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Audio engineering · Recording

Root mean square

What is root mean square? A clear definition from the audio engineering and recording section of our glossary, with 12 related terms and further reading.

Definition of Root mean square

In mathematics, the root mean square (abbrev. RMS, rms or rms) of a set of values is the square root of the set's mean square.

{\displaystyle x_{i}}, its RMS is denoted as either

{\displaystyle x_{\mathrm {RMS} }}

Related terms

Frequently asked questions

What is Root mean square?

In mathematics, the root mean square (abbrev. RMS, rms or rms) of a set of values is the square root of the set's mean square.

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