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1. Acoustic Pressure

   Linked via "Root Mean Square (RMS) acoustic pressure"

   Root Mean Square (RMS) Pressure
   While instantaneous pressure is critical for understanding waveform distortion, the perceived loudness or intensity of a sound is generally correlated with the Root Mean Square (RMS) acoustic pressure-acoustic-pressure/). The RMS pressure ($p_{\text{rms}}$) is calculated over one period ($T$):
   $$ p{\text{rms}} = \sqrt{\frac{1}{T} \int{0}^{T} p(t)^2 \, dt} $$
   This value is crucial because sound energy transfer is proportional to the squ…