Program sfmultmask | Create a data mask using multiple muting curve from MRKE 
[SYNOPSIS]
sfmultmask < in.rsf mask=mask.rsf > out.rsf start=n smooth=n nw=0 shift=n verb=n
[PARAMETERS]
file    | mask | = |   | 	auxiliary input file name
int     | nw | =0 |   | 	smoothing window length must be odd
bool    | shift | =n |  [y/n] | 	shift 
bool    | smooth | =n |  [y/n] | 	smoothed mask [raised cosine] 
bool    | start | =n |  [y/n] | 	mask from starting sample to index value in mask 
bool    | verb | =n |  [y/n] | 	
[DIRECTORY]
user/lcasasan
