A multi-directional selective noise reduction system and method for a space environment

Abstract

The invention discloses a multi-directional selective noise reduction system and method for a space environment, comprising a noise detection module, a noise processing module, a central control system, a human voice elimination module, and a noise reduction module. The noise is detected, the noise processing module is used to process the noise detected by the noise detection module, the central control system is used to control the entire multi-point noise reduction system, and the human voice elimination module is used to eliminate noise The human voice in the noise detected by the detection module is identified and eliminated, and the noise reduction module is used to reduce the noise detected by the noise detection module. The present invention is scientific and reasonable, safe and convenient to use, avoids the operation of noise reduction processing for each noise signal, reduces the steps of noise reduction for multiple noise signals one by one, and makes the multi-point noise reduction system realize effective noise signal reduction. Differential noise reduction makes the multi-point noise reduction system more intelligent and humanized.

Description

Technical field [0001] The present invention relates to the field of noise reduction techniques, in particular a multi-directional selective noise reduction system and method for spatial environment. Background technique [0002] Noise is a sound emitted by an irregular movement of an object. The noise will seriously affect people's work and life, which will also endanger people's physical health and safety, and currently blocking and offsetting active noise reduction And passive noise reduction, the active noise is to generate a reverse sound wave equal to the external noise by noise reduction system, neutralize the noise, thereby achieving noise reduction, passive noise mainly blocking external noise, now Some noise proactive noise reduction systems have the following issues: [0003] 1, existing noise reduction processing method for noise, one-to-one noise reduction, when there is multiple noise in the space, more resources and cost need to be lowered, and multiple points The ...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing noise reduction processing methods for noise mostly use one-to-one noise reduction. When there are multiple noises in the space at the same time, it needs to spend more resources and costs for noise reduction processing, and multiple noise reduction The noise signals are independent of each other, and there is a certain influence on each other, which affects the noise reduction effect;

[0004] 2. The existing multi-point noise reduction system, when reducing the noise in the space, will also weaken the human voice, affecting people's normal communication and communication;

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