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<refentry id="dbfsamp">
<indexterm id="IndexDbfsamp"><primary>dbfsamp</primary></indexterm>
<refentryinfo><title>Mathematical Operations:Amplitude Functions</title></refentryinfo>
<refmeta>
<refentrytitle>dbfsamp</refentrytitle>
</refmeta>
<refnamediv>
<refname>dbfsamp</refname>
<refpurpose>
Returns the decibel equivalent of the raw amplitude <emphasis>x</emphasis>, relative to full scale amplitude.
</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
Returns the decibel equivalent of the raw amplitude <emphasis>x</emphasis>, relative to full scale amplitude. Full scale is assumed to be 16 bit. New is Csound version 4.10.
</para>
</refsect1>
<refsect1>
<title>Syntax</title>
<synopsis><command>dbfsamp</command>(x) (init-rate or control-rate args only)</synopsis>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Here is an example of the dbfsamp opcode. It uses the file <ulink url="examples/dbfsamp.csd"><citetitle>dbfsamp.csd</citetitle></ulink>.
<example>
<title>Example of the dbfsamp 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/dbfsamp.csd.xml" xmlns:xi="http://www.w3.org/2001/XInclude"/>
</example>
Its output should include lines like this:
<screen>instr 1: idb = -0.767</screen>
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<para>
<link linkend="ampdb"><citetitle>ampdb</citetitle></link>,
<link linkend="ampdbfs"><citetitle>ampdbfs</citetitle></link>,
<link linkend="dbamp"><citetitle>dbamp</citetitle></link>
</para>
</refsect1>
<refsect1>
<title>Credits</title>
<para>Example written by &namekevin;.</para>
</refsect1>
</refentry>
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