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4 Frequency resolution
Naming bands
Models SE and DL
Exact Center
Frequency (Hz)
Names of Octave
Bands (Hz)
Names of Third-octave
Bands (Hz)
12.589
12.5
15.849
16
16
19.953
20
25.119
25
31.623
31.5
31.5
39.811
40
50.119
50
63.096
63
63
79.433
80
100.00
100
125.89
125
125
158.49
160
199.53
200
251.19
250
250
316.23
315
398.11
400
501.19
500
500
630.96
630
794.33
800
1000.0
1000
1000
1258.9
1250
1584.9
1600
1995.3
2000
2000
2511.9
2500
3162.3
3150
3981.1
4000
4000
5011.9
5000
6309.6
6300
7943.3
8000
8000
10000
10000
12589
12500
15849
16000
16000
19953
20000
Table 1-1: Acoustical range bands