1SPHINX_PITCH(1)             General Commands Manual            SPHINX_PITCH(1)
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NAME

6       sphinx_pitch - Extract pitch from audio files
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SYNOPSIS

9       sphinx_pitch [ options ]...
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DESCRIPTION

12       This program reads audio files and analyzes them for pitch and voicing.
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14       -c     file for batch processing
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16       -di    directory, input file names are relative to this, if defined
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18       -do    directory, output files are relative to this
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20       -ei    extension to be applied to all input files
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22       -eo    extension to be applied to all output files
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24       -flen  Number  of  seconds  in each analysis frame (needs to be greater
25              than twice the longest period you wish to  detect  -  to  detect
26              down to 80Hz you need a frame length of 2.0/80 = 0.025).
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28       -fshift
29              Frame shift: number of seconds between each analysis frame.
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31       -i     audio input file
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33       -input_endian
34              of audio data (will be determined automatically if not given)
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36       -mswav Defines input format as Microsoft Wav (RIFF)
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38       -nist  Defines input format as NIST sphere
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40       -nskip If  a  control  file  was specified, the number of utterances to
41              skip at the head of the file
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43       -o     text output file (standard output will be used if not given)
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45       -raw   Defines input format as raw binary data
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47       -runlen
48              If a control file was specified, the  number  of  utterances  to
49              process (see -nskip too)
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51       -samprate
52              Sampling rate of audio data (will be determined automatically if
53              0)
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55       -search_range
56              Fraction of the best local estimate to use as a search range for
57              smoothing.
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59       -smooth_window
60              Number  of frames on either side of the current frame to use for
61              smoothing.
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63       -voice_thresh
64              Threshold of normalized difference under which to search for the
65              fundamental period.
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AUTHOR

68       David Huggins-Daines <dhuggins@cs.cmu.edu>
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71       Copyright © 2007-2008 Carnegie Mellon University.  See the file COPYING
72       included with this package for more information.
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76                                  2007-05-12                   SPHINX_PITCH(1)
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