Audio Engineering

Microphone Technology 659

(b)

Figure 22.7B : Microphone three-dimensional directional response.

(Courtesy of Shure Brothers Incorporated)

250 Hz dotted

2 kHz solid

Measured response

of cardioid mic

180 °

150 °

120 °

90 °

60 °

30 °

0 °

330 °

300 °

270 °

240 °

210 °

0.2

0.8

0.4

0.6

1.0

Figure 22.8 : Measured polar response of cardioid microphone at 250 Hz and 2 kHz.