Soundproofing
Soundproofing glossary definition of simple harmonic quantity
simple harmonic quantity :
Periodic quantity that is a sinusoidal function of the independent variable. Thus y = A sin({omega}t + {phi}), where y is the simple harmonic quantity, A is the amplitude, {omega} is the angular frequency, and {phi} is the phase of the oscillation. The maximum value of a simple harmonic quantity is amplitude A.
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