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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>HOA Library: Wider< D, T > Class Template Reference</title>
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 <span id="projectnumber">beta 3.0</span>
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<div id="projectbrief">High Order Ambisonics Library</div>
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<li class="navelem"><a class="el" href="namespacehoa.html">hoa</a></li><li class="navelem"><a class="el" href="classhoa_1_1_wider.html">Wider</a></li> </ul>
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<a href="#pub-methods">Public Member Functions</a> |
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<p>The class widens the propagation of the sounds in a sound field.
<a href="classhoa_1_1_wider.html#details">More...</a></p>
<p><code>#include <<a class="el" href="_hoa___wider_8hpp_source.html">Hoa_Wider.hpp</a>></code></p>
<div class="dynheader">
Inheritance diagram for Wider< D, T >:</div>
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<img src="classhoa_1_1_wider.png" usemap="#Wider_3C_20D_2C_20T_20_3E_map" alt=""/>
<map id="Wider_3C_20D_2C_20T_20_3E_map" name="Wider< D, T >_map">
<area href="classhoa_1_1_processor_harmonics.html" title="The harmonic processor. " alt="ProcessorHarmonics< D, T >" shape="rect" coords="0,56,179,80"/>
<area href="classhoa_1_1_processor.html" title="The processor. " alt="Processor< D, T >" shape="rect" coords="0,0,179,24"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a19ebcc955bd610d6fa1daea18ffa0ce5"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_wider.html#a19ebcc955bd610d6fa1daea18ffa0ce5">Wider</a> (const size_t order)</td></tr>
<tr class="memdesc:a19ebcc955bd610d6fa1daea18ffa0ce5"><td class="mdescLeft"> </td><td class="mdescRight">The constructor. <a href="#a19ebcc955bd610d6fa1daea18ffa0ce5">More...</a><br /></td></tr>
<tr class="separator:a19ebcc955bd610d6fa1daea18ffa0ce5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a88230a46e6a19834db610033c99c40f2"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a88230a46e6a19834db610033c99c40f2"></a>
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_wider.html#a88230a46e6a19834db610033c99c40f2">~Wider</a> ()</td></tr>
<tr class="memdesc:a88230a46e6a19834db610033c99c40f2"><td class="mdescLeft"> </td><td class="mdescRight">The destructor. <br /></td></tr>
<tr class="separator:a88230a46e6a19834db610033c99c40f2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9d1f93db99bdc8f7adecf88702a64870"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_wider.html#a9d1f93db99bdc8f7adecf88702a64870">setWidening</a> (const T value) hoa_noexcept</td></tr>
<tr class="memdesc:a9d1f93db99bdc8f7adecf88702a64870"><td class="mdescLeft"> </td><td class="mdescRight">This method set factor of widening. <a href="#a9d1f93db99bdc8f7adecf88702a64870">More...</a><br /></td></tr>
<tr class="separator:a9d1f93db99bdc8f7adecf88702a64870"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aaee76c23a5f365fea321e8a0a62bd1d8"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aaee76c23a5f365fea321e8a0a62bd1d8"></a>
T </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_wider.html#aaee76c23a5f365fea321e8a0a62bd1d8">getWidening</a> () const hoa_noexcept</td></tr>
<tr class="memdesc:aaee76c23a5f365fea321e8a0a62bd1d8"><td class="mdescLeft"> </td><td class="mdescRight">Returns the the widening value. <br /></td></tr>
<tr class="separator:aaee76c23a5f365fea321e8a0a62bd1d8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8db6cd9de03f1b17e86080ff74a46025"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_wider.html#a8db6cd9de03f1b17e86080ff74a46025">process</a> (const T *inputs, T *outputs) hoa_noexcept hoa_final</td></tr>
<tr class="memdesc:a8db6cd9de03f1b17e86080ff74a46025"><td class="mdescLeft"> </td><td class="mdescRight">The method performs the widening on the harmonics signal. <a href="#a8db6cd9de03f1b17e86080ff74a46025">More...</a><br /></td></tr>
<tr class="separator:a8db6cd9de03f1b17e86080ff74a46025"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classhoa_1_1_processor_harmonics"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classhoa_1_1_processor_harmonics')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classhoa_1_1_processor_harmonics.html">ProcessorHarmonics< D, T ></a></td></tr>
<tr class="memitem:a6c046a8eea082c04363643b4d5a861c5 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a6c046a8eea082c04363643b4d5a861c5">ProcessorHarmonics</a> (const size_t order) hoa_noexcept</td></tr>
