Airflow noise elimination method and device, computer equipment and storage medium

A noise and airflow technology, applied in the computer field, can solve problems such as poor airflow noise elimination effect, and achieve the effect of improving user experience and sound output quality

Pending Publication Date: 2020-10-13
AAC TECH PTE LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides an airflow noise elimination method, device, computer equipment and storage medium, which are used to solve the problem of poor airflow noise elimination effect in the prior art

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  • Airflow noise elimination method and device, computer equipment and storage medium
  • Airflow noise elimination method and device, computer equipment and storage medium
  • Airflow noise elimination method and device, computer equipment and storage medium

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Embodiment Construction

[0045] 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.

[0046] In order to solve the problem of poor effect of improving the airflow noise of the micro-speaker by changing the physical structure of the speaker by changing the structure of the cavity, the design of the sound hole and the duct, etc. in the traditional technology.

[0047] Based on the above problems, in this embodiment, a method for eliminating airflow noise is proposed. The implementation of the method may rely on a computer program that can run on a com...

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Abstract

The embodiment of the invention discloses an airflow noise elimination method. The method comprises the steps: collecting an original audio signal in a miniature loudspeaker, and carrying out the preprocessing of the original audio signal to obtain an initial signal; performing feature extraction on the initial signal to obtain audio features; classifying the initial signal according to the audiofeatures, and determining the type of the initial signal; when the type of the initial signal is a signal containing excitation airflow noise, performing signal compression processing on the initial signal to obtain a target compressed signal, analyzing and quantifying the audio features, and determining the audio signal of the air flow noise. Since only the air flow noise signal is filtered, theoriginal audio signal is reserved to the maximum extent, and on the basis of not changing the structure of the miniature loudspeaker, a series of processing is carried out on the audio features, so that the sound output quality of the miniature loudspeaker is improved, and the user experience is improved. In addition, the invention further provides an airflow noise elimination device, computer equipment and a storage medium.

Description

【Technical field】 [0001] The present invention relates to the technical field of computers, in particular to an airflow noise elimination method, device, computer equipment and storage medium. 【Background technique】 [0002] Speaker airflow noise is one of the main sources of speaker noise. The cavity of the micro-speaker is small and the structure is precise, but the amplitude of the diaphragm is large, and the airflow in the cavity is easy to form turbulent flow and generate flow-induced noise. The flow-induced noise is resonantly amplified by a small cavity, forming a concentrated distribution of broadband energy near the high-frequency resonance peak with a higher frequency, forming the airflow noise in people's subjective listening, mainly manifested as "hissing" and "rustling" sounds. Airflow noise is a common problem in microspeakers, and it is more obvious in the case of large voltage and large amplitude. There are differences between different samples, which are s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/24G10L25/51G10L21/0264G10L21/0232G06N20/10G06K9/62
CPCG10L25/24G10L25/51G10L21/0232G10L21/0264G06N20/10G06F18/2411
Inventor 吴锐兴田晓晖叶利剑
Owner AAC TECH PTE LTD
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