25
8. Sound data
Wind-Free 1Way Cassette
Sound Pressure level
Unit: dB(A)
1m
1m
Microphone
Model High Mid Low
AM036NN1DEH/∗∗
37 33 30
AM056NN1DEH/∗∗
41 38 35
AM071NN1DEH/∗∗
42 39 36
• NR Curve
1) AM036NN1DEH/∗∗ 2) AM056NN1DEH/∗∗
High
Mid
Low
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
0
5
10
15
20
25
30
35
40
45
50
0
5
10
15
20
25
30
35
40
45
50
63 125 250 500 1000 2000 4000 8000
Sound Pressure Level (dB)
Octave Band Center Frequency(Hz)
High
Mid
Low
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
0
5
10
15
20
25
30
35
40
45
50
0
5
10
15
20
25
30
35
40
45
50
63 125 250 500 1000 2000 4000 8000
Sound Pressure Level (dB)
Octave Band Center Frequency(Hz)
3) AM071NN1DEH/∗∗
High
Mid
Low
NR 50
NR 45
NR 40
NR 35
NR 30
NR 25
NR 20
NR 15
0
5
10
15
20
25
30
35
40
45
50
0
5
10
15
20
25
30
35
40
45
50
63 125 250 500 1000 2000 4000 8000
Sound Pressure Level (dB)
Octave Band Center Frequency(Hz)
NOTE
• Specifications may be subject to change without prior notice.
- Sound pressure level is obtained in an anechoic room.
- Sound pressure level is a relative value, depending on the distance and acoustic environment.
- Sound pressure level may differ depending on operation condition.
- dBA = A weighted sound pressure level
- Reference acoustic pressure 0 dB = 20μPa