<tr class="memdesc:a6c046a8eea082c04363643b4d5a861c5 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">The harmonics constructor. <a href="#a6c046a8eea082c04363643b4d5a861c5">More...</a><br /></td></tr>
<tr class="separator:a6c046a8eea082c04363643b4d5a861c5 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae356bc4bd84a253c316bce3b84d11a1e inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae356bc4bd84a253c316bce3b84d11a1e"></a>
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#ae356bc4bd84a253c316bce3b84d11a1e">~ProcessorHarmonics</a> () hoa_noexcept</td></tr>
<tr class="memdesc:ae356bc4bd84a253c316bce3b84d11a1e inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">The harmonics destructor. <br /></td></tr>
<tr class="separator:ae356bc4bd84a253c316bce3b84d11a1e inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a022c96904c6016c6a984b70107a3f574 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a022c96904c6016c6a984b70107a3f574"></a>
size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a022c96904c6016c6a984b70107a3f574">getDecompositionOrder</a> () const hoa_noexcept</td></tr>
<tr class="memdesc:a022c96904c6016c6a984b70107a3f574 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the order of decomposition. <br /></td></tr>
<tr class="separator:a022c96904c6016c6a984b70107a3f574 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae2bfb1d90e280e369b1d4f0a445e491f inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae2bfb1d90e280e369b1d4f0a445e491f"></a>
size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#ae2bfb1d90e280e369b1d4f0a445e491f">getNumberOfHarmonics</a> () const hoa_noexcept</td></tr>
<tr class="memdesc:ae2bfb1d90e280e369b1d4f0a445e491f inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of harmonics. <br /></td></tr>
<tr class="separator:ae2bfb1d90e280e369b1d4f0a445e491f inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1a4ac723612a8fd301322c7f649db738 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a1a4ac723612a8fd301322c7f649db738">getHarmonicDegree</a> (const size_t index) const hoa_noexcept</td></tr>
<tr class="memdesc:a1a4ac723612a8fd301322c7f649db738 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the degree of an harmonic. <a href="#a1a4ac723612a8fd301322c7f649db738">More...</a><br /></td></tr>
<tr class="separator:a1a4ac723612a8fd301322c7f649db738 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a04933264f971ac86125ead92b4cf1177 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top">long </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a04933264f971ac86125ead92b4cf1177">getHarmonicOrder</a> (const size_t index) const hoa_noexcept</td></tr>
<tr class="memdesc:a04933264f971ac86125ead92b4cf1177 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the azimuthal order of an harmonic. <a href="#a04933264f971ac86125ead92b4cf1177">More...</a><br /></td></tr>
<tr class="separator:a04933264f971ac86125ead92b4cf1177 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2c5d31e082cfa79c253bb6c3c969fa0b inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a2c5d31e082cfa79c253bb6c3c969fa0b">getHarmonicIndex</a> (const size_t degree, const long order) const hoa_noexcept</td></tr>
<tr class="memdesc:a2c5d31e082cfa79c253bb6c3c969fa0b inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the index of an harmonic given the degree and the azimuthal order. <a href="#a2c5d31e082cfa79c253bb6c3c969fa0b">More...</a><br /></td></tr>
<tr class="separator:a2c5d31e082cfa79c253bb6c3c969fa0b inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a847895cc614362e651d755ce1150e51d inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a847895cc614362e651d755ce1150e51d">getHarmonicName</a> (const size_t index) const hoa_noexcept</td></tr>
<tr class="memdesc:a847895cc614362e651d755ce1150e51d inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the name of an harmonic. <a href="#a847895cc614362e651d755ce1150e51d">More...</a><br /></td></tr>
<tr class="separator:a847895cc614362e651d755ce1150e51d inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a23f022db7c23e001a36d172279b63376 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a23f022db7c23e001a36d172279b63376">getHarmonicNormalization</a> (const size_t index) const hoa_noexcept</td></tr>
<tr class="memdesc:a23f022db7c23e001a36d172279b63376 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the normalization of an harmonic. <a href="#a23f022db7c23e001a36d172279b63376">More...</a><br /></td></tr>
