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<?xml version="1.0" encoding="UTF-8"?>
<!--
*
* This help file was generated from rc2is.sci using help_from_sci().
*
-->
<refentry version="5.0-subset Scilab" xml:id="rc2is" xml:lang="en"
xmlns="http://docbook.org/ns/docbook"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:ns3="http://www.w3.org/1999/xhtml"
xmlns:mml="http://www.w3.org/1998/Math/MathML"
xmlns:scilab="http://www.scilab.org"
xmlns:db="http://docbook.org/ns/docbook">
<refnamediv>
<refname>rc2is</refname>
<refpurpose>Convert reflection coefficients to inverse sine parameters</refpurpose>
</refnamediv>
<refsynopsisdiv>
<title>Calling Sequence</title>
<synopsis>
isin = rc2is(K)
</synopsis>
</refsynopsisdiv>
<refsection>
<title>Parameters</title>
<variablelist>
<varlistentry><term>k:</term>
<listitem><para> input reflection coefficients. Needs to be an array of real numbers between -1 and 1</para></listitem></varlistentry>
<varlistentry><term>isin:</term>
<listitem><para> inverse sine parameters corresponding to the reflection coefficients in input</para></listitem></varlistentry>
</variablelist>
</refsection>
<refsection>
<title>Description</title>
<para>
This function returns the inverse sine parameters corresponding to the input reflection coefficients K.
output array has isin(i) = 2/pi*asin(k(i))
</para>
<para>
Example
k = [0.3090 0.9801 0.0031 0.0082 -0.0082];
isin = rc2is(k) //Gives inverse sine parameters
</para>
<para>
</para>
</refsection>
<refsection>
<title>See also</title>
<simplelist type="inline">
<member><link linkend="is2rc">is2rc</link></member>
<member><link linkend="rc2poly">rc2poly</link></member>
<member><link linkend="rc2ac">rc2ac</link></member>
<member><link linkend="rc2lar">rc2lar</link></member>
</simplelist>
</refsection>
<refsection>
<title>Authors</title>
<simplelist type="vert">
<member>Parthe Pandit</member>
</simplelist>
</refsection>
<refsection>
<title>Bibliography</title>
<para>J.R. Deller, J.G. Proakis, J.H.L. Hansen, "Discrete-Time Processing of Speech Signals", Prentice Hall, Section 7.4.5</para>
<para>modified function to handle char i/p and also changed error statements to match those of MATLAB by Debdeep Dey</para>
<para>convert char i/p to their respective ascii values</para>
</refsection>
</refentry>
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