Second And Third Harmonic Distortion Of The Mouth Simulator - BRUEL & KJAER HF HATS 5128 User Manual

22 High-frequency Head and Torso Simulator (HF HATS) Type 5128 – User Manual
Fig.3.3
The sound pressure
level distribution
around the mouth
opening with the
mouth insert in place
(average from 300 Hz
to 3.3 kHz)
Fig.3.4

Second and third harmonic distortion of the mouth simulator

−10
−20
−30
−40
−50
dB −60
−70
−80
−90
−100
100
V e rtic a l P la n e
0 2 0 4 0 6 0m m8 0
+ 6
+ 4
+ 2
0
– 2
– 4
2 0
– 6
– 8 d B
4 0
– 1 0
6 0
8 0
m m
1 0 0
H o riz o n ta l P la n e
1 0 0 0 2 0 4 0
+ 6
+ 4
+ 2
0
2 0
– 2
– 4
4 0
6 0
– 1 2
8 0
m m
– 1 4
1 0 0
2nd Harmonic 3rd Harmonic
1000
Frequency (Hz)
6 0m m8 0 1 0
– 6
– 8 d B
– 1 0
– 1 2
– 1 4
0 5 0 2 1
10 000
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