soundscapecode.rms_spl

soundscapecode.rms_spl(data: ndarray, fs: int, reference_sound_pressure: int = 1) → float

Calculates the root-mean-squared sound pressure level for sound data.

Parameters

data: np.ndarray

an array-like with shape (n, 1)

fs: int

the sampling frequency

reference_sound_pressure:int

p_0 in uPa, defaults to 1

Returns

float

the RMS SPL

Raises

AttributeError

if either data input is not a vector

Examples

>>> import numpy as np
>>> np.random.seed(0)
>>> import soundscapecode as ssc
>>> fs = 48000
>>> sound = np.random.rand(fs*60,1)
>>> ssc.rms_spl(sound, fs)
-4.770500024074682