ref: 992beaa9bea5d3cd1aae961f80f581d2003bcc79
dir: /doc/aubioonset.sgml/
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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>AUBIOONSET</refentrytitle>">
<!ENTITY dhpackage "aubioonset">
<!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 for real time onset extraction</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, in audio signals.</para>
<para>When started without an input file argument
(<option>--input</option>), <command>&dhpackage;</command> creates jack
input and output ports. When an input file is given, the results are given
on the console.</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>Run analysis on this audio file. Most common uncompressed formats are
supported.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-o</option>
<option>--output fileout</option></term>
<listitem>
<para>Save results in this file. The file will be created on the model of the
input file. Results are marked by a short wood-block sample.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-O</option>
<option>--onset mode</option></term>
<listitem>
<para>The onset detection function to run. Available functions are
<emphasis>complexdomain</emphasis>, <emphasis>hfc</emphasis>,
<emphasis>phase</emphasis>, <emphasis>specdiff</emphasis>,
<emphasis>energy</emphasis>, <emphasis>kl</emphasis> and
<emphasis>mkl</emphasis>. By default, both Kullback Liebler (kl) and complex
domain are used in parallel.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-t</option>
<option>--threshold value</option></term>
<listitem>
<para>Set the threshold value for the onset peak picking. Typical values are
within <literal>0.001</literal> and <literal>0.900</literal>. Default is
<literal>0.1</literal>. <emphasis>Lower</emphasis> threshold values imply
<emphasis>more</emphasis> onsets detected. Try <literal>0.3</literal> in
case of over-detections.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-j</option>
<option>--jack</option></term>
<listitem>
<para>Run in jack mode (default when started without input file) and creates a midi output.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-v</option>
<option>--verbose</option></term>
<listitem>
<para>Show results on the console (default).</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-h</option>
<option>--help</option></term>
<listitem>
<para>Show summary of options.</para>
</listitem>
</varlistentry>
</variablelist>
</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>aubiotrack</command>(1)
<command>aubionotes</command>(1)
<command>aubiocut</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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