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Method and device for reducing insertion noise of earphone, terminal and storage medium

A headphone and terminal technology, applied in the electronic field, can solve problems such as poor dynamic range of headphones, poor sound quality of headphones, and affecting the output performance of headphones, so as to achieve the effect of reducing noise and ensuring sound quality

Active Publication Date: 2020-06-16
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the above method, the larger the value of the capacitance to the ground, the smaller the earphone insertion noise, but the capacitance to the ground increases the parasitic capacitance between the left and right channels and the ground signal, which makes the dynamic range of the headphone output poor, affecting the The output performance of the earphones, resulting in poor sound quality of the earphones

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  • Method and device for reducing insertion noise of earphone, terminal and storage medium
  • Method and device for reducing insertion noise of earphone, terminal and storage medium
  • Method and device for reducing insertion noise of earphone, terminal and storage medium

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Embodiment Construction

[0056] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0057] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0058] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The invention relates to the technical field of electronics, in particular to a method and device for reducing insertion noise of an earphone, a terminal and a storage medium. The method comprises thesteps: when the terminal recognizes that an earphone starts to be inserted, starting a DC bias voltage with a first preset voltage value; after the earphone is completely inserted, adjusting a DC bias voltage from a first preset voltage value to a second preset voltage value, wherein the second preset voltage value is greater than the first preset voltage value. According to the embodiment of theinvention, the terminal starts a small DC bias voltage when the earphone starts to be inserted; at the moment, the noise generated by some unstable states in the earphone insertion process can be greatly reduced; after the earphone is completely inserted, the DC bias voltage is adjusted to be a voltage value with the appropriate magnitude, the noise is reduced from the source while normal earphone recognition is not affected, and the tone quality effect of the earphone is guaranteed.

Description

technical field [0001] The present disclosure relates to the field of electronic technology, and in particular to a method, device, terminal and storage medium for reducing earphone insertion noise. Background technique [0002] When the earphone is inserted into the earphone socket of the terminal, there will be noise from the left or right channel of the earphone. [0003] In the related art, in order to reduce the noise generated during the earphone insertion process, a switch is usually provided between the headphone power amplifier and the headphone jack, and a corresponding capacitance to ground is set between the switch and the headphone jack. During the earphone insertion process, the terminal switches the switch, and the noise of the earphone insertion is reduced by using the characteristic that the voltage at both ends of the capacitor to the ground cannot be changed suddenly. [0004] In the above method, the larger the value of the capacitance to the ground, the...

Claims

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Application Information

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IPC IPC(8): H04R1/10H04R3/00
CPCH04R1/1041H04R3/00H04R2410/05H04R2420/03
Inventor 张宽陈俊杰倪卫峰
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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