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Technology for a Quieter America (2010) / Chapter Skim
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Appendix E: Modern Instrumentation for Environmental Noise Measurement
Pages 157-162

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From page 157...
... . Sound-level meters and related filter characteristics have been standardized by the American National Standards Institute and are also available through the Acoustical Society of America (http://asastore.aip.org/shop.do?
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From page 158...
... • all spectrum data stored at each reporting interval • spectral statistics stored at each reporting interval & Kjær. • logging time: from 1 second to 31 days with 1 second resolution or continuous • data are saved in separate projects for every 24 hours of logging • postprocessing that can create periodic statistical re ports down to 1 minute, including LN data NOISE MONITORINg SySTEMS • GPS support • sound recording The sound-level meter market can be divided into three • weather data monitoring levels.
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From page 159...
... MONITORINg DEMAND DRIVERS -- AIRPORT NOISE For airports, the major driver in the use of monitoring MONITORINg DEMAND DRIVERS -- uRBAN NOISE systems is to optimize profit or capacity. By carefully moni The drivers of the demand for monitoring systems have toring noise, airports can increase movements and hence been studied extensively by manufacturers, including Brüel profits by increasing the environmental capacity.
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From page 160...
... complaints and to demonstrate action to monitor and control noise levels. SuMMARy A large number of metrics are currently being used, MONITORINg MARKET SEgMENTATION ranging from A-weighted sound levels to day-evening-night One way to understand how this market is segmented is average sound pressure levels with various corrections.
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From page 161...
... -- American National Stanbe approached in a very different way from the way it was dard Quantities and Procedures for Description and Measurement done in the past when data collection, memory, and storage of Environmental Sound, Part 3: Short-Term Measurements with an capabilities were very limited. Observer In the competitive marketplace for sound-level meters and • ANSI S12.9-2005/Part 4 American National Standard Quantities and Procedures for Description and Measurement of Environmental monitoring systems, the same sort of capability is available Sound -- Part 4: Noise Assessment and Prediction of Long-Term from several vendors.
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Key Terms

  • american national
  • monitoring terminal
  • national standard
  • airport noise
  • environmental noise

  • key features
  • urban noise
  • noise level
  • monitoring software
  • level mapping

  • standards institute
  • noise levels
  • reporting interval
  • standard quantities
  • portable noise

  • computing power
  • outdoor noise
  • monitoring demand
  • community noise
  • microphone unit

  • software options
  • sound quality
  • aircraft noise
  • sound pressure
  • primary influence

  • noise directive
  • measuring sound
  • energy summations
  • ticated analysis
  • flight information


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