Recently, complaints about low frequency noise are increasing in Japan. In Inter-Noise ′99, Ochiai has reported the following three kinds of evaluation methods for effects caused by infra and low frequency noise.
An evaluation for rattling of doors or windows.
An evaluation for psychological and sleep effects
An evaluation for oppressive or vibratory sensation.
We have developed a measuring instrument corresponding to the above evaluation methods. In this report, an outline of the instrument and examples of infra and low frequency noise data are introduced.
References
1.
Ochiai, “Study on evaluation method of infra and low frequency noise”, Proceedings of Inter-Noise 99.
2.
Nakamura, “Frequency characteristics of subjective response to low frequency sound”, Proceedings of Inter-Noise 81.
3.
Tokita, “Proposal on the low frequency noise meter”, in Proceedings of the Conference on low frequency noise and hearing, Eds. MollerH. & RubokP., Aalborg1980, pp 227–234.
4.
Ochiai, “The present status of complaints for low frequency noise”. INCE-J Technical Report, 1998–3 (in Japanese).
