Noise reduction circuit, noise reduction circuit processing system and computer readable storage medium

A circuit and noise reduction technology, applied in the field of communication, can solve the problems of poor noise reduction effect and achieve the effect of improving noise reduction effect and accurate noise reduction processing

Inactive Publication Date: 2018-02-16
SHENZHEN GIONEE COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The noise reduction circuit collects external noise and processes the external noise. Since the external noise collected by the noise reduction circuit is quite different from the noise actually heard by the human ear, the noise reduction effect of the current noise reduction circuit is poor.

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  • Noise reduction circuit, noise reduction circuit processing system and computer readable storage medium
  • Noise reduction circuit, noise reduction circuit processing system and computer readable storage medium
  • Noise reduction circuit, noise reduction circuit processing system and computer readable storage medium

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Embodiment Construction

[0017] 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 some of the embodiments of the present invention, but not all of them. Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0018] Based on the embodiments of the present invention, all other embodiments obtained ...

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Abstract

A noise reduction circuit and a noise reduction circuit processing system, the noise reduction circuit includes a playback sound cavity, a microphone and a speaker arranged in the playback sound cavity, a first amplifier, a second amplifier, a micro control unit, an attenuator, and an inverting addition device and the first mixer, the output of the microphone is connected to the first input of the inverting adder through the attenuator, the second input of the inverting adder and the input of the first amplifier are connected to the original audio signal, and the inverting The output terminal of the adder is connected to the first input terminal of the first mixer through the second amplifier, the second control terminal of the micro control unit is connected to the control terminal of the second amplifier, and the first control terminal of the micro control unit is connected to the control of the attenuator terminal, the detection terminal of the micro control unit is connected to the detection terminal of the first amplifier, the output terminal of the first amplifier is connected to the second input terminal of the first mixer, and the output terminal of the first mixer is connected to the input terminal of the speaker. Implementing the embodiments of the present invention can improve the noise reduction effect.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a noise reduction circuit, a noise reduction method and a computer-readable medium. Background technique [0002] Nowadays, there are more and more noises in the environment that people live in. With the development of technology, users have higher requirements for the noise reduction function of audio equipment such as speakers and headphones, especially for people who pursue high-quality life and are sensitive. Noise disturbances can be very painful. [0003] In order to reduce the impact of noise on the playback effect of audio equipment, a noise reduction circuit is generally added to the audio equipment. The noise reduction circuit collects external noise and processes the external noise. Since the external noise collected by the noise reduction circuit is quite different from the noise actually heard by the human ear, the noise reduction effect of the current...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R3/00
CPCH04R3/00H04R2410/01H04R2420/01
Inventor 武超
Owner SHENZHEN GIONEE COMM EQUIP
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