%THRABS Absoute hearing threshold (Fletcher-Munson)
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% H. S. Malvar - Nov'00, (c) H. S. Malvar
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% Syntax: T = thrabs(f)
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% f = frequency, in Hz (or a vector of frequencies)
% T = corresponding absolute threshold of hearing, in dB SPL
function T=thrabs(f)
fk = f/1000;
% Approximation to the F&M curves
T = 3.64*(fk.^(-.8))-6.5*exp(-.6*(fk-3.3).^2)+1e-3*fk.^4;
e-REdING. Biblioteca de la Escuela Superior de Ingenieros de Sevilla.
