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<refentry id="mp3in">
<indexterm id="IndexMp3in"><primary>mp3in</primary></indexterm>
<refentryinfo><title>Signal I/O:Signal Input</title></refentryinfo>
<refmeta>
<refentrytitle>mp3in</refentrytitle>
</refmeta>
<refnamediv>
<refname>mp3in</refname>
<refpurpose>
Reads stereo audio data from an external MP3 file.
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
Reads stereo audio data from an external MP3 file.
</para>
</refsect1>
<refsect1>
<title>Syntax</title>
<synopsis>ar1, ar2 <command>mp3in</command> ifilcod[, iskptim, iformat, iskipinit, ibufsize]</synopsis>
</refsect1>
<refsect1>
<title>Initialization</title>
<para>
<emphasis>ifilcod</emphasis> -- integer or character-string
denoting the source soundfile name. An integer denotes the file
soundin.filcod ; a character-string (in double quotes, spaces
permitted) gives the filename itself, optionally a full
pathname. If not a full path, the named file is sought first in
the current directory, then in that given by the environment
variable <link linkend="CommandEnvironment"><citetitle>SSDIR</citetitle></link> (if defined) then by <link linkend="CommandEnvironment"><citetitle>SFDIR</citetitle></link>.
</para>
<para>
<emphasis>iskptim</emphasis> (optional) -- time in seconds of input sound to be skipped. The default value is 0.
</para>
<para>
<emphasis>iformat</emphasis> (optional) -- specifies the audio
data file format: currently not implemented and always defaults
to stereo.
</para>
<para>
<emphasis>iskipinit</emphasis> (optional) -- switches off all
initialisation if non zero (default =0).
</para>
<para>
<emphasis>ibuffersize</emphasis> (optional) -- sets the internal buffer size
for reading. If the value is omitted, zero or negative it defaults to
4096 bytes.
</para>
</refsect1>
<refsect1>
<title>Performance</title>
<para>
Reads stereo audio data from an external MP3 file.
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Here is an example of the mp3in opcode. It uses the file <ulink url="examples/mp3in.csd"><citetitle>mp3in.csd</citetitle></ulink>.
<example>
<title>Example of the mp3in opcode.</title>
<para>See the sections <link linkend="UsingRealTime"><citetitle>Real-time Audio</citetitle></link> and <link linkend="CommandFlags"><citetitle>Command Line Flags</citetitle></link> for more information on using command line flags.</para>
<xi:include href="examples-xml/mp3in.csd.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
</example>
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<link linkend="diskin"><citetitle>diskin</citetitle></link>,
<link linkend="ins"><citetitle>ins</citetitle></link>,
<link linkend="in"><citetitle>in</citetitle></link>,
<link linkend="inch"><citetitle>inh</citetitle></link>,
<link linkend="inh"><citetitle>inh</citetitle></link>,
<link linkend="ino"><citetitle>ino</citetitle></link>,
<link linkend="inq"><citetitle>inq</citetitle></link>,
<link linkend="mp3len"><citetitle>mp3len</citetitle></link>,
<link linkend="soundin"><citetitle>soundin</citetitle></link>
</para>
</refsect1>
<refsect1>
<title>Credits</title>
<para>
<simplelist>
<member>Author: &namejohn;</member>
<member>Codemist Ltd</member>
<member>2009</member>
</simplelist>
</para>
<para>New in version 5.11</para>
</refsect1>
</refentry>
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