source: doc/aubiocut.sgml @ 54dd945

<!doctype refentry PUBLIC "-//OASIS//DTD DocBook V4.1//EN" [

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  <!-- Fill in your name for FIRSTNAME and SURNAME. -->
  <!ENTITY dhfirstname "<firstname>Paul</firstname>">
  <!ENTITY dhsurname   "<surname>Brossier</surname>">
  <!-- Please adjust the date whenever revising the manpage. -->
  <!ENTITY dhdate      "<date>December 1, 2004</date>">
  <!-- SECTION should be 1-8, maybe w/ subsection other parameters are
       allowed: see man(7), man(1). -->
  <!ENTITY dhsection   "<manvolnum>1</manvolnum>">
  <!ENTITY dhemail     "<email>piem@aubio.org</email>">
  <!ENTITY dhusername  "Paul Brossier">
  <!ENTITY dhucpackage "<refentrytitle>AUBIOCUT</refentrytitle>">
  <!ENTITY dhpackage   "aubiocut">

  <!ENTITY debian      "<productname>Debian</productname>">
  <!ENTITY gnu         "<acronym>GNU</acronym>">
  <!ENTITY gpl         "&gnu; <acronym>GPL</acronym>">
]>

<refentry>
  <refentryinfo>
    <address>
      &dhemail;
    </address>
    <author>
      &dhfirstname;
      &dhsurname;
    </author>
    <copyright>
      <year>2003</year>
      <holder>&dhusername;</holder>
    </copyright>
    &dhdate;
  </refentryinfo>
  <refmeta>
    &dhucpackage;

    &dhsection;
  </refmeta>
  <refnamediv>
    <refname>&dhpackage;</refname>

    <refpurpose>a command line tool to extract onsets and tempo from sound files.</refpurpose>

  </refnamediv>
  <refsynopsisdiv>
    <cmdsynopsis>
      <command>&dhpackage; <parameter>[options] -i soundfile</parameter></command>
    </cmdsynopsis>
  </refsynopsisdiv>
  <refsect1>
    <title>DESCRIPTION</title>

    <para><command>&dhpackage;</command> attempts to detect onset times, the
    beginning of discreted sound events, or beat locations, in audio
    signals.</para>

    <para>When using the <option>--cut</option> option,
    <command>&dhpackage;</command> takes an input sound file and produce small
    files sliced at onset locations (or silences). The slices can then be sent
    for example to a player, a sequencer, or a sampler.</para>

    <para>A plotting module is available via the Gnuplot Python package.</para>

  </refsect1>
  <refsect1>
    <title>OPTIONS</title>

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

<variablelist>
  <varlistentry>
  <term><option>-i</option>
  <option>--input filein</option></term>
  <listitem>
  <para>input sound file</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-m</option>
  <option>--mode onset_detection_mode</option></term>
  <listitem>
  <para>onset detection mode [default=dual] complexdomain|hfc|phase|specdiff|energy|kl|mkl|dual</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-b</option>
  <option>--beat</option></term>
  <listitem>
  <para>detect beats and output beat locations</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-B</option>
  <option>--bufsize=BUFSIZE</option></term>
  <listitem>
  <para>buffer size [default=512]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-H</option>
  <option>--hopsize=HOPSIZE</option></term>
  <listitem>
  <para>overlap size [default=256]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-t</option>
  <option>--threshold=THRESHOLD</option></term>
  <listitem>
  <para>onset peak picking threshold [default=0.3]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-C</option>
  <option>--dcthreshold=DCTHRESHOLD</option></term>
  <listitem>
  <para>onset peak picking DC component [default=1.]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-s</option>
  <option>--silence=SILENCE</option></term>
  <listitem>
  <para>silence threshold [default=-70]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-M</option>
  <option>--mintol=MINIOI</option></term>
  <listitem>
  <para>minimum inter onset interval [default=0.048s]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-D</option>
  <option>--delay=DELAY</option></term>
  <listitem>
  <para>number of seconds to take back [default=system]
  default system delay is 3*hopsize/samplerate</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-L</option>
  <option>--localmin</option></term>
  <listitem>
  <para>use local minima after peak detection</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-c</option>
  <option>--cut</option></term>
  <listitem>
  <para>cut input sound file at detected labels (best used with option -L)</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-d</option>
  <option>--derivate</option></term>
  <listitem>
  <para>derivate onset detection function</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-S</option>
  <option>--silencecut</option></term>
  <listitem>
  <para>outputs silence locations instead of onset locations</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-z</option>
  <option>--zerocross=ZEROTHRES</option></term>
  <listitem>
  <para>zero-crossing threshold for slicing [default=0.00008]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-f</option>
  <option>--function</option></term>
  <listitem>
  <para>print detection function</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-q</option>
  <option>--quiet</option></term>
  <listitem>
  <para>be quiet</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-h</option>
  <option>--help</option></term>
  <listitem>
  <para>Show a summary of options.</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-v</option>
  <option>--verbose</option></term>
  <listitem>
  <para>make lots of noise [default]</para>
  </listitem>
  </varlistentry>
  </variablelist>

  <refsect2>
    <title>Plotting options</title>

  <para>When the Python interface to Gnuplot is installed, the following
  additional options are available.</para>

  <variablelist>
  <varlistentry>
  <term><option>-p</option>
  <option>--plot</option></term>
  <listitem>
  <para>draw plot</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-n</option>
  <option>--no-onsets</option></term>
  <listitem>
  <para>do not plot detected onsets, only detection functions</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-x</option>
  <option>--xsize=SIZE</option></term>
  <listitem>
  <para>define horizontal plot size [default=1.]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-y</option>
  <option>--ysize=SIZE</option></term>
  <listitem>
  <para>define vertical plot size [default=1.]</para>
  </listitem>
  </varlistentry>
  <varlistentry>
  <term><option>-O</option>
  <option>--outplot=OUTPLOT</option></term>
  <listitem>
  <para>save plot to output.{ps,eps,png,svg} instead of displaying it</para>
  </listitem>
  </varlistentry>
  </variablelist>
  </refsect2>

  </refsect1>
  <refsect1>
  <title>BUGS</title>

  <para>For now the program has only been tested on audio signals sampled at
  44.1&nbsp;kHz.</para>

  </refsect1>

  <refsect1>
    <title>SEE ALSO</title>

    <para>
    <command>aubioonset</command>(1)
    <command>aubiotrack</command>(1)
    <command>aubionotes</command>(1)
    <command>aubiopitch</command>(1)
    </para>

  </refsect1>

  <refsect1>
    <title>AUTHOR</title>

    <para>This manual page was written by &dhusername; (&dhemail;). Permission
    is granted to copy, distribute and/or modify this document under the terms
    of the &gnu; General Public License, Version 3 any later version published
    by the Free Software Foundation.</para>

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

  </refsect1>
</refentry>

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