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2. Sound level meter - Wikipedia

   en.wikipedia.org/wiki/Sound_level_meter

   A noise dosimeter (American) or noise dosemeter (British) 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 ...

3. Peak programme meter - Wikipedia

   en.wikipedia.org/wiki/Peak_programme_meter

   A peak programme meter (PPM) is an instrument used in professional audio that indicates the level of an audio signal. Different kinds of PPM fall into broad categories: True peak programme meter. This shows the peak level of the waveform no matter how brief its duration. Quasi peak programme meter (QPPM). This only shows the true level of the ...

4. The Best Decibel Meter Apps In 2024 - AOL

   www.aol.com/best-decibel-meter-apps-2024...

   Our favorite decibel apps include: Decibel Pro, Decibel X, NIOSH SLM app (for iPhone), and Sound Meter & Noise Detector (for Android) Apple products allow passive alerts to help prevent exceeding ...

5. dBm - Wikipedia

   en.wikipedia.org/wiki/DBm

   dBm or dB mW (decibel-milliwatts) is a unit of power level expressed using a logarithmic decibel (dB) scale respective to one milliwatt (mW). It is commonly used by radio, microwave and fiber-optical communication technicians & engineers to measure the power of system transmissions on a log scale , which can express both very large and very ...

6. dbx (company) - Wikipedia

   en.wikipedia.org/wiki/Dbx_(company)

   Another early product was the eXpanded range DeciBel meter, a little solid-state meter that measured audio voltages both weaker and stronger than other bigger contemporary volume meters, built into an aluminum extrusion that was about the size of the meter itself, which was an earlier source of the company initials.

7. 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]