Knowledge (XXG)

Noise measurement

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44:, the sound, whether it is wanted or unwanted, may be damaging to hearing. Environmental noise monitoring is the measurement of noise in an outdoor environment caused by transport (e.g. motor vehicles, aircraft, and trains), industry (e.g. machines) and recreational activities (e.g. music). The laws and limits governing environmental noise monitoring differ from country to country. 102:, limitation of vehicle speeds, alteration of roadway surface texture, limitation of heavy vehicles, use of traffic controls that smooth vehicle flow to reduce braking and acceleration, and tire design. Aircraft noise can be reduced by using quieter jet engines, altering flight paths and considering the time of day to benefit residents near airports. 907: 136:. In audio systems and broadcasting, specific methods are used to obtain subjectively valid results in order that different devices and signal paths may be compared regardless of the inconsistent spectral distribution and temporal properties of the noise that they generate. In particular, the 614:; Blangiardo, Marta; Fortunato, Lea; Floud, Sarah; Hoogh, Kees de; Fecht, Daniela; Ghosh, Rebecca E.; Laszlo, Helga E.; Pearson, Clare; Beale, Linda; Beevers, Sean (2013-10-08). 980: 47:
At the very least, noise may be annoying or displeasing or may disrupt the activity or balance of human or animal life, increasing levels of aggression,
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at the source of the noise. Alternatively, an organization or company may measure a person's exposure to environmental noise in a workplace via a
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Chang, Ta-Yuan; Hwang, Bing-Fang; Liu, Chiu-Shong; Chen, Ren-Yin; Wang, Ven-Shing; Bao, Bo-Ying; Lai, Jim-Shoung (2013-04-15).
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and stress. In the extreme, excessive levels or periods of noise can have long-term negative health effects such as
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is addressed by redesign of industrial equipment, shock mounted assemblies and physical barriers in the workplace.
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was devised specifically for this purpose and is widely used for professional audio and broadcast measurements.
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There are a number of standards for noise measurement, each with a different goal or focus, including:
40:. One of the definitions of noise covers all "unwanted sounds". When sound levels reach a high enough 834: 1684: 1201: 673:"Environmental Noise Pollution in the United States: Developing an Effective Public Health Response" 327: 1444: 1439: 1257: 1160: 95: 41: 25: 1847: 1500: 1390: 653: 496: 356: 228: 133: 103: 1714: 1709: 1505: 1329: 1226: 1191: 815: 807: 761: 702: 645: 637: 545: 537: 488: 470: 348: 340: 215: 196: 110: 80: 1005: 616:"Aircraft noise and cardiovascular disease near Heathrow airport in London: small area study" 1807: 1780: 1334: 1267: 1231: 799: 753: 692: 684: 627: 527: 478: 460: 332: 268: 72: 68: 28:
or measuring noise in the workplace. Applications include monitoring of construction sites,
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Goines, Lisa; Hagler, Louis (March 2007). "Noise Pollution: A Modern Plague".
884:"Reducing Excessive Noise Using Engineering Methods | Atlantic Environmental" 811: 721:"Review of noise impacts on marine mammals yields new policy recommendations" 641: 541: 474: 344: 1689: 615: 288: 114: 17: 819: 787: 706: 649: 549: 492: 352: 1136:
Noise-Planet: app to make an open source noise map of environmental noise
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Hammer Monica S.; Swinburn Tracy K.; Neitzel Richard L. (2014-02-01).
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Salvi, Richard; Boettcher, Flint A. (2008), Conn, P. Michael (ed.),
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Essays, Research Papers and Articles on Environmental Pollution
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Current Opinion in Otolaryngology & Head and Neck Surgery
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widely used in Broadcasting and professional Audio.
