[MacPorts] #20354: libxtract-0.4.7 Contribution

[MacPorts]

#20354: libxtract-0.4.7 Contribution
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 Reporter:  info@…                   |       Owner:  macports-tickets@…                   
     Type:  submission               |      Status:  new                                  
 Priority:  Normal                   |   Milestone:                                       
Component:  ports                    |     Version:  1.7.1                                
 Keywords:                           |        Port:                                       
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 LibXtract is a simple, portable, lightweight library of audio feature
 extraction functions. The purpose of the library is to provide a
 relatively exhaustive set of feature extraction primatives that are
 designed to be 'cascaded' to create a extraction hierarchies. For example,
 'variance', 'average deviation', 'skewness' and 'kurtosis', all require
 the 'mean' of the input vector to be precomputed. However, rather than
 compute the 'mean' 'inside' each function, it is expected that the 'mean'
 will be passed in as an argument. This means that if the user wishes to
 use all of these features, the mean is calculated only once, and then
 passed to any functions that require it.

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Ticket URL: <http://trac.macports.org/ticket/20354>
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