ref: beea3cfad02b018a96c83874f871cd152a48c1e6
dir: /doc/aubiocut.sgml/
<!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@altern.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>This manual page documents briefly the <command>&dhpackage;</command> command.</para>
<para>The <emphasis>aubio</emphasis> library provides a small set of
functions to extract events and objects from audio, from live streams or
still files. Onsets are used to label the beginning of notes, pitches to
label their height.</para>
<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 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 2 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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