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<HTML>
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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<!-- Generated by Doxygen 1.6.2 -->
<div class="navpath"><a class="el" href="namespacestk.html">stk</a>::<a class="el" href="classstk_1_1BlowBotl.html">BlowBotl</a>
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<h1>stk::BlowBotl Class Reference</h1><!-- doxytag: class="stk::BlowBotl" --><!-- doxytag: inherits="stk::Instrmnt" -->
<p>STK blown bottle instrument class.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="BlowBotl_8h_source.html">BlowBotl.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for stk::BlowBotl:</div>
<div class="dynsection">
<div class="center">
<img src="classstk_1_1BlowBotl.png" usemap="#stk::BlowBotl_map" alt=""/>
<map id="stk::BlowBotl_map" name="stk::BlowBotl_map">
<area href="classstk_1_1Instrmnt.html" alt="stk::Instrmnt" shape="rect" coords="0,56,81,80"/>
<area href="classstk_1_1Stk.html" alt="stk::Stk" shape="rect" coords="0,0,81,24"/>
</map>
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<p><a href="classstk_1_1BlowBotl-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_1BlowBotl.html#aa505b4fc32ffe974b5840163395c321c">BlowBotl</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Class constructor. <a href="#aa505b4fc32ffe974b5840163395c321c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="adae826b0487471da1779761b0f885cb8"></a><!-- doxytag: member="stk::BlowBotl::~BlowBotl" ref="adae826b0487471da1779761b0f885cb8" args="(void)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#adae826b0487471da1779761b0f885cb8">~BlowBotl</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="a271161f45e0a706d8ccd299f9aaf2ada"></a><!-- doxytag: member="stk::BlowBotl::clear" ref="a271161f45e0a706d8ccd299f9aaf2ada" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a271161f45e0a706d8ccd299f9aaf2ada">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="a75b679cd641bb4bae9bc4ac3021a03e3"></a><!-- doxytag: member="stk::BlowBotl::setFrequency" ref="a75b679cd641bb4bae9bc4ac3021a03e3" args="(StkFloat frequency)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a75b679cd641bb4bae9bc4ac3021a03e3">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="a926d428669edf9c87a1f88faf01550c4"></a><!-- doxytag: member="stk::BlowBotl::startBlowing" ref="a926d428669edf9c87a1f88faf01550c4" args="(StkFloat amplitude, StkFloat rate)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a926d428669edf9c87a1f88faf01550c4">startBlowing</a> (StkFloat amplitude, StkFloat rate)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Apply breath velocity to instrument with given amplitude and rate of increase. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a91a174c3501aafbbfe6841f6915fe4f3"></a><!-- doxytag: member="stk::BlowBotl::stopBlowing" ref="a91a174c3501aafbbfe6841f6915fe4f3" args="(StkFloat rate)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a91a174c3501aafbbfe6841f6915fe4f3">stopBlowing</a> (StkFloat rate)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Decrease breath velocity with given rate of decrease. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afaf3f964cbdf99eddd7af99626169c02"></a><!-- doxytag: member="stk::BlowBotl::noteOn" ref="afaf3f964cbdf99eddd7af99626169c02" args="(StkFloat frequency, StkFloat amplitude)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#afaf3f964cbdf99eddd7af99626169c02">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="a132c87a453ecf25301243dc62f57f587"></a><!-- doxytag: member="stk::BlowBotl::noteOff" ref="a132c87a453ecf25301243dc62f57f587" args="(StkFloat amplitude)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a132c87a453ecf25301243dc62f57f587">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="a21a4b2aaaac7afcc67b4abe5ed833bfd"></a><!-- doxytag: member="stk::BlowBotl::controlChange" ref="a21a4b2aaaac7afcc67b4abe5ed833bfd" args="(int number, StkFloat value)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a21a4b2aaaac7afcc67b4abe5ed833bfd">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="a68501c2422994c8dca50086b3d944119"></a><!-- doxytag: member="stk::BlowBotl::tick" ref="a68501c2422994c8dca50086b3d944119" args="(unsigned int channel=0)" -->
StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1BlowBotl.html#a68501c2422994c8dca50086b3d944119">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_1BlowBotl.html#a49e1f536d821a8b2bf133533cb4bc93e">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="#a49e1f536d821a8b2bf133533cb4bc93e"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>STK blown bottle instrument class. </p>
<p>This class implements a helmholtz resonator (biquad filter) with a polynomial jet excitation (a la Cook).</p>
<p>Control Change Numbers:</p>
<ul>
<li><a class="el" href="classstk_1_1Noise.html" title="STK noise generator.">Noise</a> Gain = 4</li>
<li>Vibrato Frequency = 11</li>
<li>Vibrato Gain = 1</li>
<li>Volume = 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="aa505b4fc32ffe974b5840163395c321c"></a><!-- doxytag: member="stk::BlowBotl::BlowBotl" ref="aa505b4fc32ffe974b5840163395c321c" args="(void)" -->
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<td class="memname">stk::BlowBotl::BlowBotl </td>
<td>(</td>
<td class="paramtype">void </td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
</table>
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<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="a49e1f536d821a8b2bf133533cb4bc93e"></a><!-- doxytag: member="stk::BlowBotl::tick" ref="a49e1f536d821a8b2bf133533cb4bc93e" args="(StkFrames &frames, unsigned int channel=0)" -->
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<td class="memname"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> & stk::BlowBotl::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>
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<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="l00116"></a>00116 {
<a name="l00117"></a>00117 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nChannels = lastFrame_.channels();
<a name="l00118"></a>00118 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00119"></a>00119 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel > frames.channels() - nChannels ) {
<a name="l00120"></a>00120 oStream_ << <span class="stringliteral">"BlowBotl::tick(): channel and StkFrames arguments are incompatible!"</span>;
<a name="l00121"></a>00121 <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="l00122"></a>00122 }
<a name="l00123"></a>00123 <span class="preprocessor">#endif</span>
<a name="l00124"></a>00124 <span class="preprocessor"></span>
<a name="l00125"></a>00125 StkFloat *samples = &frames[channel];
<a name="l00126"></a>00126 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j, hop = frames.channels() - nChannels;
<a name="l00127"></a>00127 <span class="keywordflow">if</span> ( nChannels == 1 ) {
<a name="l00128"></a>00128 <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="l00129"></a>00129 *samples++ = <a class="code" href="classstk_1_1BlowBotl.html#a68501c2422994c8dca50086b3d944119" title="Compute and return one output sample.">tick</a>();
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 <span class="keywordflow">else</span> {
<a name="l00132"></a>00132 <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="l00133"></a>00133 *samples++ = <a class="code" href="classstk_1_1BlowBotl.html#a68501c2422994c8dca50086b3d944119" title="Compute and return one output sample.">tick</a>();
<a name="l00134"></a>00134 <span class="keywordflow">for</span> ( j=1; j<nChannels; j++ )
<a name="l00135"></a>00135 *samples++ = lastFrame_[j];
<a name="l00136"></a>00136 }
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keywordflow">return</span> frames;
<a name="l00140"></a>00140 }
</pre></div></p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="BlowBotl_8h_source.html">BlowBotl.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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