The Seasonal Variation and Place Peculiarity of the Sound Environment in the TAMAGAWA River

Abstract

The purpose of this study is to find the characteristics of the sound environment in Tamagawa river. The soundscape survey was carried out through all seasons at the four places that are Taba: the upper reaches, Hamurazeki: the middle reaches, Futakotamagawa: the lower reaches and Haneda: the mouth of a river. The soundscape survey method was to record existing sounds continuously for twenty-four hours with the integrating sound-level meter, and record sounds and views intermittently with the Digital Audio Tape recorder and the Video tape recorders. The Loudness level of sound environment in 24 hours was condensed in editing with circlar graph. The seasonal variation and place peculiarity of the sound Environment were analyzed. The proper sounds are observed in each place at the four seasons. Through the relationship of landscape and soundscape, what the sound environment of the Tamagawa river should be is discussed.