function?[levaffsovad]=activlev（spfsmode）
%ACTIVLEV?Measure?active?speech?level?as?in?ITU-T?P.56?[LEVAFFSO]=（spFSMODE）
%
%Usage:?（1）?lev=activlev（sfs）;?????%?speech?level?in?units?of?power
%???????（2）?db=activlev（sfs‘d‘）;??%?speech?level?in?dB
%???????（3）?s=activlev（sfs‘n‘）;???%?normalize?active?level?to?0?dB
%
%Inputs:?sp?????is?the?speech?signal?（with?better?than?20dB?SNR）
%????????FS?????is?the?sample?frequency?in?Hz?（see?also?FSO?below）
%????????MODE???is?a?combination?of?the?following:
%???????????????0?-?omit?high?pass?filter?completely?（i.e.?include?DC）
%???????????????3?-?high?pass?filter?at?30?Hz?instead?of?200?Hz?（but?allows?mains?hum?to?pass）
%???????????????4?-?high?pass?filter?at?40?Hz?instead?of?200?Hz?（but?allows?mains?hum?to?pass）
%???????????????1?-?use?cheybyshev?1?filter
%???????????????2?-?use?chebyshev?2?filter?（default）
%???????????????e?-?use?elliptic?filter
%???????????????h?-?omit?low?pass?filter?at?5.5?12?or?18?kHz
%???????????????w?-?use?wideband?filter?frequencies:?70?Hz?to?12?kHz
%???????????????W?-?use?ultra?wideband?filter?frequencies:?30?Hz?to?18?kHz
%???????????????d?-?give?outputs?in?dB?rather?than?power
%???????????????n?-?output?a?normalized?speech?signal?as?the?first?argument
%???????????????N?-?output?a?normalized?filtered?speech?signal?as?the?first?argument
%???????????????l?-?give?both?active?and?long-term?power?levels
%???????????????a?-?include?A-weighting?filter
%???????????????i?-?include?ITU-R-BS.468/ITU-T-J.16?weighting?filter
%???????????????z?-?do?NOT?zero-pad?the?signal?by?0.35?s
%
%Outputs:
%????If?the?“n“?option?is?specified?a?speech?signal?normalized?to?0dB?will?be?given?as
%????the?first?output?followed?by?the?other?outputs.
%????????LEV????gives?the?speech?level?in?units?of?power?（or?dB?if?mode=‘d‘）
%???????????????if?mode=‘l‘?is?specified?LEV?is?a?row?vector?with?the?“l(fā)ong?term
%???????????????level“?as?its?second?element?（this?is?just?the?mean?power）
%????????AF?????is?the?activity?factor?（or?duty?cycle）?in?the?range?0?to?1
%????????FSO????is?a?column?vector?of?intermediate?information?that?allows
%???????????????you?to?process?a?speech?signal?in?chunks.?Thus:
%???????????????????????fso=fs;
%???????????????????????for?i=1:inc:nsamp
%???????????????????????????[levaffso]=activlev（sp（i:min（i+inc-1nsamp））fso[‘z‘?mode]）;
%???????????????????????end
%???????????????????????lev=activlev（[]fso）
%???????????????is?equivalent?to:
%???????????????????????lev=activlev（sp（1:nsamp）fsmode）
%???????????????but?is?much?slower.?The?two?methods?will?not?give?identical?results
%???????????????because?they?will?use?slightly?different?thresholds.?Note?you?need
%???????????????the?‘z‘?option?for?all?calls?except?the?last.
%????????VAD????is?a?boolean?vector?the?same?length?as?sp?that?acts?as?an?approximate?voice?activity?detector

%For?completeness?we?list?here?the?contents?of?the?FSO?structure:
%
%???ffs?:?sample?frequency
%???fmd?:?mod

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????16679??2017-02-07?21:25??voicebox\activlev.m

?????文件???????8389??2014-08-06?02:25??voicebox\activlevg.m

?????文件???????1793??2014-01-16?15:43??voicebox\atan2sc.m

?????文件???????2112??2014-01-16?15:43??voicebox\axisenlarge.m

?????文件???????4728??2014-04-25?14:51??voicebox\bark2frq.m

?????文件???????1705??2014-04-25?14:51??voicebox\berk2prob.m

?????文件???????3305??2014-01-16?15:43??voicebox\bitsprec.m

?????文件???????2469??2014-01-16?15:43??voicebox\cblabel.m

?????文件???????2013??2014-01-16?15:43??voicebox\ccwarpf.m

?????文件???????2046??2014-01-16?15:43??voicebox\cent2frq.m

?????文件???????2131??2014-01-16?15:43??voicebox\cep2pow.m

?????文件???????2239??2014-01-16?15:43??voicebox\choosenk.m

?????文件???????1603??2014-01-16?15:43??voicebox\choosrnk.m

?????文件??????14643??2017-04-04?22:30??voicebox\Contents.m

?????文件???????3975??2014-01-16?15:43??voicebox\correlogram.m

?????文件???????3819??2014-01-16?15:43??voicebox\distchar.m

?????文件???????3422??2014-01-16?15:43??voicebox\distchpf.m

?????文件???????3688??2014-01-16?15:43??voicebox\disteusq.m

?????文件???????4641??2014-01-16?15:43??voicebox\distisar.m

?????文件???????3736??2014-01-16?15:43??voicebox\distispf.m

?????文件???????4170??2014-01-16?15:43??voicebox\distitar.m

?????文件???????3601??2014-01-16?15:43??voicebox\distitpf.m

?????文件???????1982??2014-01-16?15:43??voicebox\ditherq.m

?????文件???????2756??2016-01-07?02:13??voicebox\dlyapsq.m

?????文件???????3479??2014-01-16?15:43??voicebox\dualdiag.m

?????文件??????26494??2014-01-16?15:43??voicebox\dypsa.m

?????文件???????6637??2017-03-08?17:38??voicebox\enframe.m

?????文件???????3906??2014-01-16?15:43??voicebox\entropy.m

?????文件???????3430??2015-03-02?00:02??voicebox\erb2frq.m

?????文件???????7306??2014-01-16?15:43??voicebox\estnoiseg.m

............此處省略236個(gè)文件信息