NAME
sphinx_pitch - Extract pitch from audio files
SYNOPSIS
sphinx_pitch [ options ]...
DESCRIPTION
This program reads audio files and analyzes them for pitch and voicing.
-c file for batch processing
-di directory, input file names are relative to this, if defined
-do directory, output files are relative to this
-ei extension to be applied to all input files
-eo extension to be applied to all output files
-flen Number of seconds in each analysis frame (needs to be greater
than twice the longest period you wish to detect - to detect
down to 80Hz you need a frame length of 2.0/80 = 0.025).
-fshift
Frame shift: number of seconds between each analysis frame.
-i audio input file
-input_endian
of audio data (will be determined automatically if not given)
-mswav Defines input format as Microsoft Wav (RIFF)
-nist Defines input format as NIST sphere
-nskip If a control file was specified, the number of utterances to
skip at the head of the file
-o text output file (standard output will be used if not given)
-raw Defines input format as raw binary data
-runlen
If a control file was specified, the number of utterances to
process (see -nskip too)
-samprate
Sampling rate of audio data (will be determined automatically if
0)
-search_range
Fraction of the best local estimate to use as a search range for
smoothing.
-smooth_window
Number of frames on either side of the current frame to use for
smoothing.
-voice_thresh
Threshold of normalized difference under which to search for the
fundamental period.
AUTHOR
David Huggins-Daines <dhuggins@cs.cmu.edu>
COPYRIGHT
Copyright © 2007-2008 Carnegie Mellon University. See the file COPYING
included with this package for more information.
2007-05-12