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<a href="#gst-plugins-good-plugins-equalizer-3bands.synopsis" class="shortcut">Top</a>
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<a href="#gst-plugins-good-plugins-equalizer-3bands.description" class="shortcut">Description</a>
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<a href="#gst-plugins-good-plugins-equalizer-3bands.object-hierarchy" class="shortcut">Object Hierarchy</a>
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<a href="#gst-plugins-good-plugins-equalizer-3bands.implemented-interfaces" class="shortcut">Implemented Interfaces</a>
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<a href="#gst-plugins-good-plugins-equalizer-3bands.properties" class="shortcut">Properties</a>
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<div class="refentry">
<a name="gst-plugins-good-plugins-equalizer-3bands"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
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<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-equalizer-3bands.top_of_page"></a>equalizer-3bands</span></h2>
<p>equalizer-3bands — Direct Form 3 band IIR equalizer</p>
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<div class="refsynopsisdiv">
<a name="gst-plugins-good-plugins-equalizer-3bands.synopsis"></a><h2>Synopsis</h2>
<a name="GstIirEqualizer3Bands"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-good-plugins-equalizer-3bands.html#GstIirEqualizer3Bands-struct" title="struct GstIirEqualizer3Bands">GstIirEqualizer3Bands</a>;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-equalizer-3bands.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
+----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseTransform.html">GstBaseTransform</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstaudiofilter.html#GstAudioFilter">GstAudioFilter</a>
+----<a class="link" href="GstIirEqualizer.html" title="GstIirEqualizer">GstIirEqualizer</a>
+----GstIirEqualizer3Bands
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-equalizer-3bands.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GstIirEqualizer3Bands implements
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstChildProxy.html">GstChildProxy</a> and <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPreset.html">GstPreset</a>.</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-equalizer-3bands.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="gst-plugins-good-plugins-equalizer-3bands.html#GstIirEqualizer3Bands--band0" title='The "band0" property'>band0</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write
"<a class="link" href="gst-plugins-good-plugins-equalizer-3bands.html#GstIirEqualizer3Bands--band1" title='The "band1" property'>band1</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write
"<a class="link" href="gst-plugins-good-plugins-equalizer-3bands.html#GstIirEqualizer3Bands--band2" title='The "band2" property'>band2</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-equalizer-3bands.description"></a><h2>Description</h2>
<p>
The 3-band equalizer element allows to change the gain of a low frequency,
medium frequency and high frequency band.
</p>
<p>
</p>
<div class="refsect2">
<a name="idp7224000"></a><h3>Example launch line</h3>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
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<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> filesrc location<span class="gtkdoc opt">=</span>song<span class="gtkdoc opt">.</span>ogg <span class="gtkdoc opt">!</span> oggdemux <span class="gtkdoc opt">!</span> vorbisdec <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> equalizer<span class="gtkdoc opt">-</span><span class="number">3</span>bands band1<span class="gtkdoc opt">=</span><span class="number">6.0</span> <span class="gtkdoc opt">!</span> alsasink</pre></td>
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This raises the volume of the 2nd band, which is at 1110 Hz, by 6 db.
</div>
<p>
</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="idp7630416"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-good-plugins-plugin-equalizer.html#plugin-equalizer">equalizer</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Stefan Kost &lt;ensonic@users.sf.net&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Effect/Audio</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="idp13362720"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>audio/x-raw, format=(string){ S16LE, F32LE, F64LE }, rate=(int)[ 1000, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>audio/x-raw, format=(string){ S16LE, F32LE, F64LE }, rate=(int)[ 1000, 2147483647 ], channels=(int)[ 1, 2147483647 ], layout=(string)interleaved</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-equalizer-3bands.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstIirEqualizer3Bands-struct"></a><h3>struct GstIirEqualizer3Bands</h3>
<pre class="programlisting">struct GstIirEqualizer3Bands;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-equalizer-3bands.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstIirEqualizer3Bands--band0"></a><h3>The <code class="literal">"band0"</code> property</h3>
<pre class="programlisting"> "band0" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write</pre>
<p>gain for the frequency band 100 Hz, ranging from -24.0 to +12.0.</p>
<p>Allowed values: [-24,12]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIirEqualizer3Bands--band1"></a><h3>The <code class="literal">"band1"</code> property</h3>
<pre class="programlisting"> "band1" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write</pre>
<p>gain for the frequency band 1100 Hz, ranging from -24.0 to +12.0.</p>
<p>Allowed values: [-24,12]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIirEqualizer3Bands--band2"></a><h3>The <code class="literal">"band2"</code> property</h3>
<pre class="programlisting"> "band2" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> : Read / Write</pre>
<p>gain for the frequency band 11 kHz, ranging from -24.0 to +12.0.</p>
<p>Allowed values: [-24,12]</p>
<p>Default value: 0</p>
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