0002 dynes/cm 2. SPL may be measured with a SOUND LEVEL METER weighted according to a specific frequency response pattern and termed SOUND LEVEL. The electroacoustic equivalent to SPL is measured with ...
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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