Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 4 (Q.No. 31)
31.
A directional microphone gives an output of 0.5 mV whereas an omnidirectional one gives an output of 0.5 μV in the same position for the same sound pressure. The directivity of the directional microphone is
120 dB
90 dB
60 dB
30 dB
Answer: Option
Explanation:

Directivity =

= 60 dB.

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