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Science > Acoustics 
attenuation coefficient
Science; Acoustics
Real part of the linear exponent of sound propagation. Note: the unit is the neper per meter.
damage risk criteria
Science; Acoustics
Recommended maximum noise levels for given exposure periods.
active noise control
Science; Acoustics
Reducing unwanted sound electronically. When a sound wave of equal amplitude but opposite sign (180 degree out of phase) is added to the original sound the result is sound ...
sound spectrum
Science; Acoustics
Representation of the magnitudes (and sometimes of the phases) of the components of a complex sound as a function of frequency.
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