A measure of the degree to which background noise interferes with or MASKs speech. It is obtained by averaging the SOUND PRESSURE LEVELs in the octave frequency bands centred on 500, 1000, 2000 and ...
His background is primarily in sports journalism ... has never gotten along with her 31-year-old SIL in the six years that they have known each other, according to her since-removed post on ...
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