What is "Directivity Index"?

Directivity Index

The ratio, expressed in dB, of a microphone’s output produced by a plane sound wave arriving in the direction of the reference axis, to the microphone’s output produced by a diffuse sound field having the same frequency or frequency band and sound pressure.

The typical directivity index for standard microphones is between 0 dB (omnidirectional) and 6 dB (hyper-cardioid). More directional microphones, like shotguns, can exhibit higher directivity, but this may vary with frequency.


 

Be the first to hear about our new products, workshops, events, contests, offers and more.

Subscribe
Loading