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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Audio Processing Framework (APF): apf::BiQuad< T, DenormalPrevention > Class Template Reference</title>
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<li class="navelem"><a class="el" href="namespaceapf.html">apf</a></li><li class="navelem"><a class="el" href="classapf_1_1BiQuad.html">BiQuad</a></li> </ul>
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<div class="header">
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<a href="#pub-types">Public Types</a> |
<a href="#pub-methods">Public Member Functions</a> |
<a href="#pub-attribs">Public Attributes</a> |
<a href="classapf_1_1BiQuad-members.html">List of all members</a> </div>
<div class="headertitle"><div class="title">apf::BiQuad< T, DenormalPrevention > Class Template Reference</div></div>
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<p>Direct Form II recursive filter of second order.
<a href="classapf_1_1BiQuad.html#details">More...</a></p>
<p><code>#include <<a class="el" href="biquad_8h_source.html">apf/biquad.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for apf::BiQuad< T, DenormalPrevention >:</div>
<div class="dyncontent">
<div class="center"><img src="classapf_1_1BiQuad__inherit__graph.png" border="0" usemap="#aapf_1_1BiQuad_3_01T_00_01DenormalPrevention_01_4_inherit__map" alt="Inheritance graph"/></div>
<map name="aapf_1_1BiQuad_3_01T_00_01DenormalPrevention_01_4_inherit__map" id="aapf_1_1BiQuad_3_01T_00_01DenormalPrevention_01_4_inherit__map">
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<area shape="rect" href="structapf_1_1SosCoefficients.html" title="Coefficients of digital recursive filter (second order section)." alt="" coords="7,5,196,32"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-types" name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a0fb69cdfca25937814f21eb510f44290"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#a0fb69cdfca25937814f21eb510f44290">argument_type</a> = T</td></tr>
<tr class="separator:a0fb69cdfca25937814f21eb510f44290"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa1b3d0b7b1f8e23b503456cd254c5fc8"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#aa1b3d0b7b1f8e23b503456cd254c5fc8">result_type</a> = T</td></tr>
<tr class="separator:aa1b3d0b7b1f8e23b503456cd254c5fc8"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:abf60eed7e1e3f683a2b6f5d4f34ddddb"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classapf_1_1BiQuad.html">BiQuad</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#abf60eed7e1e3f683a2b6f5d4f34ddddb">operator=</a> (const <a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a>< T > &c)</td></tr>
<tr class="memdesc:abf60eed7e1e3f683a2b6f5d4f34ddddb"><td class="mdescLeft"> </td><td class="mdescRight">Assignment operator. <a href="classapf_1_1BiQuad.html#abf60eed7e1e3f683a2b6f5d4f34ddddb">More...</a><br /></td></tr>
<tr class="separator:abf60eed7e1e3f683a2b6f5d4f34ddddb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa097a3df8d7e56241dec62befc4a34b7"><td class="memItemLeft" align="right" valign="top">result_type </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#aa097a3df8d7e56241dec62befc4a34b7">operator()</a> (argument_type in)</td></tr>
<tr class="memdesc:aa097a3df8d7e56241dec62befc4a34b7"><td class="mdescLeft"> </td><td class="mdescRight">Process filter on single sample. <a href="classapf_1_1BiQuad.html#aa097a3df8d7e56241dec62befc4a34b7">More...</a><br /></td></tr>
<tr class="separator:aa097a3df8d7e56241dec62befc4a34b7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_structapf_1_1SosCoefficients"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_structapf_1_1SosCoefficients')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="structapf_1_1SosCoefficients.html">apf::SosCoefficients< T ></a></td></tr>
<tr class="memitem:aaee5570163ea64aea7cc7426d785d2c6 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#aaee5570163ea64aea7cc7426d785d2c6">SosCoefficients</a> (T b0_=T(), T b1_=T(), T b2_=T(), T a1_=T(), T a2_=T())</td></tr>
<tr class="separator:aaee5570163ea64aea7cc7426d785d2c6 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7a2fb078258a4b697316831188d4c263 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a7a2fb078258a4b697316831188d4c263">operator+=</a> (const <a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> &rhs)</td></tr>
<tr class="separator:a7a2fb078258a4b697316831188d4c263 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a653737099e13d2e60c0809d1f139b0d0 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a653737099e13d2e60c0809d1f139b0d0">operator+</a> (const <a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> &rhs) const</td></tr>
<tr class="separator:a653737099e13d2e60c0809d1f139b0d0 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9ac277c3cce7b8dfcdd155dd4d92c019 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a9ac277c3cce7b8dfcdd155dd4d92c019">operator*=</a> (T rhs)</td></tr>
<tr class="separator:a9ac277c3cce7b8dfcdd155dd4d92c019 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2a0ef6b2a0535726fe526f96f840bbfb inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a2a0ef6b2a0535726fe526f96f840bbfb">operator*</a> (T rhs) const</td></tr>
<tr class="separator:a2a0ef6b2a0535726fe526f96f840bbfb inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaf91ab822e6e54739ce08a8f07583105 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#aaf91ab822e6e54739ce08a8f07583105">operator/=</a> (T rhs)</td></tr>
<tr class="separator:aaf91ab822e6e54739ce08a8f07583105 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1b61fa686356dd485fd4c1ca69fde504 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a1b61fa686356dd485fd4c1ca69fde504">operator/</a> (T rhs) const</td></tr>
<tr class="separator:a1b61fa686356dd485fd4c1ca69fde504 inherit pub_methods_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:aa1dba7bfea8051dca61e111baad22289"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#aa1dba7bfea8051dca61e111baad22289">w0</a></td></tr>
<tr class="separator:aa1dba7bfea8051dca61e111baad22289"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4c673f836dd27deb71104c14131a1ad1"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#a4c673f836dd27deb71104c14131a1ad1">w1</a></td></tr>
<tr class="separator:a4c673f836dd27deb71104c14131a1ad1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a042ecc1fbd776879c45143633d663eff"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="classapf_1_1BiQuad.html#a042ecc1fbd776879c45143633d663eff">w2</a></td></tr>
<tr class="separator:a042ecc1fbd776879c45143633d663eff"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_attribs_structapf_1_1SosCoefficients"><td colspan="2" onclick="javascript:toggleInherit('pub_attribs_structapf_1_1SosCoefficients')"><img src="closed.png" alt="-"/> Public Attributes inherited from <a class="el" href="structapf_1_1SosCoefficients.html">apf::SosCoefficients< T ></a></td></tr>
<tr class="memitem:a034ebd7df23613a52594a577ac77900c inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a034ebd7df23613a52594a577ac77900c">b0</a></td></tr>
