Multidirectional selective noise reduction system and method for space environment

Abstract

The invention discloses a multidirectional selective noise reduction system and method for a space environment. The system comprises a noise detection module, a noise processing module, a central control system, a human voice elimination module and a noise reduction module, the noise detection module is used for detecting noise in the environment, the noise processing module is used for processingthe noise detected by the noise detection module, the central control system is used for controlling the whole multi-point noise reduction system, the human voice elimination module is used for identifying and eliminating human voice in noise detected by the noise detection module, and the noise reduction module is used for reducing the noise detected by the noise detection module. The multidirectional selective noise reduction system is scientific, reasonable and safe and convenient to use, the operation that noise reduction processing needs to be conducted on each noise signal is avoided, the step that noise reduction is conducted on the multiple noise signals one by one is omitted, differentiated noise reduction is conducted on the noise signals through the multi-point noise reductionsystem, and the multi-point noise reduction system is more intelligent and user-friendly.

Description

technical field [0001] The invention relates to the technical field of noise reduction, in particular to a multi-directional selective noise reduction system and method for a space environment. Background technique [0002] Noise is the sound made by objects when they move irregularly. Noise will seriously affect people's work and life, and in severe cases will endanger people's health and life safety. Currently, active noise reduction is used to block and offset noise. Compared with passive noise reduction, active noise reduction is to generate reverse sound waves equal to the external noise through the noise reduction system to neutralize the noise, so as to achieve the effect of noise reduction. Passive noise reduction mainly uses sound insulation materials to block external noise. Some noise active noise reduction systems have the following problems when they are used: [0003] 1. The existing noise reduction processing methods for noise mostly use one-to-one noise redu...

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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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