Some remarks about the ATHformula.
The result are differing really a lot from my experiments.
The difference is 10 dB and more at >=12 kHz.
For very young people the difference may be larger.
Examples:
Frequency Formula Experiment Difference
[kHz] [dB] [dB] [dB]
1 3.36 2.72 0.6
2 -0.25 -1.40 1.1
3 -4.56 -4.64 0.1
4 -3.38 -5.50 2.1
5 0.48 -2.27 2.8
6 2.08 3.89 -1.9
7 3.16 8.13 -5.0
8 4.78 11.27 -6.5
9 7.18 13.23 -6.0
10 10.57 14.39 -3.8
11 15.17 12.85 2.3
12 21.23 11.49 10
13 29.02 13.24 16
14 38.85 18.13 21
15 51.04 23.57 28
16 65.93 35.63 30
17 83.89 51.24 32
18 105.33 60.13 45
Binaural, Sennheiser HD 560, diffuse field.
--
Frank Klemm
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