<tr class="separator:a034ebd7df23613a52594a577ac77900c inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3379d42dcf6f6aaf3981061dbff94a9d inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a3379d42dcf6f6aaf3981061dbff94a9d">b1</a></td></tr>
<tr class="separator:a3379d42dcf6f6aaf3981061dbff94a9d inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae998c80af53f41d9ad1188d03eab8880 inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#ae998c80af53f41d9ad1188d03eab8880">b2</a></td></tr>
<tr class="separator:ae998c80af53f41d9ad1188d03eab8880 inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae3c86c6e0277bf3ef19454392270544b inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#ae3c86c6e0277bf3ef19454392270544b">a1</a></td></tr>
<tr class="separator:ae3c86c6e0277bf3ef19454392270544b inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a65dd9bd5d0233f45ecc5f69131804640 inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="structapf_1_1SosCoefficients.html#a65dd9bd5d0233f45ecc5f69131804640">a2</a></td></tr>
<tr class="separator:a65dd9bd5d0233f45ecc5f69131804640 inherit pub_attribs_structapf_1_1SosCoefficients"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><div class="compoundTemplParams">template<typename T, template< typename > class DenormalPrevention = apf::dp::ac><br />
class apf::BiQuad< T, DenormalPrevention ></div><p >Direct Form II recursive filter of second order. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>internal type of states and coefficients </td></tr>
<tr><td class="paramname">DenormalPrevention</td><td>method of denormal prevention (see <a class="el" href="namespaceapf_1_1dp.html" title="Denormal prevention.">apf::dp</a>) </td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classapf_1_1Cascade.html" title="Cascade of filter sections.">Cascade</a>, <a class="el" href="namespaceapf.html#a4c02c4c6fcddb640f300a6d588f64989" title="Bilinear transform.">bilinear()</a> </dd></dl>
<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00145">145</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
</div><h2 class="groupheader">Member Typedef Documentation</h2>
<a id="a0fb69cdfca25937814f21eb510f44290" name="a0fb69cdfca25937814f21eb510f44290"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0fb69cdfca25937814f21eb510f44290">◆ </a></span>argument_type</h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
<table class="memname">
<tr>
<td class="memname">using <a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::argument_type = T</td>
</tr>
</table>
</div><div class="memdoc">
<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00148">148</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
</div>
</div>
<a id="aa1b3d0b7b1f8e23b503456cd254c5fc8" name="aa1b3d0b7b1f8e23b503456cd254c5fc8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa1b3d0b7b1f8e23b503456cd254c5fc8">◆ </a></span>result_type</h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
<table class="memname">
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<td class="memname">using <a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::result_type = T</td>
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<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00149">149</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a2d79a849e38746c78c5dc2d82a732f92">◆ </a></span>BiQuad()</h2>
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template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
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<td class="memname"><a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::BiQuad </td>
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<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00151">151</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#abf60eed7e1e3f683a2b6f5d4f34ddddb">◆ </a></span>operator=()</h2>
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template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
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<td class="memname"><a class="el" href="classapf_1_1BiQuad.html">BiQuad</a> & <a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::operator= </td>
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<td class="paramtype">const <a class="el" href="structapf_1_1SosCoefficients.html">SosCoefficients</a>< T > & </td>
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<p>Assignment operator. </p>
<p >Change coefficients when operator '=' is called with <a class="el" href="structapf_1_1SosCoefficients.html" title="Coefficients of digital recursive filter (second order section).">SosCoefficients</a>. </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">c</td><td>New set of coefficients </td></tr>
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<dl class="section note"><dt>Note</dt><dd>state is unchanged! </dd></dl>
<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00157">157</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aa097a3df8d7e56241dec62befc4a34b7">◆ </a></span>operator()()</h2>
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template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
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<td class="memname">result_type <a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::operator() </td>
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<p>Process filter on single sample. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<dl class="section return"><dt>Returns</dt><dd>output sample </dd></dl>
<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00166">166</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aa1dba7bfea8051dca61e111baad22289">◆ </a></span>w0</h2>
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template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
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<td class="memname">T <a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::w0</td>
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<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00179">179</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
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<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00179">179</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a042ecc1fbd776879c45143633d663eff">◆ </a></span>w2</h2>
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template<typename T , template< typename > class DenormalPrevention = apf::dp::ac> </div>
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<td class="memname">T <a class="el" href="classapf_1_1BiQuad.html">apf::BiQuad</a>< T, DenormalPrevention >::w2</td>
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<p class="definition">Definition at line <a class="el" href="biquad_8h_source.html#l00179">179</a> of file <a class="el" href="biquad_8h_source.html">biquad.h</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li>apf/<a class="el" href="biquad_8h_source.html">biquad.h</a></li>
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