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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<img src="princeton.gif"> <img src="ccrma.gif"><P>
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<a class="qindex" href="index.html">Home</a> <a class="qindex" href="information.html">Information</a> <a class="qindex" href="classes.html">Classes</a> <a class="qindex" href="download.html">Download</a> <a class="qindex" href="usage.html">Usage</a> <a class="qindex" href="maillist.html">Mail List</a> <a class="qindex" href="system.html">Requirements</a> <a class="qindex" href="links.html">Links</a> <a class="qindex" href="tutorial.html">Tutorial</a></CENTER>
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<!-- Generated by Doxygen 1.2.8.1 -->
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<h1>RtWvOut Class Reference</h1>STK realtime audio output class.
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<a href="#_details">More...</a>
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<p>
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<code>#include <<a class="el" href="RtWvOut_8h-source.html">RtWvOut.h</a>></code>
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<p>
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<p>Inheritance diagram for RtWvOut::
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<p><center><img src="classRtWvOut.gif" usemap="#RtWvOut_map" border="0"></center>
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<map name="RtWvOut_map">
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<area href="classWvOut.html" alt="WvOut" shape="rect" coords="0,56,61,80">
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<area href="classStk.html" alt="Stk" shape="rect" coords="0,0,61,24">
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</map>
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<a href="classRtWvOut-members.html">List of all members.</a><table border=0 cellpadding=0 cellspacing=0>
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<tr><td colspan=2><br><h2>Public Methods</h2></td></tr>
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<tr><td nowrap align=right valign=top> </td><td valign=bottom><a class="el" href="classRtWvOut.html#a0">RtWvOut</a> (unsigned int nChannels=1, MY_FLOAT sampleRate=Stk::sampleRate(), int device=0, int bufferFrames=RT_BUFFER_SIZE, int nBuffers=4)</td></tr>
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<tr><td> </td><td><font size=-1><em>Default constructor.</em> <a href="#a0">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a1" doxytag="RtWvOut::~RtWvOut"></a>
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</td><td valign=bottom><a class="el" href="classRtWvOut.html#a1">~RtWvOut</a> ()</td></tr>
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<tr><td> </td><td><font size=-1><em>Class destructor.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classRtWvOut.html#a2">start</a> (void)</td></tr>
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<tr><td> </td><td><font size=-1><em>Start the audio output stream.</em> <a href="#a2">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classRtWvOut.html#a3">stop</a> (void)</td></tr>
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<tr><td> </td><td><font size=-1><em>Stop the audio output stream.</em> <a href="#a3">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a4" doxytag="RtWvOut::getFrames"></a>
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unsigned long </td><td valign=bottom><a class="el" href="classRtWvOut.html#a4">getFrames</a> (void) const</td></tr>
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<tr><td> </td><td><font size=-1><em>Return the number of sample frames output.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top><a name="a5" doxytag="RtWvOut::getTime"></a>
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MY_FLOAT </td><td valign=bottom><a class="el" href="classRtWvOut.html#a5">getTime</a> (void) const</td></tr>
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<tr><td> </td><td><font size=-1><em>Return the number of seconds of data output.</em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classRtWvOut.html#a6">tick</a> (const MY_FLOAT sample)</td></tr>
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<tr><td> </td><td><font size=-1><em>Output a single sample to all channels in a sample frame.</em> <a href="#a6">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classRtWvOut.html#a7">tick</a> (const MY_FLOAT *vector, unsigned int vectorSize)</td></tr>
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<tr><td> </td><td><font size=-1><em>Output each sample in <em>vector</em> to all channels in <em>vectorSize</em> sample frames.</em> <a href="#a7">More...</a><em></em></font><br><br></td></tr>
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<tr><td nowrap align=right valign=top>void </td><td valign=bottom><a class="el" href="classRtWvOut.html#a8">tickFrame</a> (const MY_FLOAT *frameVector, unsigned int frames=1)</td></tr>
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<tr><td> </td><td><font size=-1><em>Output the <em>frameVector</em> of sample frames of the given length.</em> <a href="#a8">More...</a><em></em></font><br><br></td></tr>
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</table>
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<hr><a name="_details"></a><h2>Detailed Description</h2>
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STK realtime audio output class.
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<p>
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This class provides a simplified interface to <a class="el" href="classRtAudio.html">RtAudio</a> for realtime audio output. It is a protected subclass of <a class="el" href="classWvOut.html">WvOut</a>.
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<p>
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RtWvOut supports multi-channel data in interleaved format. It is important to distinguish the <a class="el" href="classRtWvOut.html#a6">tick</a>() methods, which output single samples to all channels in a sample frame, from the <a class="el" href="classRtWvOut.html#a8">tickFrame</a>() method, which takes a pointer to multi-channel sample frame data.
