| convSPL {seewave} | R Documentation |
This function converts sound pressure level (in dB) in sound power (Watt), intensity (Watt/m2) and pressure (Pa). By default, these conversions are applied to air-borne sound.
convSPL(x, d = 1, Iref = 10^-12, pref = 2*10^-5)
x |
a numeric vector or a matrix describind SPL values (in dB). |
d |
the distance from the sound source where SPL values have been measured (in meter) (by default = 1m) |
Iref |
reference intensity (in Watt/m2) (by default = 10^-12) |
pref |
reference pressure (in Pa) (by default = 2*10^-5) |
convSPL returns a list containing three components:
P |
data converted in sound power (in Watt). |
I |
data converted in sound intensity (in Watt/m2). |
p |
data converted in sound pressure (in Pa). |
Iref and pref correspond to a 1 kHz sound in air.
Jerome Sueur sueur@mnhn.fr
Hartmann, W. M. 1998 Signals, sound and sensation. New York: Springer.
# conversion of two SPL measurements taken at 0.5 m from the source convSPL(c(80,85),d=0.5)