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<refentry id="fmpercfl">
<indexterm id="IndexFmpercfl"><primary>fmpercfl</primary></indexterm>
<refentryinfo><title>Signal Generators:FM Synthesis</title></refentryinfo>
<refmeta>
<refentrytitle>fmpercfl</refentrytitle>
</refmeta>
<refnamediv>
<refname>fmpercfl</refname>
<refpurpose>
Uses FM synthesis to create a percussive flute sound.
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
Uses FM synthesis to create a percussive flute sound. It comes from a family of FM sounds, all using 4 basic oscillators and various architectures, as used in the TX81Z synthesizer.
</para>
</refsect1>
<refsect1>
<title>Syntax</title>
<synopsis>ares <command>fmpercfl</command> kamp, kfreq, kc1, kc2, kvdepth, kvrate, ifn1, ifn2, \
ifn3, ifn4, ivfn</synopsis>
</refsect1>
<refsect1>
<title>Initialization</title>
<para>
All these opcodes take 5 tables for initialization. The first 4 are the basic inputs and the last is the low frequency oscillator (LFO) used for vibrato. The last table should usually be a sine wave.
</para>
<para>
The initial waves should be:
<itemizedlist>
<listitem><para><emphasis>ifn1</emphasis> -- sine wave</para></listitem>
<listitem><para><emphasis>ifn2</emphasis> -- sine wave</para></listitem>
<listitem><para><emphasis>ifn3</emphasis> -- sine wave</para></listitem>
<listitem><para><emphasis>ifn4</emphasis> -- sine wave</para></listitem>
</itemizedlist>
</para>
</refsect1>
<refsect1>
<title>Performance</title>
<para>
<emphasis>kamp</emphasis> -- Amplitude of note.
</para>
<para>
<emphasis>kfreq</emphasis> -- Frequency of note played.
</para>
<para>
<emphasis>kc1, kc2</emphasis> -- Controls for the synthesizer:
<itemizedlist>
<listitem><para><emphasis>kc1</emphasis> -- Total mod index</para></listitem>
<listitem><para><emphasis>kc2</emphasis> -- Crossfade of two modulators</para></listitem>
<listitem><para><emphasis>Algorithm</emphasis> -- 4</para></listitem>
</itemizedlist>
</para>
<para>
<emphasis>kvdepth</emphasis> -- Vibrator depth
</para>
<para>
<emphasis>kvrate</emphasis> -- Vibrator rate
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Here is an example of the fmpercfl opcode. It uses the file <ulink url="examples/fmpercfl.csd"><citetitle>fmpercfl.csd</citetitle></ulink>.
<example>
<title>Example of the fmpercfl 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/fmpercfl.csd.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
</example>
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<link linkend="fmb3"><citetitle>fmb3</citetitle></link>,
<link linkend="fmbell"><citetitle>fmbell</citetitle></link>,
<link linkend="fmmetal"><citetitle>fmmetal</citetitle></link>,
<link linkend="fmrhode"><citetitle>fmrhode</citetitle></link>,
<link linkend="fmwurlie"><citetitle>fmwurlie</citetitle></link>
</para>
</refsect1>
<refsect1>
<title>Credits</title>
<para>
<simplelist>
<member>Author: &namejohn; (after &nameperry;)</member>
<member>University of Bath, Codemist Ltd.</member>
<member>Bath, UK</member>
</simplelist>
</para>
<para>Example written by &namekevin;.</para>
<para>New in Csound version 3.47</para>
</refsect1>
</refentry>
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