the interfering sound source is located in the angle area of the highest cancellation of the microphone (approx. 180°; see polar diagram).
Polar diagram
30°
0°
030°
60°
10
15
20
25
60°
90°
120°
150°
125Hz
250Hz
500Hz
1000 Hz
dB | 90° |
120°
| 150° |
|
180° | 2000 | Hz |
| ||
| 4000 | Hz |
| 8000 | Hz |
| 16000 | Hz |
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