DARK NOISE GENERATION METHOD AND DARK NOISE GENERATOR

PROBLEM TO BE SOLVED: To provide a dark noise generation method and a dark noise generator, capable of attaining an indoor environment where life sound from the outside of a room is hardly caught.SOLUTION: In a building having a system, as a 24-hour ventilation system, configured to perform natural air supply through an air supply port 1 communicating with between a building outside F and an indoor space R and perform forcible exhaust with an exhaust fan, a resistance part 2 as resistance against passage of air is provided inside the air supply hole 1, and an air supply fan 4 is provided at an air supply port 3 on the inner space side in the air supply hole 1, thereby strengthening sound that air inflows into the inner space R through the air supply hole 1.SELECTED DRAWING: Figure 1 【課題】室外からの生活音が聞こえ難い室内環境を実現するための暗騒音発生方法及び暗騒音発生装置を提供する。【解決手段】２４時間換気システムとして建物外部Ｆと室内Ｒとを連通させた給気孔１を介した自然給気を行うとともに排気ファンを使って強制排気を行う方式の建物において、給気孔１の内側に空気が通過する際の抵抗となる抵抗部２を設けるとともに、当該給気孔１における室内側の給気口３に給気ファン４を設けることにより、当該給気孔１を介して室内Ｒに流入する音の大きさを大きくするようにした。【選択図】図１