sphinx_pitch man page

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>

Info

2007-05-12