Noise and Music
 In technical terms, any intolerable and irritating sound is called noise. In fact, the word ’noise‘, comes from the Latin word nausea meaning ‘seasickness’, referring originally to nuisance noise. On the other hand, the term ‘music’ refers to any sound that one likes to listen to.  All undesirable sounds and disturbances around us cause noise pollution. Noise pollution can also affect our health adversely. Exposure to excessive noise leads to health disorders like high blood pressure, panic attacks and lack of sleep. If we are continuously subjected to loud noise, you may end up with a temporary or even permanent hearing impairment. Noise pollution has effects on the environment too. Military activities, oil drilling, fishing and the movement of large ships cause a lot of disturbance in oceans. Studies have found that marine mammals like whales and dolphins are very sensitive to this noise. In fact, noise pollution causes deafness in marine creatures!  There are many ways of dealing with the effects of noise pollution, and hearing impairment in general. The sign language is used by the hearing disabled people to communicate. This language uses fingers to spell out words or communicate different phrases. There is a sign language alphabet and even a sign language dictionary!  Noise pollution is not totally responsible for all hearing problems. People suffering with total hearing impairment are usually born with it. Most hearing impaired people suffer from partial hearing-disability. Children who are born hearing impaired need special care as they find it difficult to communicate. They may also suffer from defective speech. Apart from the use of sign language, different technological devices like hearing aids help the hearing impaired lead normal lives. Minimising noise pollution Install silencer devices in aircraft engines, vehicles, industrial machines and other appliances Plant trees along roads and in residential areas Do not set up factories in residential areas Do not blow horns near schools, hospitals and residential areas and Do not play TVs and music systems at high volumes Governments across the globe have been taking measures for noise prevention. Different countries have been following a variety of strategies to reduce noise pollution on roads and highways. These include: Use of noise barriers Regulation of the speeds of vehicles Maintenance of the road surface since uneven roads cause vehicles to vibrate Limiting heavy vehicles, which cause the greatest amount of noise pollution Use of traffic controls to reduce braking and acceleration and Improvements in tyre design so that tyres produce less noise while driving. The supreme court in India had framed specific laws to restrict noise pollution. One of the laws says: No one shall beat a drum or tom-tom or blow a trumpet or beat or sound any instrument or use any sound amplifier at night (between 10. 00 p.m. and 6.a.m.) except in public emergencies. Furthermore, the area of at least 100 metres around hospitals, educational institutions and courts are declared to be silent zones. Breaking these laws is generally punishable with an imprisonment and or a fine. Citizens should take action in that case and lodge a complaint. For instance, you can lodge a complaint against the misuse of loudspeakers to the Police Control Room or Concerned Police Stations.

#### Summary

 In technical terms, any intolerable and irritating sound is called noise. In fact, the word ’noise‘, comes from the Latin word nausea meaning ‘seasickness’, referring originally to nuisance noise. On the other hand, the term ‘music’ refers to any sound that one likes to listen to.  All undesirable sounds and disturbances around us cause noise pollution. Noise pollution can also affect our health adversely. Exposure to excessive noise leads to health disorders like high blood pressure, panic attacks and lack of sleep. If we are continuously subjected to loud noise, you may end up with a temporary or even permanent hearing impairment. Noise pollution has effects on the environment too. Military activities, oil drilling, fishing and the movement of large ships cause a lot of disturbance in oceans. Studies have found that marine mammals like whales and dolphins are very sensitive to this noise. In fact, noise pollution causes deafness in marine creatures!  There are many ways of dealing with the effects of noise pollution, and hearing impairment in general. The sign language is used by the hearing disabled people to communicate. This language uses fingers to spell out words or communicate different phrases. There is a sign language alphabet and even a sign language dictionary!  Noise pollution is not totally responsible for all hearing problems. People suffering with total hearing impairment are usually born with it. Most hearing impaired people suffer from partial hearing-disability. Children who are born hearing impaired need special care as they find it difficult to communicate. They may also suffer from defective speech. Apart from the use of sign language, different technological devices like hearing aids help the hearing impaired lead normal lives. Minimising noise pollution Install silencer devices in aircraft engines, vehicles, industrial machines and other appliances Plant trees along roads and in residential areas Do not set up factories in residential areas Do not blow horns near schools, hospitals and residential areas and Do not play TVs and music systems at high volumes Governments across the globe have been taking measures for noise prevention. Different countries have been following a variety of strategies to reduce noise pollution on roads and highways. These include: Use of noise barriers Regulation of the speeds of vehicles Maintenance of the road surface since uneven roads cause vehicles to vibrate Limiting heavy vehicles, which cause the greatest amount of noise pollution Use of traffic controls to reduce braking and acceleration and Improvements in tyre design so that tyres produce less noise while driving. The supreme court in India had framed specific laws to restrict noise pollution. One of the laws says: No one shall beat a drum or tom-tom or blow a trumpet or beat or sound any instrument or use any sound amplifier at night (between 10. 00 p.m. and 6.a.m.) except in public emergencies. Furthermore, the area of at least 100 metres around hospitals, educational institutions and courts are declared to be silent zones. Breaking these laws is generally punishable with an imprisonment and or a fine. Citizens should take action in that case and lodge a complaint. For instance, you can lodge a complaint against the misuse of loudspeakers to the Police Control Room or Concerned Police Stations.

#### Activities

 Activity 1 Edu.fi has created an interactive quiz which gives sounds of different loudness and one is supposed to drag the text describing the noise next to the sound. Interesting! Go to Activity Activity 2 Wales.gov has developed an interactive online activity to test the observative skills. Using it we can  compare the properties of two sound given. Go to Activity

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