sphinx_pitch(1)

NAME

sphinx_pitch - Extract pitch from audio files

sphinx_pitch [ options ]...

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.

David Huggins-Daines <dhuggins@cs.cmu.edu>

Copyright (C) 2007-2008 Carnegie Mellon University. See the file COPYING included with this package for more information.