Loudspeaker and control method applied to loudspeaker

A sound box and controller technology, applied in the field of acoustics, can solve the problems of poor sound transient performance, low low frequency efficiency of closed boxes, high power consumption, etc., and achieve the effect of large low frequency extension and high low frequency efficiency.

Active Publication Date: 2020-06-23
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the inverter box is efficient, but it is difficult to increase the low frequency extension below the resonant frequency even with power compensation
The low-frequency efficiency of the airtight box is low. Although the low-frequency extension can be increased, it needs to consume a lot of power to compensate. At the same time, the low-frequency compensation speaker has a large vibration mass, large inertia, and poor transient performance of the sound.

Method used

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  • Loudspeaker and control method applied to loudspeaker
  • Loudspeaker and control method applied to loudspeaker
  • Loudspeaker and control method applied to loudspeaker

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Embodiment Construction

[0025] Various preferred embodiments of the present disclosure will be described below with reference to the accompanying drawings. The following description with reference to the accompanying drawings is provided to assist understanding of example embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to aid in understanding but they are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the disclosure. Also, detailed descriptions of functions and constructions well-known in the art will be omitted to make the description clearer and more concise.

[0026] First, refer to figure 1 A speaker according to an embodiment of the present disclosure is described. figure 1 is a schematic structural view illustrating the sound box accordi...

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Abstract

A sound box and a control method applied to the sound box are disclosed. The sound box includes a cavity having a first opening and a second opening on an outer wall thereof; a first loudspeaker located in the cavity and disposed outside the cavity through the first opening; a second loudspeaker located in the cavity and disposed outside the cavity through the second opening; and a controller forcontrolling the first loudspeaker to actively operate and the second loudspeaker not to actively operate with respect to the first audio data; For the second audio data, both the first speaker and thesecond speaker are controlled to actively operate.

Description

technical field [0001] The present disclosure relates to the field of acoustics, and more particularly, to a sound box and a control method applied to the sound box. Background technique [0002] With the rapid development of new audio consumer electronics products such as notebook computers, tablet computers, flat-screen TVs, and smart phones, traditional speakers tend to be miniaturized. [0003] At present, there are two main categories of speaker miniaturization solutions. One is a simple airtight box, and the other is an inverted box. Inverted cabinets have higher efficiency at low frequencies, but the frequency response decays rapidly below the cabinet's resonant frequency. Although the low-frequency range of the airtight box cannot be compensated by the acoustic structure, the low-frequency attenuation of the speaker is gentle. At lower frequencies, the efficiency is higher than that of the vented speaker. [0004] That is to say, both the phase inverter box and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R1/28H04R3/04H04R3/12
CPCH04R1/2869H04R3/04H04R3/12
Inventor 鞠波
Owner LENOVO (BEIJING) LTD
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