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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>GStreamer Buzztard Reference Manual: GstBtSimSyn</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 
                  <a href="#GstBtSimSyn.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 
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<div class="refentry">
<a name="GstBtSimSyn"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="GstBtSimSyn.top_of_page"></a>GstBtSimSyn</span></h2>
<p>GstBtSimSyn — simple monophonic audio synthesizer</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="GstBtSimSyn.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><span class="type">gdouble</span></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--cut-off" title="The “cut-off” property">cut-off</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">gdouble</span></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--decay" title="The “decay” property">decay</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="GstBtSimSyn.html#GstBtSimSynFilter" title="enum GstBtSimSynFilter"><span class="type">GstBtSimSynFilter</span></a></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--filter" title="The “filter” property">filter</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="gst-buzztard-GstBtMusicEnums.html#GstBtNote" title="enum GstBtNote"><span class="type">GstBtNote</span></a></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--note" title="The “note” property">note</a></td>
<td class="property_flags">Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">gdouble</span></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--resonance" title="The “resonance” property">resonance</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">gdouble</span></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--volume" title="The “volume” property">volume</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="GstBtSimSyn.html#GstBtSimSynWave" title="enum GstBtSimSynWave"><span class="type">GstBtSimSynWave</span></a></td>
<td class="property_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn--wave" title="The “wave” property">wave</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSyn-struct" title="struct GstBtSimSyn">GstBtSimSyn</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSynFilter" title="enum GstBtSimSynFilter">GstBtSimSynFilter</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="GstBtSimSyn.html#GstBtSimSynWave" title="enum GstBtSimSynWave">GstBtSimSynWave</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    GObject
    <span class="lineart">╰──</span> GstObject
        <span class="lineart">╰──</span> GstElement
            <span class="lineart">╰──</span> GstBaseSrc
                <span class="lineart">╰──</span> GstBtSimSyn
</pre>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GstBtSimSyn implements
 <a class="link" href="GstBtPropertyMeta.html" title="GstBtPropertyMeta">GstBtPropertyMeta</a>,  <a class="link" href="GstBtTempo.html" title="GstBtTempo">GstBtTempo</a> and  <a class="link" href="GstPreset.html" title="GstPreset">GstPreset</a>.</p>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.description"></a><h2>Description</h2>
<p>Simple monophonic audio synthesizer with a decay envelope and a
state-variable filter.</p>
<div class="refsect2">
<a name="id-1.5.5.7.3"></a><h3>Example launch line</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch simsyn num-buffers=1000 note="c-4" ! autoaudiosink
</pre></div> Render a sine wave tone.
</div>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.functions_details"></a><h2>Functions</h2>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstBtSimSyn-struct"></a><h3>struct GstBtSimSyn</h3>
<pre class="programlisting">struct GstBtSimSyn;</pre>
<p>Class instance data.</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSynFilter"></a><h3>enum GstBtSimSynFilter</h3>
<p>Filter types.</p>
<div class="refsect3">
<a name="id-1.5.5.9.3.4"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-FILTER-NONE:CAPS"></a>GSTBT_SIM_SYN_FILTER_NONE</p></td>
<td class="enum_member_description">
<p>no filtering</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-FILTER-LOWPASS:CAPS"></a>GSTBT_SIM_SYN_FILTER_LOWPASS</p></td>
<td class="enum_member_description">
<p>low pass</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-FILTER-HIPASS:CAPS"></a>GSTBT_SIM_SYN_FILTER_HIPASS</p></td>
<td class="enum_member_description">
<p>high pass</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-FILTER-BANDPASS:CAPS"></a>GSTBT_SIM_SYN_FILTER_BANDPASS</p></td>
<td class="enum_member_description">
<p>band pass</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-FILTER-BANDSTOP:CAPS"></a>GSTBT_SIM_SYN_FILTER_BANDSTOP</p></td>
<td class="enum_member_description">
<p>band stop (notch)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSynWave"></a><h3>enum GstBtSimSynWave</h3>
<p>Oscillator wave forms.</p>
<div class="refsect3">
