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  2. Noise curve - Wikipedia

    en.wikipedia.org/wiki/Noise_curve

    Noise curves are a common way to characterise background noise in unoccupied buildings and spaces. [1] Their purpose is to produce a single-value representation of a complete sound spectrum. International standards organizations ( ISO , [ 2 ] ANSI [ 3 ] and ASA ) recognize the need to objectify judgements on the amount of ambient noise in ...

  3. ITU-R 468 noise weighting - Wikipedia

    en.wikipedia.org/wiki/ITU-R_468_noise_weighting

    The human ear responds quite differently to clicks and bursts of random noise, and it is this difference that gave rise to the CCIR-468 weighting curve (now supported as an ITU standard), which together with quasi-peak measurement (rather than the rms measurement used with A-weighting) became widely used by broadcasters throughout Britain ...

  4. Eb/N0 - Wikipedia

    en.wikipedia.org/wiki/Eb/N0

    is closely related to the carrier-to-noise ratio (CNR or ), i.e. the signal-to-noise ratio (SNR) of the received signal, after the receiver filter but before detection:

  5. 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 ...

  6. Noise-predictive maximum-likelihood detection - Wikipedia

    en.wikipedia.org/wiki/Noise-predictive_maximum...

    The “noise predictive” concept was later extended to handle autoregressive (AR) noise processes and autoregressive moving-average (ARMA) stationary noise processes [2] The concept was extended to include a variety of non-stationary noise sources, such as head, transition jitter and media noise; [10] [11] [12] it was applied to various post ...

  7. 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 ...

  8. Specific detectivity - Wikipedia

    en.wikipedia.org/wiki/Specific_detectivity

    Specific detectivity is given by =, where is the area of the photosensitive region of the detector, is the bandwidth, and NEP the noise equivalent power in units [W]. It is commonly expressed in Jones units ( c m ⋅ H z / W {\displaystyle cm\cdot {\sqrt {Hz}}/W} ) in honor of Robert Clark Jones who originally defined it.

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