The recommendation comes at the back of research which found the ambient noise permissible limit at 70 dBA to be unrealistic. A-weighted decibels, or “ dBA,” are often used when describing sound level ...
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 ...
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 ...
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