Random Incidence - Larson Davis SoundAdvisor 831C Reference Manual

FIGURE A-38 Model 831 with 377C20 Microphone
290°
280°
270°
260°
250°
A.7.3 Random Incidence
Normalized to 1 kHz at 0 degrees.
FIGURE A-39

Random Incidence

2
0
-2
-4
-6
-8
-10
-12
-14
SoundAdvisor Model 831C
350°
340°
330°
320°
310°
300°
240°
230°
220°
210°
200°
190°
0°
10°
2
20°
30°
-2
40°
-6
-10
-14
-18
-22
-26
140°
150°
160°
170°
180°
Frequency (Hz)
Frequency (Hz)
251
316
50°
398
501
60°
631
794
70°
1000
80° 1259
1585
90°
1995
2512
100°
3162
3981
110°
5012
6310
120°
7943
130°
10000
12589
15849
19953
Randomized
A-33