<tr class="separator:a23f022db7c23e001a36d172279b63376 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1819efdb4d5088d8c94d1366bcc0d9c3 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memItemLeft" align="right" valign="top">T </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor_harmonics.html#a1819efdb4d5088d8c94d1366bcc0d9c3">getHarmonicSemiNormalization</a> (const size_t index) const hoa_noexcept</td></tr>
<tr class="memdesc:a1819efdb4d5088d8c94d1366bcc0d9c3 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="mdescLeft"> </td><td class="mdescRight">Returns the semi-normalization of an harmonic. <a href="#a1819efdb4d5088d8c94d1366bcc0d9c3">More...</a><br /></td></tr>
<tr class="separator:a1819efdb4d5088d8c94d1366bcc0d9c3 inherit pub_methods_classhoa_1_1_processor_harmonics"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="inherit_header pub_methods_classhoa_1_1_processor"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classhoa_1_1_processor')"><img src="closed.png" alt="-"/> Public Member Functions inherited from <a class="el" href="classhoa_1_1_processor.html">Processor< D, T ></a></td></tr>
<tr class="memitem:aea09971a681f2912e0716bace5754cdf inherit pub_methods_classhoa_1_1_processor"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aea09971a681f2912e0716bace5754cdf"></a>
virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="classhoa_1_1_processor.html#aea09971a681f2912e0716bace5754cdf">~Processor</a> () hoa_noexcept</td></tr>
<tr class="memdesc:aea09971a681f2912e0716bace5754cdf inherit pub_methods_classhoa_1_1_processor"><td class="mdescLeft"> </td><td class="mdescRight">The destructor. <br /></td></tr>
<tr class="separator:aea09971a681f2912e0716bace5754cdf inherit pub_methods_classhoa_1_1_processor"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<Dimension D, typename T><br />
class hoa::Wider< D, T ></h3>
<p>The class widens the propagation of the sounds in a sound field. </p>
<p>The class simulates fractional orders of decomposition to reduce the precision of the sound field. When the factor of widening is \(0\) sound field, only the first hamonic \(Y_{0,0}\) remains and the sound field is omni directional. By increasing the factor of widening toward \(1\), the other harmonics appears in a logarithmic way, increasing the precision of the sound field that becomes more and more directional until all the harmonics appeared. The weight of the harmonics are defined by: </p><p class="formulaDsp">
\[W_{l,m}(x) = x^l((1-x)(N-l)+1)\]
</p>
<p><br />
with \(N\) the order of decomposition, \(l\) the degree, \(m\) the azimuthal order and \(x\) the factor of widening. </p>
<p>Definition at line <a class="el" href="_hoa___wider_8hpp_source.html#l00030">30</a> of file <a class="el" href="_hoa___wider_8hpp_source.html">Hoa_Wider.hpp</a>.</p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname"><a class="el" href="classhoa_1_1_wider.html">Wider</a> </td>
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<p>The constructor. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">order</td><td>The order of decomposition. </td></tr>
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<p>Definition at line <a class="el" href="_hoa___wider_8hpp_source.html#l00036">36</a> of file <a class="el" href="_hoa___wider_8hpp_source.html">Hoa_Wider.hpp</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void setWidening </td>
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<p>This method set factor of widening. </p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">value</td><td>The factor of widening. </td></tr>
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<p>Definition at line <a class="el" href="_hoa___wider_8hpp_source.html#l00047">47</a> of file <a class="el" href="_hoa___wider_8hpp_source.html">Hoa_Wider.hpp</a>.</p>
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<p>The method performs the widening on the harmonics signal. </p>
<p>The method can be used for in-place or not-in-place processing and sample by sample. The inputs array and outputs array contains the spherical harmonics samples thus the minimum size of the array must be the number of harmonics. </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">inputs</td><td>The inputs array. </td></tr>
<tr><td class="paramname">outputs</td><td>The outputs array. </td></tr>
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<p>Reimplemented from <a class="el" href="classhoa_1_1_processor.html#a1465e992478a626e2f1310b533902edd">Processor< D, T ></a>.</p>
<p>Definition at line <a class="el" href="_hoa___wider_8hpp_source.html#l00069">69</a> of file <a class="el" href="_hoa___wider_8hpp_source.html">Hoa_Wider.hpp</a>.</p>
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