2013 Fiscal Year Final Research Report

Study on the method of assessing tonal components in environmental noise

Research Project

Project/Area Number	23760544
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Architectural environment/equipment
Research Institution	The University of Tokyo
Principal Investigator	YOKOYAMA Sakae 東京大学, 生産技術研究所, 助教 (80512011)
Project Period (FY)	2011 – 2012
Keywords	建築環境・設備 / 解析・評価 / 心理評価 / 実験室実験 / 環境政策
Research Abstract	In Japan, the environmental noise problem, that is one of the familiar sensory pollutions, is still serious. In order to improve the problem, it is important that the method of assessing intermittent noise, impulsive noise and tonal components in environmental noise is established. Further, a measure and a prediction of the noise are also needed as well as the assessment. The some investigation for the impulsive noise has been started in our laboratory. In this study, field measurement of tonal component in environmental noise and subjective experiment using simulated sound field in acoustic laboratory were performed. From the results, the applicability of the evaluation values based on energy used the world over was investigated.