Noise Noise can affect many people. In addition to the recognition that it is sound to enjoy, such as music and other sounds are most of the noise, including an engine would be different because of this incident. The noise is thus a description that is the type that we do not want.That we do not want to have a very wide range. From the minimal until the harm to health. For the general public. Strategic decisions can be made to sound very different RA chitwisai per compound, but the audio must be for scholars using tools to strategic chitwisai these results.Indexes suffering annoying Nuisance caused by trouble sound levels rise and fall. For example, noise from the traffic on the road from the construction area from the factory or from a sound event. In General, we will describe using the decibel. A. only one not because the level is changed. The levels also vary considerably with time. Therefore, the development of indexes. Based on the basis of sound decibel levels. ACE and considered, including variations with time. The noise from the construction.We may look at whether the noise from the construction area. Make a temporary defect, but in areas that are developed, the main use is to snap candids. The noise from the project, it is often a problem that affects stress khrat housing. Space commerce and industrial zones in residential areas. The noise from construction may be causing difficulties to communicate in the Office environment and the other Commerce, especially when they are opened in the industrial environment. Noise may increase the problem of there are more increases the risk of more damage to the ear. The contractor should note that limits the noise level at the edge of the area made the construction standard should be as defined by the Government, and it must be sound, as well as an analysis of the sound.Noise from road traffic. The traffic seems to be causing trouble sound most annoying and affect as many people as possible. The development of new roads, expressways and railways, it means that more people will be affected by higher volume. The noise from the traffic explosion spread into the environment the most and make trouble continuing nuisance. Into the House, shopping centers, offices and other work locations have developed an index, an index of noise from traffic. Sound pollution index to be used to deal with the problem of noise from transport. Share important characteristics is the need to measure noise conditions, precise and reliable.The study found that the suffering caused by the nuisance of noise from road traffic. There is a good correlation with the volume level of sound statistical LA10, which is the one that is 10 percent of the time, the volume level will be higher than this value. For example, if the volume of one hour as 75 LA10 means during the hours that the volume is greater than 75 DB. A. for a period of 6 minutes and is less than or equal to 75 DB. In the time remaining for another 54 minutes. We may also provide statistical level definition., such as the time in which the LA90 per cent volume is much higher than the value 90 (LA90), which is comparable to the interval with little voice. The sound of the airplane The growth of air transport. Cause problems with noise from the airport, and the plane increasing violence. Many affected people because airports usually are not very far away cities and routes through it, often over many places.The sound from the plane for possibly breaking concentration in the classroom. Flying at night can interfere with sleep, so to describe trouble annoying. An airplane had come from an attempt to develop an index measuring the sound of the airplane up and used like a unit, called c-50 per noi [Perceived Noise (PN dB)] for the jet plane is approximately equal to the value of PN dB dB (A) dB measurement + 13 PN is trouble. Nuisance caused by the single-engine plane. If it is near the airport will be required to take a number and type of aircraft, integrated thinking. Rail traffic. Noise from trains as phak. using sound level LAeq, which is the average energy and convert it to a constant volume during that period, other power-packed audio volume levels, it all happened in the same period. A voice from the factories Volume in many industries Create a risk of irreparable either critical ear. If the sound level is higher for prolonged because of career would make the deaf. The dangers of hearing much less have relations with the energy that the ear receives the simpler. The sound energy to reduce the risk of dangerous cumulative per hearing. Because of noise from industrial plants Change a lot. The criteria used for the escort. Consider the limits of average noise level and time of the hearing as defined for the volume of noise that is allowed to receive per day. If they are to withstand the higher volume, time must be reduced. Evaluation of trouble annoying From the industrial action. Use the audio levels from industrial point near a residential area and then compared with the existing volume. First, there was the voice from the factory. In the Office. In the Office, making communication and integrate complex words. This sound may be caused by, for example, printers, Office document boriphan or may be caused by external sounds, such as traffic and roads.Backgrounds volume Backgrounds volume volume statistical definition as the standard British BS 4142 LA90 which do not meet international standards organization standard ISO 1996 used LA95.In the discotheque In a discotheque at night. Most
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