981:"How to Control Aircraft Noise? | Noise Pollution" 161:is widely used in Environmental Noise measurement. 1109:"The Use of Noise Dosimeters in the Workplace -" 752:, Totowa, NJ: Humana Press, pp. 289–301, 94:Various interventions are available to combat 1161: 746:"Animal Models of Noise-Induced Hearing Loss" 98:. Roadway noise can be reduced by the use of 8: 750:Sourcebook of Models for Biomedical Research 1006:"Controls for Noise Exposure | NIOSH | CDC" 128:can also be part of a test procedure using 1729: 1168: 1154: 1146: 1035:It's a Noisy Planet. Protect Their Hearing 788:"Noise-induced hearing loss: perspectives" 205:supersedes BS 5969:1981 Sound level meters 696: 631: 531: 482: 464: 326: 189:specifies Personal sound exposure meters. 1141:Koopen: Indoor Noise Measurement Dataset 1644:Signal-to-interference-plus-noise ratio 280: 1460:Equivalent pulse code modulation noise 1060:"How decibel sound level meters work" 7: 1583:(energy per symbol to noise density) 588:"Open Office Noise Increases Stress" 564:"Open Office Noise Increases Stress" 132:, or some other specialized form of 24:can be for the purpose of measuring 888:Atlantic Environmental Incorporated 835:"How much does noise barrier cost?" 1654:Signal-to-quantization-noise ratio 165:Standard:CCIR recommendation 468-4 14: 1568:(energy per bit to noise density) 1536:Carrier-to-receiver noise density 1450:Effective input noise temperature 1107:Selwyn, Bob (September 1, 2010). 677:Environmental Health Perspectives 167:is now maintained as ITU-R BS 468 1179:(physics and telecommunications) 1113:Occupational Health & Safety 1084:"Sound-level meter | instrument" 520:American Journal of Epidemiology 375:"CAOHC Noise Measurement Course" 83:, and contributing to permanent 75:, and an increased incidence of 1791:Block-matching and 3D filtering 1639:Signal-to-noise ratio (imaging) 1490:Noise, vibration, and harshness 447:Halperin, Demian (2014-12-01). 1858:Occupational safety and health 121:Audio Systems and Broadcasting 109:Noise may be measured using a 1: 1324:Additive white Gaussian noise 833:Barrier, Hatko (2020-04-20). 293:"Unattended Noise Monitoring" 183:is now continued as CCITT0.41 177:' used on telephone circuits. 1700:Interference (communication) 1607:Signal-to-interference ratio 1597:Signal, noise and distortion 804:10.1097/MOO.0000000000000084 758:10.1007/978-1-59745-285-4_32 337:10.1097/smj.0b013e3180318be5 1455:Equivalent noise resistance 931:Potter, Sean (2018-06-25). 466:10.1016/j.slsci.2014.11.003 36:, entertainment venues and 1874: 1750:Total variation denoising 882:atlanticei (2019-03-20). 224:Audio system measurements 138:ITU-R 468 noise weighting 1031:"How is Sound Measured?" 786:Diaz, Rodney C. (2014). 315:Southern Medical Journal 199:for motor vehicle noise. 159:Standard:IEC A-weighting 1664:Contrast-to-noise ratio 1088:Encyclopedia Britannica 77:coronary artery disease 1587:Modulation error ratio 1522:Carrier-to-noise ratio 1485:Noise spectral density 254:Equal-loudness contour 175:Psophometric weighting 1802:Denoising autoencoder 1776:Anisotropic diffusion 1621:Signal-to-noise ratio 1465:Impulse noise (audio) 1380:Johnson–Nyquist noise 1268:Government regulation 912:www.southampton.ac.uk 234:Noise (environmental) 193:Standard:BS 3539:1968 187:Standard:BS 6402:1983 153:Standard:ITU-R BS 468 1685:List of noise topics 1445:Circuit noise level 1440:Channel noise level 839:Hatko Sound Barrier 689:10.1289/ehp.1307272 216:Sound power level L 203:Standard:BSEN 60651 171:Standard:CCITT 0.41 96:environmental noise 26:environmental noise 1843:Sound measurements 1501:Pseudorandom noise 1391:Quantization error 1202:Noise cancellation 1064:Explain that Stuff 533:10.1093/aje/kws300 229:Rumble measurement 197:Sound level meters 181:Standard:CCITT P53 61:sleep disturbances 38:neighborhood noise 34:road traffic noise 1820: 1819: 1816: 1815: 1755:Wavelet denoising 1715:Thermal radiation 1710:Spectrum analyzer 1506:Statistical noise 1330:Atmospheric noise 1227:Noise temperature 1212:Noise measurement 1192:Acoustic quieting 1037:. 28 January 2019 961:www.volpe.dot.gov 767:978-1-59745-285-4 633:10.1136/bmj.f5432 300:www.nti-audio.com 126:Noise measurement 111:sound level meter 67:, an increase in 22:noise measurement 1865: 1808:Deep Image Prior 1797:Shrinkage Fields 1781:Bilateral filter 1730: 1335:Background noise 1232:Phase distortion 1170: 1163: 1156: 1147: 1123: 1122: 1120: 1119: 1104: 1098: 1097: 1095: 1094: 1080: 1074: 1073: 1071: 1070: 1052: 1046: 1045: 1043: 1042: 1027: 1021: 1020: 1018: 1017: 1002: 996: 995: 993: 992: 977: 971: 970: 968: 967: 953: 947: 946: 944: 943: 928: 922: 921: 919: 918: 904: 898: 897: 895: 894: 879: 873: 872: 870: 869: 855: 849: 848: 846: 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Index

acoustics
environmental noise
aircraft noise
road traffic noise
neighborhood noise
intensity
hypertension
hearing loss
tinnitus
sleep disturbances
blood pressure
stress
vasoconstriction
coronary artery disease
navigation
tinnitus
hearing loss
environmental noise
noise barriers
Industrial noise
sound level meter
noise dosimeter
white noise
test signal
ITU-R 468 noise weighting
Standard:ITU-R BS 468
Standard:IEC A-weighting
Standard:CCIR recommendation 468-4
Standard:CCITT 0.41
Psophometric weighting

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