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<refentry id="trsplit">
<indexterm id="Indextrsplit"><primary>trsplit</primary></indexterm>
<refentryinfo><title>Spectral Processing:Streaming</title></refentryinfo>
<refmeta>
<refentrytitle>trsplit</refentrytitle>
</refmeta>
<refnamediv>
<refname>trsplit</refname>
<refpurpose>
Streaming partial track frequency splitting.
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
The <emphasis>trsplit</emphasis> opcode takes an input containg a TRACKS pv streaming signal (as generated,
for instance by <emphasis>partials</emphasis>) and splits it into two signals according to a k-rate frequency 'split point'.
The first output will contain all tracks up from 0Hz to the split frequency and the second will
contain the tracks from the split frequency up to the Nyquist.
It can also, optionally, scale the gain of the output signals by a k-rate amount (default 1).
The result is two output signals containing only part of the original spectrum.
</para>
</refsect1>
<refsect1>
<title>Syntax</title>
<synopsis>fsiglow, fsighi <command>trsplit</command> fin, ksplit[, kgainlow, kgainhigh]</synopsis>
</refsect1>
<refsect1>
<title>Performance</title>
<para>
<emphasis>fsiglow</emphasis> -- output pv stream in TRACKS format containing the tracks below
the split point.
</para>
<para>
<emphasis>fsighi</emphasis> -- output pv stream in TRACKS format containing the tracks above and
including the split point.
</para>
<para>
<emphasis>fin</emphasis> -- input pv stream in TRACKS format
</para>
<para>
<emphasis>ksplit</emphasis> -- frequency split point in Hz
</para>
<para>
<emphasis>kgainlow, kgainhig</emphasis> -- amplitude scaling of each one of the
outputs (default 1).
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Here is an example of the trsplit opcode. It uses the file <ulink url="examples/trsplit.csd"><citetitle>trsplit.csd</citetitle></ulink>.
<example>
<title>Example of the trsplit 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/trsplit.csd.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
</example>
</para>
<para>
The example above shows partial tracking of an ifd-analysis signal and
linear additive resynthesis of the upper part of the spectrum (from 1500Hz).
</para>
</refsect1>
<refsect1>
<title>Credits</title>
<para>
<simplelist>
<member>Author: &namevictor;</member>
<member>February 2006 </member>
</simplelist>
</para>
<para>New in Csound 5.01</para>
</refsect1>
</refentry>
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