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  2. The Best Decibel Meter Apps In 2024 - AOL

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

    Decibel meters are essential for monitoring sound levels in any environment to protect our hearing health from excessive noise exposure. Fortunately, several free apps on smartphones allow quick ...

  3. 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 ]

  4. 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 ...

  5. Sound pressure - Wikipedia

    en.wikipedia.org/wiki/Sound_pressure

    The main instrument for measuring sound levels in the environment is the sound level meter. Most sound level meters provide readings in A, C, and Z-weighted decibels and must meet international standards such as IEC 61672-2013 .

  6. Peak meter - Wikipedia

    en.wikipedia.org/wiki/Peak_meter

    A peak meter is a type of measuring instrument that visually indicates the instantaneous level of an audio signal that is passing through it (a sound level meter). In sound reproduction, the meter, whether peak or not, is usually meant to correspond to the perceived loudness of a particular signal. The term peak is used to denote the meter's ...

  7. 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 ...

  8. Acoustic Doppler current profiler - Wikipedia

    en.wikipedia.org/wiki/Acoustic_Doppler_Current...

    A temperature sensor is used to estimate the sound velocity at the instrument position using the seawater equation of state, and uses this to estimate scale the frequency shift to water velocities. This procedure assumes that the salinity has a preconfigured constant value. Finally, the results are saved to internal memory or output online to ...

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