Calculation of Predictable of Noise level(Sound pressure level) inside room:Point Sound Source

Calculation of Predictable of Noise level(Sound pressure level) inside room:Point Sound Source

1Sound power level of Source sound:Lw(dB)-
2Distance:r(m)-
3Average sound absorption coefficient:α0<α<1
4Total surface area of room:S(m^2)-
5Directivity coefficient:Q1,2,4 or 8. If source will be set on the floor,Q=2.
6GraphPlot Input Data: , Figure:
7Number of gridlines of Graph x-axis, y-axis -
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Keyword・Reference・Remarks・History

LaTex

Keyword

Predictable,Noise level,Sound pressure level,inside room,Point Sound Source,Sound power level of Source sound,Directivity coefficient:Q

Reference

[1]:社団法人全国都市清掃会議:『ごみ焼却施設環境アセスメントマニュアル』,1986,pp.117-126.
[2]:前川純一:『建築・環境音響学』,共立出版,1990,pp.95-99.
[3]:田中俊六、武田仁、岩田利枝、土屋喬雄、寺尾道仁:『最新 建築環境工学 改訂3版』,井上書院,pp.283-284,2006

Remarks

・Noise level(Sound pressure level):LP(dB)
・Sound power level of Source sound:Lw(dB)
・Average sound absorption coefficient:α
・Directivity coefficient:Q
・Making Equation Image is powered by CODECOGS

History

・2011/01/16:Upload

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