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aubiopitch

NAME

aubiopitch --- a command line tool to extract pitch candidates from sound files.

SYNOPSIS

aubiopitch [options] -i soundfile

DESCRIPTION

aubiopitch attempts to extract fundamental frequency in sound files. When no pitch candidate is found, the output is 0. Five fundamental frequency extraction methods are available. Results can be printed in Hertz or in MIDI pitch.

A plotting module is available via the Gnuplot Python package.

OPTIONS

This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below.

-i --input filein

input sound file

-m --mode pitch_detection_mode

pitch detection mode [default=mcomb] mcomb|yin|fcomb|schmitt

-u --units unitmode

output pitch in units [default=Hz] freq|midi|cent|bin

-B --bufsize=BUFSIZE

buffer size [default=1024]

-H --hopsize=HOPSIZE

overlap size [default=512]

-t --threshold=THRESHOLD

pitch threshold (for yin) [default=0.1]

-s --silence=SILENCE

silence threshold [default=-70]

-D --delay=DELAY

number of seconds to take back [default=0]

-S --smoothing=frames

temporal smoothing using a median filter of N frames [default=0]

-M --pitchmax=max

maximum pitch values to look for (Hz) [default=20000]

-l --pitchmin=min

minimum pitch values to look for (Hz) [default=20]

-n --note

NOT IMPLEMENTED output notes

-q --quiet

be quiet

-h --help

Show a summary of options.

-v --verbose

make lots of noise [default]

Plotting options

When the Python interface to Gnuplot is installed, the following additional options are available.

-p --plot

draw plot of the pitch track

-T --plottruth

draw plot of the ground truth pitch track

-x --xsize=SIZE

define horizontal plot size [default=1.]

-y --ysize=SIZE

define vertical plot size [default=1.]

-O --outplot=OUTPLOT

save plot to output.{ps,eps,png,svg} instead of displaying it

BUGS

For now the program has only been tested on audio signals sampled at 44.1 kHz.

SEE ALSO

aubioonset(1) aubiotrack(1) aubionotes(1) aubiocut(1)
 

AUTHOR

This manual page was written by Paul Brossier (piem@altern.org). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version published by the Free Software Foundation.

On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.