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+.\" Text automatically generated by txt2man
+.TH AUBIOPITCH 1 "22 July 2023" "aubio 0.4.9" "aubio User's manual"
+.SH NAME
+\fBaubiopitch \fP- a command line tool to extract musical pitch
+\fB
+.SH SYNOPSIS
+.nf
+.fam C
+
+\fBaubiopitch\fP \fIsource\fP
+\fBaubiopitch\fP [[\fB-i\fP] \fIsource\fP] [\fB-o\fP \fIsink\fP]
+           [\fB-r\fP \fIrate\fP] [\fB-B\fP \fIwin\fP] [\fB-H\fP \fIhop\fP]
+           [\fB-p\fP \fImethod\fP] [\fB-u\fP \fIunit\fP] [\fB-l\fP \fIthres\fP]
+           [\fB-T\fP \fItime-format\fP]
+           [\fB-s\fP \fIsil\fP] [\fB-f\fP]
+           [\fB-v\fP] [\fB-h\fP] [\fB-j\fP]
+
+.fam T
+.fi
+.fam T
+.fi
+.SH DESCRIPTION
+
+\fBaubiopitch\fP attempts to detect the pitch, the perceived height of a musical
+note.
+.PP
+When started with an input \fIsource\fP (\fB-i\fP/\fB--input\fP), the detected pitch are
+printed on the console, prefixed by a timestamp in seconds. If no pitch
+candidate is found, the output is 0.
+.PP
+When started without an input \fIsource\fP, or with the jack option (\fB-j\fP/\fB--jack\fP),
+\fBaubiopitch\fP starts in jack mode.
+.SH OPTIONS
+
+This program follows the usual GNU command line syntax, with long options
+starting with two dashes (--). A summary of options is included below.
+.TP
+.B
+\fB-i\fP, \fB--input\fP \fIsource\fP
+Run analysis on this audio file. Most uncompressed and
+compressed are supported, depending on how aubio was built.
+.TP
+.B
+\fB-o\fP, \fB--output\fP \fIsink\fP
+Save results in this file. The file will be created on
+the model of the input file. The detected frequency is played at the
+detected loudness.
+.TP
+.B
+\fB-r\fP, \fB--samplerate\fP \fIrate\fP
+Fetch the input \fIsource\fP, resampled at the given
+sampling \fIrate\fP. The \fIrate\fP should be specified in Hertz as an integer. If 0,
+the sampling \fIrate\fP of the original \fIsource\fP will be used. Defaults to 0.
+.TP
+.B
+\fB-B\fP, \fB--bufsize\fP \fIwin\fP
+The size of the buffer to analyze, that is the length
+of the window used for spectral and temporal computations. Defaults to 2048.
+.TP
+.B
+\fB-H\fP, \fB--hopsize\fP \fIhop\fP
+The number of samples between two consecutive analysis.
+Defaults to 256.
+.TP
+.B
+\fB-p\fP, \fB--pitch\fP \fImethod\fP
+The pitch detection \fImethod\fP to use. See PITCH METHODS
+below. Defaults to 'default'.
+.TP
+.B
+\fB-u\fP, \fB--pitch\fP-\fIunit\fP \fIunit\fP
+The \fIunit\fP to be used to print frequencies. Possible
+values include midi, bin, cent, and Hz. Defaults to 'Hz'.
+.TP
+.B
+\fB-l\fP, \fB--pitch-tolerance\fP \fIthres\fP
+Set the tolerance for the pitch detection
+algorithm. Typical values range between 0.2 and 0.9. Pitch candidates found
+with a confidence less than this threshold will not be selected. The higher
+the threshold, the more confidence in the candidates. Defaults to unset.
+.TP
+.B
+\fB-s\fP, \fB--silence\fP \fIsil\fP
+Set the silence threshold, in dB, under which the onset
+will not be detected. A value of \fB-20.0\fP would eliminate most onsets but the
+loudest ones. A value of \fB-90.0\fP would select all onsets. Defaults to \fB-90.0\fP.
+.TP
+.B
+\fB-T\fP, \fB--timeformat\fP format
+Set time format (samples, ms, seconds). Defaults to
+seconds.
+.TP
+.B
+\fB-m\fP, \fB--mix-input\fP
+Mix \fIsource\fP signal to the output signal before writing to
+\fIsink\fP.
+.TP
+.B
+\fB-f\fP, \fB--force-overwrite\fP
+Overwrite output file if it already exists.
+.TP
+.B
+\fB-j\fP, \fB--jack\fP
+Use Jack input/output. You will need a Jack connection
+controller to feed aubio some signal and listen to its output.
+.TP
+.B
+\fB-h\fP, \fB--help\fP
+Print a short help message and exit.
+.TP
+.B
+\fB-v\fP, \fB--verbose\fP
+Be verbose.
+.SH PITCH METHODS
+
+Available methods are:
+.TP
+.B
+default
+use the default \fImethod\fP
+.PP
+Currently, the default \fImethod\fP is set to yinfft.
+.TP
+.B
+schmitt
+Schmitt trigger
+.PP
+This pitch extraction \fImethod\fP implements a Schmitt trigger to estimate the
+period of a signal. It is computationally very inexpensive, but also very
+sensitive to noise.
+.TP
+.B
+fcomb
+a fast harmonic comb filter
+.PP
+This pitch extraction \fImethod\fP implements a fast harmonic comb filter to
+determine the fundamental frequency of a harmonic sound.
+.TP
+.B
+mcomb
+multiple-comb filter
+.PP
+This fundamental frequency estimation algorithm implements spectral
+flattening, multi-comb filtering and peak histogramming.
+.TP
+.B
+specacf
+Spectral auto-correlation function
+.TP
+.B
+yin
+YIN algorithm
+.PP
+This algorithm was developed by A. de Cheveigne and H. Kawahara and
+was first published in:
+.PP
+De Cheveigné, A., Kawahara, H. (2002) "YIN, a fundamental frequency
+estimator for speech and music", J. Acoust. Soc. Am. 111, 1917-1930.
+.TP
+.B
+yinfft
+Yinfft algorithm
+.PP
+This algorithm was derived from the YIN algorithm. In this implementation, a
+Fourier transform is used to compute a tapered square difference function,
+which allows spectral weighting. Because the difference function is tapered,
+the selection of the period is simplified.
+.PP
+Paul Brossier, Automatic annotation of musical audio for interactive systems,
+Chapter 3, Pitch Analysis, PhD thesis, Centre for Digital music, Queen Mary
+University of London, London, UK, 2006.
+.TP
+.B
+yinfast
+YIN algorithm (accelerated)
+.PP
+An optimised implementation of the YIN algorithm, yielding results identical
+to the original YIN algorithm, while reducing its computational cost from
+\fBO\fP(n^2) to \fBO\fP(n \fBlog\fP(n)).
+.SH SEE ALSO
+
+\fBaubioonset\fP(1),
+\fBaubiotrack\fP(1),
+\fBaubionotes\fP(1),
+\fBaubioquiet\fP(1),
+\fBaubiomfcc\fP(1),
+and
+\fBaubiocut\fP(1).
+.SH AUTHOR
+
+This manual page was written by Paul Brossier <piem@aubio.org>. Permission is
+granted to copy, distribute and/or modify this document under the terms of
+the GNU General Public License as published by the Free Software Foundation,
+either version 3 of the License, or (at your option) any later version.