Assertion: directional microphone | /r/HasProperty | placed at a 90 degree angle
Facets:
value: to each other
type: TRANSITIVE-OBJECT
value: with the directional microphone
type: OTHER
Source sentences:
text: The Mid-Side (M-S) technique uses a directional microphone (M) and a bidirectional (figure-8) microphone (S), placed at a 90 degree angle to each other with the directional microphone facing the sound-stage.