Vehicle-mounted noise reduction sound box

The utility model relates to the technical field of sound boxes, in particular to a vehicle-mounted noise reduction sound box, which is characterized in that a loudspeaker comprises a loudspeaker support, at least two pickup holes are arranged at the edge of the inner side of the loudspeaker support...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHEN LONGWEI, YU YAGUANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SOUND-PRODUCING DEVICES
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Beschreibung
Zusammenfassung:	The utility model relates to the technical field of sound boxes, in particular to a vehicle-mounted noise reduction sound box, which is characterized in that a loudspeaker comprises a loudspeaker support, at least two pickup holes are arranged at the edge of the inner side of the loudspeaker support, a microphone is arranged in each pickup hole, the number of the microphones is at least two, and the microphones are used for collecting sound signals and positioning sound directions. The control circuit board comprises an MCU main control chip and an ANC active noise reduction chip, the microphone and the ANC active noise reduction chip are respectively connected to the MCU main control chip, a loudspeaker SPK is arranged at the bottom of the loudspeaker support, and the loudspeaker SPK is connected to the MCU main control chip. Compared with the prior art, the vehicle-mounted noise reduction sound box solves the problem that the hearing of a driver is influenced by noise generated by high-speed driving of an a