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Sound masking-based method for improving satisfaction degree of acoustic environment

A technology of satisfaction and acoustic environment, applied in the direction of measuring ultrasonic/sonic/infrasonic waves, sound-generating equipment, measuring devices, etc., can solve problems such as improving public satisfaction, and achieve the goal of improving the satisfaction of the acoustic environment, improving subjective experience, and reducing noise Effect

Active Publication Date: 2019-01-18
SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the field of environmental noise control, there is no system-based sound masking method to improve the public's satisfaction with their acoustic environment.

Method used

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  • Sound masking-based method for improving satisfaction degree of acoustic environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] At the intersection with heavy traffic, the intermittent intervention of bird chirping is used to make the sound in the low, medium and high frequency bands more balanced in this environment, and at the same time, the traffic noise felt by the crowd in this space is masked by the chirping of birds, reducing the noise of the crowd. Annoyed feelings due to traffic noise.

Embodiment 2

[0040] Intermittent calls of insects and birds are added to the open-air rail transit platform to make the spectrum of the ambient sound more balanced and reduce the interference of the crowd from the wheel-rail noise generated by trains entering and leaving the station. In conjunction with the green landscape posters or videos placed in the station, let The public seems to be in the jungle, improving the troubles caused by noise.

Embodiment 3

[0042] In the hot summer, in the public green space along the main road of the city, add the sound of running water with sometimes bright and sometimes slow rhythm and match it with a high-altitude spray device, so that the people passing by can feel the sound of running water to mask the traffic noise, and at the same time, the spray can make people feel the sound of running water. The matching cool and humid feeling can relieve the irritability caused by traffic noise and high temperature, and improve the comfort of the green environment.

[0043] Based on the relevant laws of psychoacoustics, the present invention improves the living environment from the perspective of people's subjective feelings, improves the crowd's satisfaction with the acoustic environment, and conforms to the concept of people-oriented.

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Abstract

The invention relates to a sound masking-based method for improving satisfaction degree of an acoustic environment. The sound masking-based method comprises the following steps of 1) acquiring environmental noise characteristic according to environmental noise samples with representative significance in different scenes and at different times; 2) selecting a main parameter affecting the satisfaction degree of the acoustic environment according to the characteristic of the environmental noise, and acquiring an expression of the satisfaction of the acoustic environment; and 3) adding effective masking sound including the main parameter to the environment, and adjusting the main parameter until the satisfaction degree of the acoustic environment is not improved any longer. Compared with the prior, the sound masking-based method has the advantages of psychological acoustics-based masking effect, multi-element improvement and the like.

Description

technical field [0001] The invention relates to the field of environmental noise control, in particular to a method for improving the satisfaction of the acoustic environment based on sound masking. Background technique [0002] With the rapid development of urbanization, the problem of environmental noise pollution has attracted more and more public attention. Traditional noise reduction technologies focus on noise reduction of sound sources, sound absorption and insulation in the process of transmission, and sound insulation in the environment of noise receivers, which reduces the noise level of urban environments to a certain extent and improves the living environment of residents. However, due to the limitations of traditional noise reduction measures in the control of traffic noise and fixed equipment noise and the characteristics of low- and medium-frequency noises that are not easy to attenuate, urban environmental noise is often dominated by low- and medium-frequency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G10K11/175
CPCG01H17/00G10K11/175
Inventor 周裕德张玮晨邵志跃祝文英储益萍应乐惇
Owner SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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