maad.spl.pressure2leq

maad.spl.pressure2leq(p, fs, dt=1, pRef=2e-05)[source]

Convert pressure vector (p [Pa]) to Equivalent Continuous Sound Pressure level (Leq [dB SPL]).

Parameters:

pndarray-like: Array containing the sound pressure in Pa
fsinteger: Sampling frequency in Hz
dtfloat, optional, default is 1 (second): Integration step to compute the Leq (Equivalent Continuous Sound level)
pRefSound pressure reference in the medium (air:20e-6, water:1e-6 Pa)

Returns:

Leqfloat: Equivalent Continuous Sound pressure level (Leq [dB SPL])

Examples

>>> w, fs = maad.sound.load('../data/cold_forest_daylight.wav') 
>>> p = maad.spl.wav2pressure(wave=w, gain=42)
>>> Leq = maad.spl.pressure2leq (p, fs)
>>> maad.util.mean_dB(Leq)
    54.55488267086038