<a name="id-1.5.5.9.4.4"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-SINE:CAPS"></a>GSTBT_SIM_SYN_WAVE_SINE</p></td>
<td class="enum_member_description">
<p>sine wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-SQUARE:CAPS"></a>GSTBT_SIM_SYN_WAVE_SQUARE</p></td>
<td class="enum_member_description">
<p>square wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-SAW:CAPS"></a>GSTBT_SIM_SYN_WAVE_SAW</p></td>
<td class="enum_member_description">
<p>saw wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-TRIANGLE:CAPS"></a>GSTBT_SIM_SYN_WAVE_TRIANGLE</p></td>
<td class="enum_member_description">
<p>triangle wave</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-SILENCE:CAPS"></a>GSTBT_SIM_SYN_WAVE_SILENCE</p></td>
<td class="enum_member_description">
<p>silence</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-WHITE-NOISE:CAPS"></a>GSTBT_SIM_SYN_WAVE_WHITE_NOISE</p></td>
<td class="enum_member_description">
<p>white noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-PINK-NOISE:CAPS"></a>GSTBT_SIM_SYN_WAVE_PINK_NOISE</p></td>
<td class="enum_member_description">
<p>pink noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-SINE-TAB:CAPS"></a>GSTBT_SIM_SYN_WAVE_SINE_TAB</p></td>
<td class="enum_member_description">
<p>sine wave (precalculated)</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-GAUSSIAN-WHITE-NOISE:CAPS"></a>GSTBT_SIM_SYN_WAVE_GAUSSIAN_WHITE_NOISE</p></td>
<td class="enum_member_description">
<p>white (zero mean) Gaussian noise;  volume sets the standard deviation of the noise in units of the range of values of the sample type, e.g. volume=0.1 produces noise with a standard deviation of 0.1*32767=3277 with 16-bit integer samples, or 0.1*1.0=0.1 with floating-point samples.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-RED-NOISE:CAPS"></a>GSTBT_SIM_SYN_WAVE_RED_NOISE</p></td>
<td class="enum_member_description">
<p>red (brownian) noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-BLUE-NOISE:CAPS"></a>GSTBT_SIM_SYN_WAVE_BLUE_NOISE</p></td>
<td class="enum_member_description">
<p>spectraly inverted pink noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GSTBT-SIM-SYN-WAVE-VIOLET-NOISE:CAPS"></a>GSTBT_SIM_SYN_WAVE_VIOLET_NOISE</p></td>
<td class="enum_member_description">
<p>spectraly inverted red (brownian) noise</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="GstBtSimSyn.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstBtSimSyn--cut-off"></a><h3>The <code class="literal">“cut-off”</code> property</h3>
<pre class="programlisting">  “cut-off”                  <span class="type">gdouble</span></pre>
<p>Audio filter cut-off frequency.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.8</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSyn--decay"></a><h3>The <code class="literal">“decay”</code> property</h3>
<pre class="programlisting">  “decay”                    <span class="type">gdouble</span></pre>
<p>Volume decay of the tone in seconds.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0.001,4]</p>
<p>Default value: 0.5</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSyn--filter"></a><h3>The <code class="literal">“filter”</code> property</h3>
<pre class="programlisting">  “filter”                   <a class="link" href="GstBtSimSyn.html#GstBtSimSynFilter" title="enum GstBtSimSynFilter"><span class="type">GstBtSimSynFilter</span></a></pre>
<p>Type of audio filter.</p>
<p>Flags: Read / Write</p>
<p>Default value: LowPass</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSyn--note"></a><h3>The <code class="literal">“note”</code> property</h3>
<pre class="programlisting">  “note”                     <a class="link" href="gst-buzztard-GstBtMusicEnums.html#GstBtNote" title="enum GstBtNote"><span class="type">GstBtNote</span></a></pre>
<p>Musical note (e.g. 'c-3', 'd#4').</p>
<p>Flags: Write</p>
<p>Default value: NONE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSyn--resonance"></a><h3>The <code class="literal">“resonance”</code> property</h3>
<pre class="programlisting">  “resonance”                <span class="type">gdouble</span></pre>
<p>Audio filter resonance.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0.7,25]</p>
<p>Default value: 0.8</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSyn--volume"></a><h3>The <code class="literal">“volume”</code> property</h3>
<pre class="programlisting">  “volume”                   <span class="type">gdouble</span></pre>
<p>Volume of tone.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.8</p>
</div>
<hr>
<div class="refsect2">
<a name="GstBtSimSyn--wave"></a><h3>The <code class="literal">“wave”</code> property</h3>
<pre class="programlisting">  “wave”                     <a class="link" href="GstBtSimSyn.html#GstBtSimSynWave" title="enum GstBtSimSynWave"><span class="type">GstBtSimSynWave</span></a></pre>
<p>Oscillator waveform.</p>
<p>Flags: Read / Write</p>
<p>Default value: Sine</p>
</div>
</div>
</div>
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