Assertion: bidirectional microphone | /r/CapableOf | pick up equal level of sound
Facets:
value: from the front
type: MANNER
value: from the rear
type: TRANSITIVE-OBJECT
Source sentences:
text: Bidirectional microphones, also known as figure-of-eight devices, pick up an equal level of sound from the front and the rear, but sound from the side is blocked out, hence the '8'-shaped polar pattern.