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<p>
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by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
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<p>
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<hr><h2>Constructor & Destructor Documentation</h2>
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<a name="a0" doxytag="RtWvOut::RtWvOut"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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RtWvOut::RtWvOut (
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</b></td>
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<td valign="bottom"><b>
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unsigned int <em>nChannels</em> = 1,
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</b></td>
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</tr>
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<tr>
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<td></td>
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<td><b>
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MY_FLOAT <em>sampleRate</em> = Stk::sampleRate(),
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</b></td>
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</tr>
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<tr>
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<td></td>
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<td><b>
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int <em>device</em> = 0,
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</b></td>
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</tr>
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<tr>
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<td></td>
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<td><b>
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int <em>bufferFrames</em> = RT_BUFFER_SIZE,
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</b></td>
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</tr>
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<tr>
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<td></td>
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<td><b>
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int <em>nBuffers</em> = 4 )
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Default constructor.
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<p>
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The <em>device</em> argument is passed to <a class="el" href="classRtAudio.html">RtAudio</a> during instantiation. The default value (zero) will select the default device on your system or the first device found meeting the specified parameters. On systems with multiple soundcards/devices, values greater than zero can be specified in accordance with the order that the devices are enumerated by the underlying audio API. The default buffer size of RT_BUFFER_SIZE is defined in Stk.h. An <a class="el" href="classStkError.html">StkError</a> will be thrown if an error occurs duing instantiation. </td>
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</tr>
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</table>
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<hr><h2>Member Function Documentation</h2>
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<a name="a2" doxytag="RtWvOut::start"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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void RtWvOut::start (
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</b></td>
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<td valign="bottom"><b>
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void )
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Start the audio output stream.
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<p>
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The stream is started automatically, if necessary, when a <a class="el" href="classRtWvOut.html#a6">tick</a>() or tickFrame method is called. </td>
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</tr>
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</table>
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<a name="a3" doxytag="RtWvOut::stop"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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void RtWvOut::stop (
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</b></td>
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<td valign="bottom"><b>
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void )
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Stop the audio output stream.
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<p>
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It may be necessary to use this method to avoid undesireable audio buffer cycling if you wish to temporarily stop audio output. </td>
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</tr>
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</table>
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<a name="a6" doxytag="RtWvOut::tick"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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void RtWvOut::tick (
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</b></td>
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<td valign="bottom"><b>
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const MY_FLOAT <em>sample</em> )<code> [virtual]</code>
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Output a single sample to all channels in a sample frame.
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<p>
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An <a class="el" href="classStkError.html">StkError</a> will be thrown if an error occurs during output.
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<p>
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Reimplemented from <a class="el" href="classWvOut.html#a7">WvOut</a>. </td>
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</tr>
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</table>
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<a name="a7" doxytag="RtWvOut::tick"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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void RtWvOut::tick (
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</b></td>
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<td valign="bottom"><b>
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const MY_FLOAT * <em>vector</em>,
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</b></td>
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</tr>
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<tr>
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<td></td>
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<td><b>
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unsigned int <em>vectorSize</em> )<code> [virtual]</code>
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Output each sample in <em>vector</em> to all channels in <em>vectorSize</em> sample frames.
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<p>
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An <a class="el" href="classStkError.html">StkError</a> will be thrown if an error occurs during output.
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<p>
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Reimplemented from <a class="el" href="classWvOut.html#a8">WvOut</a>. </td>
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</tr>
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</table>
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<a name="a8" doxytag="RtWvOut::tickFrame"></a><p>
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<table width="100%" cellpadding="2" cellspacing="0" border="0">
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<tr>
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<td class="md">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td nowrap valign="top"><b>
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void RtWvOut::tickFrame (
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</b></td>
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<td valign="bottom"><b>
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const MY_FLOAT * <em>frameVector</em>,
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</b></td>
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</tr>
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<tr>
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<td></td>
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<td><b>
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unsigned int <em>frames</em> = 1 )<code> [virtual]</code>
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</b></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing=5 cellpadding=0 border=0>
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<tr>
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<td>
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</td>
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<td>
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<p>
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Output the <em>frameVector</em> of sample frames of the given length.
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<p>
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An <a class="el" href="classStkError.html">StkError</a> will be thrown if an error occurs during output.
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<p>
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Reimplemented from <a class="el" href="classWvOut.html#a9">WvOut</a>. </td>
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</tr>
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</table>
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<hr>The documentation for this class was generated from the following file:<ul>
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<li><a class="el" href="RtWvOut_8h-source.html">RtWvOut.h</a></ul>
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<HR>
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<table>
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<tr><td><A HREF="http://www-ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
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<tr><td>©1995-2002 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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</table>
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