H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
H04R1/00—Details of transducers, loudspeakers or microphones
H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
Landscapes
Health & Medical Sciences
(AREA)
Otolaryngology
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Physics & Mathematics
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Engineering & Computer Science
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Acoustics & Sound
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Signal Processing
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Soundproofing, Sound Blocking, And Sound Damping
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Procede pour ameliorer la qualite de la restitution d'une ambiance sonore, et appareil de mise en óoeuvre comportant au moins un haut-parleur emettant dans trois directions.