The normative use of noise is noise, from the physiological point of view, any interference with people's rest, study and work as well as on the sound people want to listen to the sound of interference, that is, unwanted sound, collectively referred to as noise. When the noise on people and the surrounding environment caused by adverse effects, the formation of noise pollution.
Whatever affects people's normal learning, work and rest, in some occasions "unwanted sound", are collectively known as noise. Such as machine combustion sound, a variety of transportation sound, people's noise and a variety of sudden sound, are known as noise. With the development of industrial production, transportation, urban construction, as well as the increase in population density, the increase in family facilities (television sets, etc.), environmental noise is increasingly serious, it has become a major pollution of human society and the environment.
Legal basis: "Chinese People's *** and the Prevention and Control of Environmental Noise Pollution Law"
Article 45 prohibits the use of high-pitched broadcasting loudspeakers by any unit or individual in the urban area in the concentration of noise-sensitive buildings. In urban urban streets, squares, parks and other public **** place to organize entertainment, assembly and other activities, the use of audio equipment may produce interference with the surrounding living environment of excessive volume, must comply with the provisions of the local public security organs.