8
4-4. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE THRESHOLD OF HEARING
FOR CONTINUOUS NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
PMFY-P06NBMU-E
PMFY-P06NBMU-E
1
PMFY-P06NBMU-E#2
PMFY-P06NBMU-ER3
PMFY-P06NBMU-ER4
PMFY-P06NBMU-ER5
High
NOTCH
Medium1
Medium2
Low
35
SPL(dB)
33
30
27
LINE
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
High
NOTCH
Medium1
Medium2
Low
37
SPL(dB)
36
34
32
LINE
PMFY-P08/12NBMU-E
PMFY-P08/12NBMU-E
1
PMFY-P08/12NBMU-E#2
PMFY-P08/12NBMU-ER3
PMFY-P08/12NBMU-ER4
PMFY-P08/12NBMU-ER5
90
80
70
60
50
40
30
20
10
63
125
250
500
1000
2000
4000
8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCT
A
VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002
μ
bar)
BAND CENTER FREQUENCIES, Hz
PMFY-P15NBMU-E
PMFY-P15NBMU-E
1
PMFY-P15NBMU-E#2
PMFY-P15NBMU-ER3
PMFY-P15NBMU-ER4
PMFY-P15NBMU-ER5
High
NOTCH
Medium1
Medium2
Low
39
SPL(dB)
37
35
33
LINE
UNIT
5ft
MICROPHONE
CEILING
OC341F
Summary of Contents for CITY MULTI PMFY-P06NBMU-E
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