Sound quality improvement system based on vehicle
A technology to improve the system and sound quality, applied in the direction of transducer circuit, sensor, signal processing, etc., can solve the problem of low price, achieve the effect of eliminating wire resistance, eliminating noise, and ensuring stability
Inactive Publication Date: 2017-03-22
ZHENGZHOU BEIDOU COMM TECH
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However, the price is not low. At the same time, refitting the speakers will also increase the necessary wiring harness, so the cost of the wiring harness and the uncertainty of wiring are also considered by the user.
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[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0012] see figure 1 , in an embodiment of the present invention, a car-based sound quality improvement system includes a vehicle-mounted host, an isolation and noise reduction module, a differential signal input module, an operational amplifier, a digital-to-analog conversion module, a film capacitor, a high-fidelity power amplifier, and a speaker. The host is sequentially connected with an isolation and noise reduction module, a differential signal input modu...
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The present invention discloses a sound quality improvement system based on a vehicle. The system comprises a vehicle host, an isolation noise reduction module, a difference signal input module, an operational amplifier, a digital-to-analogue conversion module, a film capacitor, a high-fidelity power amplifier and a loudspeaker. The vehicle host is connected in order with the isolation noise reduction module, the difference signal input module, the operational amplifier, the digital-to-analogue conversion module, the film capacitor, the high-fidelity power amplifier and the loudspeaker. The sound quality improvement system based on the vehicle employs difference signal input to greatly remove the external electromagnetic interference and improve the signal output efficiency; and moreover, the sound quality improvement system based on the vehicle employs the isolation noise reduction module to effectively eliminate the problem caused by the wire resistance and eliminate the noise caused by an automobile electric device.
Description
technical field [0001] The invention relates to an audio system, in particular to a car-based lifting system. Background technique [0002] Nowadays, the number of cars in our country is increasing every year, and users have higher and higher requirements for the experience in the car. Among them, the sound quality of music played in the car is a focus of the majority of users, so the modification of car audio is gradually It has become a hot spot for automotive electronic modification nowadays. [0003] There are generally two existing technologies that can improve the sound quality in the car: [0004] 1. Refit the original car head unit and power amplifier. The head unit is the sound source of the entire audio system, and it is also a control center. The control of the sound system is realized through the head unit, and the built-in power amplifier is used to strengthen the signal. However, the modification of the main engine is expensive, and the modification of the ma...
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IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/21
Inventor 不公告发明人
Owner ZHENGZHOU BEIDOU COMM TECH