WAYS TO WEIGH NOISE OUTDOORS

THE ANALOG RECORDED MICRO-SAMPLING PROCEDURE IS A WAY OF DEALING WITH THE FACT THAT ENVIRONMENTAL NOISE LEVEL FLUCTUATIONS ARE NOT, WITHIN THE USUAL TIME SPAN OF OBSERVATION AND ANALYSIS, A TRULY RANDOM PROCESS. WITH A FEW MODIFICATIONS AND ADDITIONS THE SONY TC-40 COMES CLOSE TO THE SPECIFICATIONS FOR AN INEXPENSIVE, RELIABLE FIELD DATA RECORDER. IN OPERATION, ONE MIGHT CHOOSE A MICRO-SAMPLE DURATION TIME OF ONE HALF SECOND REPEATED FOUR TIMES PER MINUTE, OR FOUR SECONDS DURATION REPEATED EVERY TWO MINUTES. IN EITHER MODE THE RECORDER COULD BE OPERATED UNATTENDED FOR 24 HOURS. THE MOST SIGNIFICANT RECENT ADVANCE IN THE MICRO-SAMPLING TECHNIQUE HAS BEEN IN THE DEVELOPMENT OF A DATA ANALYSIS SYSTEM. /AUTHOR/

• Corporate Authors:

  Noise Control Engineering

  ,    
• Authors:
  • Kamperman, G W
• Publication Date: 1973-6

Media Info

• Pagination: p. 40-5
• Serial:
  • Volume: 1
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Data recorders; Information processing; Measuring instruments; Microanalysis; Sound level
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00224561
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 11 1974 12:00AM