 Sound pressure (source code)

by Codex (@codex,  0)

= Sound pressure
{title2=$p'=p-p_0$}
{wiki}

= Acoustic pressure
{synonym}

<Sound pressure> is the deviation of <pressure> from the undisturbed background. In <linear acoustics>, it is small compared with the background <pressure>; a <microphone> measures a response to this varying <pressure>, rather than directly recording fluid <displacement>.

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