maad.util.rms

maad.util.rms(s)[source]

Compute the root-mean-square (RMS) level of an input signal.

RMS is defined as the square root of the arithmetic mean of the square of a set of numbers [1]. The RMS is used to estimate de mean amplitude level of an audio signal or any alternative time series.

Parameters:

s1D array: Input signal to process

Returns:

rms: float: Root mean square of input signal

References

[1]

‘Root mean square’ (2010). Wikipedia. Available at https://en.wikipedia.org/wiki/Root_mean_square

Examples

>>> from maad import sound, util
>>> s, fs = sound.load('../data/spinetail.wav')
>>> rms_value = util.rms(s)