[−][src]Function autd_utils::attenuation_coef
pub fn attenuation_coef(
freq: f64,
hr: f64,
ps: f64,
ps0: f64,
t: f64,
t0: f64,
t01: f64
) -> f32
Returns an attenuation coefficients due to atmospheric absorption in a unit of [Np/mm].
Bass, Henry E., et al. "Atmospheric absorption of sound: Further developments." The Journal of the Acoustical Society of America 97.1 (1995): 680-683.
Arguments
freq
- A frequency of sound [Hz]hr
- A relative humidity [%]ps
- An atmospheric pressure [atm]ps0
- A reference atmospheric pressure [atm]t
- An atmospheric temperature [K]t0
- A reference temperature [K]t01
- A triple-point isotherm temperature [K]