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AUBIOTRACK(1)                 aubio User's manual                AUBIOTRACK(1)

NAME
       aubiotrack - a command line tool to extract musical beats from audio
       signals

SYNOPSIS

       aubiotrack source
       aubiotrack [[-i] source] [-o sink]
                  [-r rate] [-B win] [-H hop]
                  [-s sil] [-m]
                  [-j] [-v] [-h]

DESCRIPTION
       aubiotrack attempts to detect beats, the time where one would
       intuitively 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
              compressed 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
              controller 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
       Information Retrieval (ISMIR), pages 164169, Barcelona, Spain, 2004.

       Matthew E. P. Davies, Paul Brossier, and Mark D. Plumbley. Beat
       tracking towards automatic musical accompaniment. In Proceedings of the
       Audio Engeeniring Society 118th Convention, Barcelona, Spain, May 2005.

SEE ALSO
       aubioonset(1), aubiopitch(1), aubionotes(1), aubioquiet(1),
       aubiomfcc(1), and aubiocut(1).

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.

aubio 0.4.2                    17 February 2016                  AUBIOTRACK(1)