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SEIBU OFFICEACOUSTIC
PERFORMANCE AUDI
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ACOUSTIC PERFORMANCEAUDIT
SPACE
(TIME: 1:30 / 5 EMPLOYEES)
SOUND LEVEL
(dB)
ENTRANCE 45 dB
OFFICE(SUBTLE CONVERSATION)
49 54 dB
OFFICE
(BUSY CONVERSATION)
52 73 dB
OFFICE(NEAR AIRCON)
49 51 dB
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ACOUSTIC PERFORMANCEAUDIT
SEIBU ADMINISTRATION OACOUSTIC PERFORMANCE
LO!EST SOUND LEVEL AT'#%#*' +,$-' $%& ,$.,'&%73 dB +,'#
%,' '0-"''"*' ,& ,'/ *"#/''*, "%,'
A**"d$#. %" A*"&%$* S%"6 %,' ANSI (28) # "'+,$*, $& -$'
%,' -# "6 %,Ad0$#$&%%$"# O*' &,"&"#d -'/'- "6 35 39 dB
'0-"''& %" '6"0 +'%& %,''6"' %,' &"#d -S'$: O*'
d"'& #"% 6-- &%#dd #d ,& ,$., &6" # "*' +$%, %,%
$#d
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E;ISTIN< ACOUSTIC CONDIT
PLAN OF SEIBU ADMINISTRATION OFFICE
LE
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E;ISTIN< BUILDIN< MATERIALS SOUND ABSORPTION COEFFICIE
CATEGORY MATERIALS ABSORPTION
COEFFICIENT COLOR S
T
5>
2>
4>
CEILIN< !OOD 1 ? 7 !ITE
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CATEGORY M2ATERIALS ABSORPTION
COEFFICIENT COLOR
5>
2>
4>
!ALL SMOOT PAINTEDCONCRETE
? 9 8 BEI
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CATEGORY MATERIALS ABSORPTION
COEFFICIENT COLOR S
T
5>
2>
4>
FURNITURE !OODEN TABLESAND CAIRS
22 38 3 !ITE BRO!N
FURNITURE UPOLSTEREDSEATS
? ? ? LI
