function?[xmnmx]=melbankm（pnfsflfhw）??
%MELBANKM?determine?matrix?for?a?mel-spaced?filterbank?[XMNMX]=（PNFSFLFHW）??
%??
%?Inputs:???p???number?of?filters?in?filterbank??
%???????n???length?of?fft??
%???????fs??sample?rate?in?Hz??
%???????fl??low?end?of?the?lowest?filter?as?a?fraction?of?fs?（default?=?0）??
%???????fh??high?end?of?highest?filter?as?a?fraction?of?fs?（default?=?0.5）??
%???????w???any?sensible?combination?of?the?following:??
%?????????????‘t‘??triangular?shaped?filters?in?mel?domain?（default）??
%?????????????‘n‘??hanning?shaped?filters?in?mel?domain??
%?????????????‘m‘??hamming?shaped?filters?in?mel?domain??
%??
%?????????????‘z‘??highest?and?lowest?filters?taper?down?to?zero?（default）??
%?????????????‘y‘??lowest?filter?remains?at?1?down?to?0?frequency?and??
%??????????????highest?filter?remains?at?1?up?to?nyquist?freqency??
%??
%??????????????If?‘ty‘?or?‘ny‘?is?specified?the?total?power?in?the?fft?is?preserved.??
%??
%?Outputs:??x?????a?sparse?matrix?containing?the?filterbank?amplitudes??
%?????????????If?x?is?the?only?output?argument?then?size（x）=[p1+floor（n/2）]??
%?????????????otherwise?size（x）=[pmx-mn+1]??
%???????mn???the?lowest?fft?bin?with?a?non-zero?coefficient??
%???????mx???the?highest?fft?bin?with?a?non-zero?coefficient??
%??
%?Usage:????f=fft（s）;???????????f=fft（s）;??
%???????x=melbankm（pnfs）;?????[xnanb]=melbankm（pnfs）;??
%???????n2=1+floor（n/2）;????????z=log（x*（f（na:nb））.*conj（f（na:nb）））;??
%???????z=log（x*abs（f（1:n2））.^2）;??
%???????c=dct（z）;?c（1）=[];??
%??
%?To?plot?filterbanks?e.g.??plot（melbankm（202568000）‘）??
%??
??
??
%??????Copyright?（C）?Mike?Brookes?1997??
%??
%??????Last?modified?Tue?May?12?16:15:28?1998??
%??
%???VOICEBOX?home?page:?http://www.ee.ic.ac.uk/hp/staff/dmb/voicebox/voicebox.html??
%??
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