Frequency

DB

20

19.274

30

18.593

40

17.792

50

16.946

60

16.101

70

15.283

80

14.506

100

13.089

160

9.809

200

8.220

300

5.485

400

3.784

500

2.648

700

1.234

1000

0.000

2000

-2.589

2122

-2.867

3000

-4.740

4000

-6.605

5000

-8.210

7000

-10.816

8000

-11.894

10000

-13.734

15000

-17.157

20000

-19.620

30000

-23.117