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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
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<title>audioecho</title>
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</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#gst-plugins-good-plugins-audioecho.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#gst-plugins-good-plugins-audioecho.description" class="shortcut">Description</a>
                   | 
                  <a href="#gst-plugins-good-plugins-audioecho.object-hierarchy" class="shortcut">Object Hierarchy</a>
                   | 
                  <a href="#gst-plugins-good-plugins-audioecho.properties" class="shortcut">Properties</a>
</td></tr>
</table>
<div class="refentry">
<a name="gst-plugins-good-plugins-audioecho"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-audioecho.top_of_page"></a>audioecho</span></h2>
<p>audioecho — Adds an echo or reverb effect to an audio stream</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gst-plugins-good-plugins-audioecho.synopsis"></a><h2>Synopsis</h2>
<a name="GstAudioEcho"></a><pre class="synopsis">struct              <a class="link" href="gst-plugins-good-plugins-audioecho.html#GstAudioEcho-struct" title="struct GstAudioEcho">GstAudioEcho</a>;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audioecho.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
   +----<a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstObject.html">GstObject</a>
         +----<a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html">GstElement</a>
               +----<a href="/usr/share/gtk-doc/html/gstreamer-libs-0.10/GstBaseTransform.html">GstBaseTransform</a>
                     +----<a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-0.10/gst-plugins-base-libs-gstaudiofilter.html#GstAudioFilter">GstAudioFilter</a>
                           +----GstAudioEcho
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audioecho.properties"></a><h2>Properties</h2>
<pre class="synopsis">
  "<a class="link" href="gst-plugins-good-plugins-audioecho.html#GstAudioEcho--delay" title='The "delay" property'>delay</a>"                    <span class="type">guint64</span>               : Read / Write
  "<a class="link" href="gst-plugins-good-plugins-audioecho.html#GstAudioEcho--feedback" title='The "feedback" property'>feedback</a>"                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write
  "<a class="link" href="gst-plugins-good-plugins-audioecho.html#GstAudioEcho--intensity" title='The "intensity" property'>intensity</a>"                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write
  "<a class="link" href="gst-plugins-good-plugins-audioecho.html#GstAudioEcho--max-delay" title='The "max-delay" property'>max-delay</a>"                <span class="type">guint64</span>               : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audioecho.description"></a><h2>Description</h2>
<p>
audioecho adds an echo or (simple) reverb effect to an audio stream. The echo
delay, intensity and the percentage of feedback can be configured.
</p>
<p>
For getting an echo effect you have to set the delay to a larger value,
for example 200ms and more. Everything below will result in a simple
reverb effect, which results in a slightly metallic sound.
</p>
<p>
Use the max-delay property to set the maximum amount of delay that
will be used. This can only be set before going to the PAUSED or PLAYING
state and will be set to the current delay by default.
</p>
<p>
</p>
<div class="refsect2">
<a name="idp4942440"></a><h3>Example launch line</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch filesrc location="melo1.ogg" ! audioconvert ! audioecho delay=500000000 intensity=0.6 feedback=0.4 ! audioconvert ! autoaudiosink
gst-launch filesrc location="melo1.ogg" ! decodebin ! audioconvert ! audioecho delay=50000000 intensity=0.6 feedback=0.4 ! audioconvert ! autoaudiosink
</pre></div>
</div>
<p>
</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="idp4997672"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
            <a class="link" href="gst-plugins-good-plugins-plugin-audiofx.html#plugin-audiofx">audiofx</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Sebastian Dröge &lt;sebastian.droege@collabora.co.uk&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="idp3693848"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<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-float, width=(int){ 32, 64 }, endianness=(int)1234, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<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-float, width=(int){ 32, 64 }, endianness=(int)1234, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audioecho.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstAudioEcho-struct"></a><h3>struct GstAudioEcho</h3>
<pre class="programlisting">struct GstAudioEcho;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audioecho.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstAudioEcho--delay"></a><h3>The <code class="literal">"delay"</code> property</h3>
<pre class="programlisting">  "delay"                    <span class="type">guint64</span>               : Read / Write</pre>
<p>Delay of the echo in nanoseconds.</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioEcho--feedback"></a><h3>The <code class="literal">"feedback"</code> property</h3>
<pre class="programlisting">  "feedback"                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write</pre>
<p>Amount of feedback.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioEcho--intensity"></a><h3>The <code class="literal">"intensity"</code> property</h3>
<pre class="programlisting">  "intensity"                <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write</pre>
<p>Intensity of the echo.</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioEcho--max-delay"></a><h3>The <code class="literal">"max-delay"</code> property</h3>
<pre class="programlisting">  "max-delay"                <span class="type">guint64</span>               : Read / Write</pre>
<p>Maximum delay of the echo in nanoseconds (can't be changed in PLAYING or PAUSED state).</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 1</p>
</div>
</div>
</div>
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