資源簡介
計算例聲音信號倍頻程和1/3倍頻的程子,并附有A計權修正的功能
代碼片段和文件信息
function?[Agoalalphaf]?=?fAweight(f)
%%?A-weight?coeficient?and?attenuation?at?frequency?f
%
%?Syntax
%???[Agoalalphaf]?=?fAweight(f)
%
%?Definitions
%???The?function?[Agoalalphaf]?=?fAweight(f)?implements?the?A-weight
%???fitting?formula?given?by:
%???alphaf?=?3.5041384e16*f^8/((20.598997^2+f^2)^2)*(107.65265^2+f^2)*(737.86223^2+f^2).*((12194.217^2+f^2)^2)
%???Agoal?=?10*log10(alphaf);
%
%?Description
%???[Agoalalphaf]?=?fAweiht(f)?implements?the?A-weight?fitting?formula?and
%???returns?the?A-weight?coefficient?and?attenuation?at?the?frequency?f.
%???The?input?variable?f?can?be?a?scalar?vector?or?matrix.
%???The?output?variables?Agoal?is?the?A-weight?attenuation?and?alhpaf?is
%???the?A-weight?coefficient.
%
%?Written?by?Liangliang?Fan?Shandong?University?Virtual?
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????3180??2014-05-19?21:31??foctave3.m
?????文件???????1348??2014-05-19?21:28??fAweight.m
-----------?---------??----------?-----??----
?????????????????4996????????????????????4
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