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2. Noise dosimeter - Wikipedia

   en.wikipedia.org/wiki/Noise_dosimeter

   Personal noise dosimeters. A noise dosimeter (American English) or noise dosemeter (British English) is a specialized sound level meter intended specifically to measure the noise exposure of a person integrated over a period of time; usually to comply with Health and Safety regulations such as the Occupational Safety and Health (OSHA) 29 CFR 1910.95 Occupational Noise Exposure Standard [1] or ...

3. Noise measurement - Wikipedia

   en.wikipedia.org/wiki/Noise_measurement

   Noise may be measured using a sound level meter at the source of the noise. [23] [24] [25] Alternatively, an organization or company may measure a person's exposure to environmental noise in a workplace via a noise dosimeter. [26] The measurements taken using either of these methods will be evaluated according to the standards below.

4. Noise-figure meter - Wikipedia

   en.wikipedia.org/wiki/Noise-figure_meter

   One way to perform the measurement is described on the Y-factor page. A noise-figure meter could automate that procedure as follows: A gated broadband noise source (such as an avalanche diode) drives the device under test.

5. NIOSH Power Tools Database - Wikipedia

   en.wikipedia.org/wiki/NIOSH_Power_Tools_Database

   Other online resources include the "Practical Guide," a noise meter showing the length of time when exposure to various everyday noises becomes hazardous, and employee training videos. [ 7 ] References

6. Acoustical measurements and instrumentation - Wikipedia

   en.wikipedia.org/wiki/Acoustical_measurements...

   Analysis of sound and acoustics plays a role in such engineering tasks as product design, production test, machine performance, and process control. For instance, product design can require modification of sound level or noise for compliance with standards from ANSI, IEC, and ISO. The work might also involve design fine-tuning to meet market ...

7. Sound level meter - Wikipedia

   en.wikipedia.org/wiki/Sound_level_meter

   A sound level meter (also called sound pressure level meter (SPL)) is used for acoustic measurements. It is commonly a hand-held instrument with a microphone. The best type of microphone for sound level meters is the condenser microphone, which combines precision with stability and reliability. [1]

8. Noise calculation - Wikipedia

   en.wikipedia.org/wiki/Noise_calculation

   Noise calculation is the process of calculating the level of noise immission using the metric dB(A). Noise immission is created by noise sources (noise emission) of various types which are propagating noise into the environment.

9. A-weighting - Wikipedia

   en.wikipedia.org/wiki/A-weighting

   A graph of the A-, B-, C- and D-weightings across the frequency range 10 Hz – 20 kHz Video illustrating A-weighting by analyzing a sine sweep (contains audio). A-weighting is a form of frequency weighting and the most commonly used of a family of curves defined in the International standard IEC 61672:2003 and various national standards relating to the measurement of sound pressure level. [1]