The present invention relates to directional acoustic system, comprising a plurality of sound emitters each configured within an enclosure having at least one sound emitting opening, the plurality of sound emitters being spaced apart from each other, at least one of the spaced apart sound emitters emitting an acoustic signal having a different frequency from neighbouring sound emitters.
Directional acoustic system
30.05.2018
Patent
Elektronische Ressource
Englisch
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC / H04R LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS , Lautsprecher, Mikrofone, Schallplatten-Tonabnehmer oder ähnliche akustische, elektromechanische Wandler |