AUBIOTRACK(1) aubio User's manual AUBIOTRACK(1)NAMEaubiotrack - a command line tool to extract musical beats from audio
signals
SYNOPSISaubiotrack source
aubiotrack [[-i] source] [-o sink]
[-r rate] [-B win] [-H hop]
[-s sil] [-m]
[-j] [-v] [-h]
DESCRIPTIONaubiotrack attempts to detect beats, the time where one would intu‐
itively be tapping his foot.
When started with an input source (-i/--input), the detected beats are
given on the console, in seconds.
When started without an input source, or with the jack option
(-j/--jack), aubiotrack starts in jack mode.
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 source
Run analysis on this audio file. Most uncompressed and com‐
pressed are supported, depending on how aubio was built.
-o, --output sink
Save results in this file. The file will be created on the model
of the input file. Beats are marked by a short wood-block like
sound.
-r, --samplerate rate
Fetch the input source, resampled at the given sampling rate.
The rate should be specified in Hertz as an integer. If 0, the
sampling rate of the original source will be used. Defaults to
0.
-B, --bufsize win
The size of the buffer to analyze, that is the length of the
window used for spectral and temporal computations. Defaults to
512.
-H, --hopsize hop
The number of samples between two consecutive analysis.
Defaults to 256.
-s, --silence sil
Set the silence threshold, in dB, under which the pitch will not
be detected. A value of -20.0 would eliminate most onsets but
the loudest ones. A value of -90.0 would select all onsets.
Defaults to -90.0.
-m, --mix-input
Mix source signal to the output signal before writing to sink.
-f, --force-overwrite
Overwrite output file if it already exists.
-j, --jack
Use Jack input/output. You will need a Jack connection con‐
troller to feed aubio some signal and listen to its output.
-h, --help
Print a short help message and exit.
-v, --verbose
Be verbose.
BEAT TRACKING METHODS
Aubio currently implements one the causal beat tracking algorithm
designed by Matthew Davies and described in the following articles:
Matthew E. P. Davies and Mark D. Plumbley. Causal tempo tracking of
audio. In Proceedings of the International Symposium on Music Informa‐
tion Retrieval (ISMIR), pages 164169, Barcelona, Spain, 2004.
Matthew E. P. Davies, Paul Brossier, and Mark D. Plumbley. Beat track‐
ing towards automatic musical accompaniment. In Proceedings of the
Audio Engeeniring Society 118th Convention, Barcelona, Spain, May 2005.
SEE ALSOaubioonset(1), aubiopitch(1), aubionotes(1), aubioquiet(1), aubiom‐
fcc(1), and aubiocut(1).
AUTHOR
This manual page was written by Paul Brossier <piem@aubio.org>. Permis‐
sion 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.
aubio 0.4.2 17 February 2016 AUBIOTRACK(1)