0
30
60
90
120
150
180
210
240
270
300
330
250 Hz
1 kHz
4 kHz
0
30
60
90
120
150
180
210
240
270
300
330
250 Hz
1 kHz
4 kHz
5
-5
-15
-25
-35
-45
-55
-60
-50
-40
-30
-20
-10
0
0
30
60
90
120
150
180
210
240
270
300
330
250 Hz
1 kHz
4 kHz
Cardioid Omnidirectional Figure-8
Speci c a t i o n s - P o l a r P a t t e r n s
