine the countermeasures for a receive point. Using our experience and know how, we will look at the entire acoustic view and then arrange a coordinate by all method operation.