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This function is the standard method of calculating the absorption of sound in air (ISO 9613-1).
absorptionAir(f, p, t, h, pr = 101.325, tr = 293.15, to = 273.16)
The sound attenuation rate in dB/m
The frequency of the sound source in Hz
The ambient atmospheric pressure in kPa
The ambient atmospheric temperature in C
The relative humidity as a percent
The standard pressure at mean sea level
The standard temperature in Celcius (293.15 in kelvin)
The triple-point isotherm temperature
#How much are Malayan tapir calls (15 kHz) absorbed in a tropical region #(30 deg C) assuming a humidity of 80% and standard pressure (101.325)? absorptionAir(15000, 101.325, 30, 80)
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