Decibel

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    (pronounced “de-si-bul”)
    1. A relative measurement based on a fixed value equating 0dB. (Ex: 0db SPL equals the threshold of hearing)
    2. A non-linear scale used to define differences in analog voltages, acoustic sound pressure, and amplifier wattage.
    3. A value based on 1/10th of a Bel (a measurement defined and named after Alexander Graham Bell). This is why the “B” is always capitalized “dB”.

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