function?Fea?=?cmvn（fea?varnorm）
%?performs?cepstral?mean?and?variance?normalization
%
%?Inputs:
%???-?fea?????:?input?ndim?x?nobs?feature?matrix?where?nobs?is?the?
%				number?of?frames?and?ndim?is?the?feature?dimension
%???-?varnorm?:?binary?switch?（false|true）?if?true?variance?is?normalized?
%???????????????as?well
%?Outputs:
%???-?Fea?????:?output?p?x?n?normalized?feature?matrix.
%
%?Omid?Sadjadi?
%?Microsoft?Research?Conversational?Systems?Research?Center

if?（?nargin?==?1?）?varnorm?=?false;?end?
????
mu?=?mean（fea?2）;
if?varnorm
????stdev?=?std（fea?[]?2）;
else
????stdev?=?1;
end

Fea?=?bsxfun（@minus?fea?mu）;
Fea?=?bsxfun（@rdivide?Fea?stdev）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????720??2013-10-15?15:39??MSR?Identity?Toolkit?v1.0\code\cmvn.m

?????文件???????2963??2017-11-25?21:34??MSR?Identity?Toolkit?v1.0\code\compute_bw_stats.m

?????文件???????2963??2017-11-20?18:47??MSR?Identity?Toolkit?v1.0\code\compute_bw_stats_bak.m

?????文件???????3030??2013-10-15?15:39??MSR?Identity?Toolkit?v1.0\code\compute_eer.m

?????文件???????2077??2017-11-03?19:48??MSR?Identity?Toolkit?v1.0\code\demo_create_data.m

?????文件???????3254??2017-11-03?19:51??MSR?Identity?Toolkit?v1.0\code\demo_gmm_ubm.m

?????文件???????4339??2017-11-03?20:42??MSR?Identity?Toolkit?v1.0\code\demo_gmm_ubm_artificial.m

?????文件???????5370??2017-11-11?19:42??MSR?Identity?Toolkit?v1.0\code\demo_ivector_plda.m

?????文件???????5812??2013-10-15?15:40??MSR?Identity?Toolkit?v1.0\code\demo_ivector_plda_artificial.m

?????文件???????2421??2013-08-16?17:40??MSR?Identity?Toolkit?v1.0\code\extract_ivector.m

?????文件???????1557??2013-10-15?15:40??MSR?Identity?Toolkit?v1.0\code\fea_warping.m

?????文件???????6375??2017-11-25?21:29??MSR?Identity?Toolkit?v1.0\code\gmm_em.m

?????文件???????6148??2013-10-15?15:40??MSR?Identity?Toolkit?v1.0\code\gmm_em_bak.m

?????文件???????5108??2013-10-15?15:40??MSR?Identity?Toolkit?v1.0\code\gplda_em.m

?????文件????????223??2013-10-15?15:40??MSR?Identity?Toolkit?v1.0\code\hamming.m

?????文件????????656??2017-11-04?23:05??MSR?Identity?Toolkit?v1.0\code\htkread.m

?????文件????????607??2017-11-05?18:54??MSR?Identity?Toolkit?v1.0\code\htkread_bak.m

?????文件????????534??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\htkwrite.m

?????文件???????2068??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\lda.m

?????文件????????428??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\length_norm.m

?????文件???????4930??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\mapAdapt.m

?????文件????????498??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\rm_dc_n_dither.m

?????文件???????2567??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\score_gmm_trials.m

?????文件???????2118??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\score_gplda_trials.m

?????文件???????5639??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\train_tv_space.m

?????文件???????1856??2013-10-15?15:41??MSR?Identity?Toolkit?v1.0\code\wcmvn.m

?????文件????1082656??2013-10-11?10:39??MSR?Identity?Toolkit?v1.0\doc\MSR?Identity?Toolbox.docx

?????文件????1276208??2013-10-15?15:45??MSR?Identity?Toolkit?v1.0\doc\MSR?Identity?Toolbox.pdf

????..A..H.???????162??2013-08-28?03:13??MSR?Identity?Toolkit?v1.0\doc\~$entity?Toolbox-rev5.docx

????..A..H.???????162??2013-10-07?09:14??MSR?Identity?Toolkit?v1.0\doc\~$entity?Toolbox-rev6.docx

............此處省略45個文件信息