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<HTML>
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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<div class="navpath"><a class="el" href="namespacestk.html">stk</a>::<a class="el" href="classstk_1_1VoicForm.html">VoicForm</a>
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<h1>stk::VoicForm Class Reference</h1><!-- doxytag: class="stk::VoicForm" --><!-- doxytag: inherits="stk::Instrmnt" -->
<p>Four formant synthesis instrument.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="VoicForm_8h_source.html">VoicForm.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for stk::VoicForm:</div>
<div class="dynsection">
<div class="center">
<img src="classstk_1_1VoicForm.png" usemap="#stk::VoicForm_map" alt=""/>
<map id="stk::VoicForm_map" name="stk::VoicForm_map">
<area href="classstk_1_1Instrmnt.html" alt="stk::Instrmnt" shape="rect" coords="0,56,88,80"/>
<area href="classstk_1_1Stk.html" alt="stk::Stk" shape="rect" coords="0,0,88,24"/>
</map>
</div>
</div>
<p><a href="classstk_1_1VoicForm-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a9462c5ba6b627f5508c336153510de4c">VoicForm</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Class constructor. <a href="#a9462c5ba6b627f5508c336153510de4c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a298da1434bf38e6bf83c2f9db78f01ac"></a><!-- doxytag: member="stk::VoicForm::~VoicForm" ref="a298da1434bf38e6bf83c2f9db78f01ac" args="(void)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a298da1434bf38e6bf83c2f9db78f01ac">~VoicForm</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Class destructor. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad62987970200d4e9720190b884fb689d"></a><!-- doxytag: member="stk::VoicForm::clear" ref="ad62987970200d4e9720190b884fb689d" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#ad62987970200d4e9720190b884fb689d">clear</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Reset and clear all internal state. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aeb2b7ffe130e016c847cd7aebfd628ee"></a><!-- doxytag: member="stk::VoicForm::setFrequency" ref="aeb2b7ffe130e016c847cd7aebfd628ee" args="(StkFloat frequency)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#aeb2b7ffe130e016c847cd7aebfd628ee">setFrequency</a> (StkFloat frequency)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set instrument parameters for a particular frequency. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6ee860f09b9598c1251a9653b50139bb"></a><!-- doxytag: member="stk::VoicForm::setPhoneme" ref="a6ee860f09b9598c1251a9653b50139bb" args="(const char *phoneme)" -->
bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a6ee860f09b9598c1251a9653b50139bb">setPhoneme</a> (const char *phoneme)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set instrument parameters for the given phoneme. Returns false if phoneme not found. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="acd504d4d29134a778b08b2229dd0c0c9"></a><!-- doxytag: member="stk::VoicForm::setVoiced" ref="acd504d4d29134a778b08b2229dd0c0c9" args="(StkFloat vGain)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#acd504d4d29134a778b08b2229dd0c0c9">setVoiced</a> (StkFloat vGain)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the voiced component gain. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa4fa86def4ded3698f75c0e4bdbdf638"></a><!-- doxytag: member="stk::VoicForm::setUnVoiced" ref="aa4fa86def4ded3698f75c0e4bdbdf638" args="(StkFloat nGain)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#aa4fa86def4ded3698f75c0e4bdbdf638">setUnVoiced</a> (StkFloat nGain)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the unvoiced component gain. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a14d8323edda6e8c82ab39d633b8064a8"></a><!-- doxytag: member="stk::VoicForm::setFilterSweepRate" ref="a14d8323edda6e8c82ab39d633b8064a8" args="(unsigned int whichOne, StkFloat rate)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a14d8323edda6e8c82ab39d633b8064a8">setFilterSweepRate</a> (unsigned int whichOne, StkFloat rate)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the sweep rate for a particular formant filter (0-3). <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2e4adfe6542f6103a8ac85c7ea2f2ce5"></a><!-- doxytag: member="stk::VoicForm::setPitchSweepRate" ref="a2e4adfe6542f6103a8ac85c7ea2f2ce5" args="(StkFloat rate)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a2e4adfe6542f6103a8ac85c7ea2f2ce5">setPitchSweepRate</a> (StkFloat rate)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set voiced component pitch sweep rate. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a425c88ad505e260604771cfe3de6ed47"></a><!-- doxytag: member="stk::VoicForm::speak" ref="a425c88ad505e260604771cfe3de6ed47" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a425c88ad505e260604771cfe3de6ed47">speak</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Start the voice. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a33cacda32d42f3282312043c54b3cee7"></a><!-- doxytag: member="stk::VoicForm::quiet" ref="a33cacda32d42f3282312043c54b3cee7" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a33cacda32d42f3282312043c54b3cee7">quiet</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Stop the voice. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a9f8431ef3c7588c0d032e821d4dd1ad9"></a><!-- doxytag: member="stk::VoicForm::noteOn" ref="a9f8431ef3c7588c0d032e821d4dd1ad9" args="(StkFloat frequency, StkFloat amplitude)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a9f8431ef3c7588c0d032e821d4dd1ad9">noteOn</a> (StkFloat frequency, StkFloat amplitude)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Start a note with the given frequency and amplitude. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab9e54927b3bec7b9727c32791bbb9b19"></a><!-- doxytag: member="stk::VoicForm::noteOff" ref="ab9e54927b3bec7b9727c32791bbb9b19" args="(StkFloat amplitude)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#ab9e54927b3bec7b9727c32791bbb9b19">noteOff</a> (StkFloat amplitude)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Stop a note with the given amplitude (speed of decay). <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a427ca45d3e44e093c11f16e30fc2b550"></a><!-- doxytag: member="stk::VoicForm::controlChange" ref="a427ca45d3e44e093c11f16e30fc2b550" args="(int number, StkFloat value)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a427ca45d3e44e093c11f16e30fc2b550">controlChange</a> (int number, StkFloat value)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Perform the control change specified by <em>number</em> and <em>value</em> (0.0 - 128.0). <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac12629d2730f582e405b221e1d7b6f29"></a><!-- doxytag: member="stk::VoicForm::tick" ref="ac12629d2730f582e405b221e1d7b6f29" args="(unsigned int channel=0)" -->
StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#ac12629d2730f582e405b221e1d7b6f29">tick</a> (unsigned int channel=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Compute and return one output sample. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1VoicForm.html#a619d2995894216181c2dc38fd863fe33">tick</a> (<a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &frames, unsigned int channel=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Fill a channel of the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> object with computed outputs. <a href="#a619d2995894216181c2dc38fd863fe33"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Four formant synthesis instrument. </p>
<p>This instrument contains an excitation singing wavetable (looping wave with random and periodic vibrato, smoothing on frequency, etc.), excitation noise, and four sweepable complex resonances.</p>
<p>Measured formant data is included, and enough data is there to support either parallel or cascade synthesis. In the floating point case cascade synthesis is the most natural so that's what you'll find here.</p>
<p>Control Change Numbers:</p>
<ul>
<li>Voiced/Unvoiced Mix = 2</li>
<li>Vowel/Phoneme Selection = 4</li>
<li>Vibrato Frequency = 11</li>
<li>Vibrato Gain = 1</li>
<li>Loudness (Spectral Tilt) = 128</li>
</ul>
<p>by Perry R. Cook and Gary P. Scavone, 1995-2012. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a9462c5ba6b627f5508c336153510de4c"></a><!-- doxytag: member="stk::VoicForm::VoicForm" ref="a9462c5ba6b627f5508c336153510de4c" args="(void)" -->
<div class="memitem">
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<td class="memname">stk::VoicForm::VoicForm </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Class constructor. </p>
<p>An <a class="el" href="classstk_1_1StkError.html" title="STK error handling class.">StkError</a> will be thrown if the rawwave path is incorrectly set. </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a619d2995894216181c2dc38fd863fe33"></a><!-- doxytag: member="stk::VoicForm::tick" ref="a619d2995894216181c2dc38fd863fe33" args="(StkFrames &frames, unsigned int channel=0)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> & stk::VoicForm::tick </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> & </td>
<td class="paramname"> <em>frames</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>channel</em> = <code>0</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [inline, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Fill a channel of the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> object with computed outputs. </p>
<p>The <code>channel</code> argument must be less than the number of channels in the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> argument (the first channel is specified by 0). However, range checking is only performed if _STK_DEBUG_ is defined during compilation, in which case an out-of-range value will trigger an <a class="el" href="classstk_1_1StkError.html" title="STK error handling class.">StkError</a> exception. </p>
<p>Implements <a class="el" href="classstk_1_1Instrmnt.html#a34c6733ca145763462d9e44ae3c772b6">stk::Instrmnt</a>.</p>
<p><div class="fragment"><pre class="fragment"><a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nChannels = lastFrame_.channels();
<a name="l00135"></a>00135 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00136"></a>00136 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel > frames.channels() - nChannels ) {
<a name="l00137"></a>00137 oStream_ << <span class="stringliteral">"VoicForm::tick(): channel and StkFrames arguments are incompatible!"</span>;
<a name="l00138"></a>00138 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140 <span class="preprocessor">#endif</span>
<a name="l00141"></a>00141 <span class="preprocessor"></span>
<a name="l00142"></a>00142 StkFloat *samples = &frames[channel];
<a name="l00143"></a>00143 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j, hop = frames.channels() - nChannels;
<a name="l00144"></a>00144 <span class="keywordflow">if</span> ( nChannels == 1 ) {
<a name="l00145"></a>00145 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<frames.frames(); i++, samples += hop )
<a name="l00146"></a>00146 *samples++ = <a class="code" href="classstk_1_1VoicForm.html#ac12629d2730f582e405b221e1d7b6f29" title="Compute and return one output sample.">tick</a>();
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 <span class="keywordflow">else</span> {
<a name="l00149"></a>00149 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<frames.frames(); i++, samples += hop ) {
<a name="l00150"></a>00150 *samples++ = <a class="code" href="classstk_1_1VoicForm.html#ac12629d2730f582e405b221e1d7b6f29" title="Compute and return one output sample.">tick</a>();
<a name="l00151"></a>00151 <span class="keywordflow">for</span> ( j=1; j<nChannels; j++ )
<a name="l00152"></a>00152 *samples++ = lastFrame_[j];
<a name="l00153"></a>00153 }
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="keywordflow">return</span> frames;
<a name="l00157"></a>00157 }
</pre></div></p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="VoicForm_8h_source.html">VoicForm.h</a></li>
</ul>
</div>
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<table>
<tr><td><A HREF="http://ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
<tr><td>©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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