Adaptive loudspeaker adjusting system and method

An adaptive adjustment, loudspeaker technology, applied in the field of signal processing, can solve the problems of reduced diaphragm travel, small speaker installation space, and small internal space

Pending Publication Date: 2018-08-17
ZILLTEK TECH SHANGHAI +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0002] As portable devices become thinner and thinner, the internal space becomes smaller and smaller, and the installation space for speakers (or horns) is also smaller and smaller. Based on the working principle of speakers, the volume of speakers is the volume of air pushed per unit time , after the speaker becomes thinner, it means that the travel of the diaphragm is bound to be reduced. Since the frequency sensed by the human ear is fixed, under this condition, in order to achieve the corresponding volume standard, it poses a great challenge to the design of the speaker.

Method used

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  • Adaptive loudspeaker adjusting system and method

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Embodiment Construction

[0034] 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 creative efforts fall within the protection scope of the present invention.

[0035] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0037] refer to figure 1 , figure 2 , a loudspeaker adaptive tuning system comprising,

[0038] A power ampl...

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Abstract

The invention relates to the field of signal processing, in particular to an adaptive loudspeaker adjusting system and method. The method comprises the following steps that 1, an input signal is subjected to power amplification to output a driving signal for driving a loudspeaker; 2, the output transient current of a power amplification unit is acquired; 3, the transient impedance is calculated out according to the output transient current; and 4, when it is judged that the change rate of the transient impedance in a unit time is higher than a set threshold, the set threshold is lowered. According to the adaptive loudspeaker adjusting system and method, by acquiring the impedance of the loudspeaker in real time, circuit parameters are adaptively adjusted according to the change characteristic of the transient impedance, and therefore the loudspeaker can be protected from being burned out in real time while the audio performance is guaranteed.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to a loudspeaker adjustment system and method. Background technique [0002] As portable devices become thinner and thinner, the internal space becomes smaller and smaller, and the installation space for speakers (or horns) is also smaller and smaller. Based on the working principle of speakers, the volume of speakers is the volume of air pushed per unit time , After the speaker becomes thinner, it means that the stroke of the diaphragm is bound to be reduced. Since the frequency sensed by the human ear is fixed, under this condition, in order to achieve the corresponding volume standard, it poses a great challenge to the design of the speaker. Contents of the invention [0003] The object of the present invention is to provide a loudspeaker adaptive adjustment system and method to solve the above problems. [0004] A loudspeaker adaptive adjustment system, comprising, [0005] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2430/00
Inventor 叶菁华
Owner ZILLTEK TECH SHANGHAI
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