DBrnC

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The correct title of this article is dBrnC. The initial letter is shown capitalized due to technical restrictions.

dBrnC represents an audio level measurement, typically in a telephone circuit, relative to the level of circuit noise, with the measurement of this level frequency-weighted by a standard C-message weighting filter. The C-message weighting filter was cheifly used in North America. The Psophometric filter is used for this purpose on international circuits. See Psophometric Weighting to see a comparison of frequency response curves for the C-message weighting and Psophometric weighting filters.

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