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
H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only
H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
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Health & Medical Sciences
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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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Obtaining Desirable Characteristics In Audible-Bandwidth Transducers
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Procédé de fractionnement de la restitution sonore de signaux modulés dans des transducteurs montés en parallèle, et jeux de transducteurs correspondants
Nouveau transducteur de graves à moteur d'excitation pour haut-parleurs d'enceintes acoustiques permettant un ajustement du couplage entre le haut-parleur et le local d'écoute