aubiotrack man page on DragonFly

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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	 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 ALSO
       aubioonset(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)
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