... files¹

SPHERE 2.6a is freely distributed by the American National Institute of Standards and Technologies (NIST) and can be found at URL http://www.nist.gov/speech/tools.

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... decoder²

As it comes to this, check out the madplay decoder if you're interesting in processing MPEG audio streams (http://www.mars.org/home/rob/proj/mpeg)

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... SIZE="-1">HTK³

Only work with HTK release 2.0 or greater. HTK output data type is OTHER and a frame rate of 10 ms is assumed.

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... SIZE="-1">spro.h⁴

Actually, reading the header file might prove more easy than reading this manual and I strongly recommend the reader to do so...

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... made⁵

Compatibility is only true for the runtimes and for the algorithms but not for the library since two function prototypes were changed in spro.h.

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... C⁶

See for example the following URL: http://cfatab.harvard.edu/nr/bookc.html

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