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Noise reduction processing method and device, equipment, storage medium and program

A technology of noise reduction processing and noise reduction earphones, which is applied in the field of data processing, can solve the problems of poor noise reduction effect of feedforward noise reduction earphones, etc., and achieve the effect of eliminating narrowband noise, eliminating broadband noise, and ensuring the effect of noise reduction

Active Publication Date: 2021-08-10
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Application Information

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Problems solved by technology

[0005] This application provides a noise reduction processing method, device, equipment, storage medium and program to solve the problem of poor noise reduction effect of feedforward noise reduction headphones in scenes with complex environmental noise

Method used

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  • Noise reduction processing method and device, equipment, storage medium and program
  • Noise reduction processing method and device, equipment, storage medium and program
  • Noise reduction processing method and device, equipment, storage medium and program

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Embodiment Construction

[0089] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0090] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of this application and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not nece...

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Abstract

The invention provides a noise reduction processing method and device, equipment, a storage medium and a program, and the method comprises the steps: obtaining a first noise signal (namely, a broadband noise signal) in an auricle external environment collected by a first microphone, and carrying out the filtering processing of the first noise signal through a feed-forward filter, and generating a second noise signal (namely a narrow-band noise signal) corresponding to the external environment of the auricle, filtering the second noise signal through a notch filter to obtain a second filtered signal, and further performing noise reduction processing on the noise reduction earphone according to the first filtered signal and the second filtered signal. Through the above process, the noise reduction earphone not only can eliminate broadband noise in the external environment of the auricle, but also can eliminate narrowband noise in the external environment of the auricle, so that the noise reduction effect can be ensured even in a scene with complex environmental noise.

Description

technical field [0001] The embodiments of the present application relate to the technical field of data processing, and in particular, to a noise reduction processing method, device, equipment, storage medium, and program. Background technique [0002] With the progress of society and the improvement of people's living standards, earphones have become an indispensable daily necessities for people. Some headphones use active noise cancellation technology, which makes the headphones have a noise-canceling effect. [0003] In the active noise reduction technology, there is a feed-forward noise reduction technology. The earphone based on the feed-forward noise reduction technology is provided with a microphone outside the pinna and a speaker inside the pinna. The principle of active noise reduction is to collect the noise signal in the external environment of the earphone through the microphone. A denoising signal with the same amplitude and opposite phase as the collected no...

Claims

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Application Information

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IPC IPC(8): H04R1/10G10K11/178
CPCH04R1/1083G10K11/17853G10K11/1787H04R2460/01G10K2210/1081G10K2210/3028
Inventor 魏孜宸张菊方思敏
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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