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<h1>BandedWG.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_BANDEDWG_H</span>
<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_BANDEDWG_H</span>
<a name="l00003"></a>00003 <span class="preprocessor"></span>
<a name="l00004"></a>00004 <span class="preprocessor">#include "Instrmnt.h"</span>
<a name="l00005"></a>00005 <span class="preprocessor">#include "DelayL.h"</span>
<a name="l00006"></a>00006 <span class="preprocessor">#include "BowTable.h"</span>
<a name="l00007"></a>00007 <span class="preprocessor">#include "ADSR.h"</span>
<a name="l00008"></a>00008 <span class="preprocessor">#include "BiQuad.h"</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="keyword">namespace </span>stk {
<a name="l00011"></a>00011
<a name="l00012"></a>00012 <span class="comment">/***************************************************/</span>
<a name="l00041"></a>00041 <span class="comment">/***************************************************/</span>
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">const</span> <span class="keywordtype">int</span> MAX_BANDED_MODES = 20;
<a name="l00044"></a>00044
<a name="l00045"></a><a class="code" href="classstk_1_1BandedWG.html">00045</a> <span class="keyword">class </span><a class="code" href="classstk_1_1BandedWG.html" title="Banded waveguide modeling class.">BandedWG</a> : <span class="keyword">public</span> <a class="code" href="classstk_1_1Instrmnt.html" title="STK instrument abstract base class.">Instrmnt</a>
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 <span class="keyword">public</span>:
<a name="l00049"></a>00049 <a class="code" href="classstk_1_1BandedWG.html#ad449f248adaa49344c2bd25be4a7872d" title="Class constructor.">BandedWG</a>( <span class="keywordtype">void</span> );
<a name="l00050"></a>00050
<a name="l00052"></a>00052 <a class="code" href="classstk_1_1BandedWG.html#ac4044055c28bad672c9537b985d18289" title="Class destructor.">~BandedWG</a>( <span class="keywordtype">void</span> );
<a name="l00053"></a>00053
<a name="l00055"></a>00055 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#a182dbf5d75aebf5714bd6df15b0df90c" title="Reset and clear all internal state.">clear</a>( <span class="keywordtype">void</span> );
<a name="l00056"></a>00056
<a name="l00058"></a>00058 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#a4394ee4cd1c84a8b3f92713e60715c4d" title="Set strike position (0.0 - 1.0).">setStrikePosition</a>( StkFloat position );
<a name="l00059"></a>00059
<a name="l00061"></a>00061 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#ab1e3a367eef86e6cb372b4ee232e1804" title="Select a preset.">setPreset</a>( <span class="keywordtype">int</span> preset );
<a name="l00062"></a>00062
<a name="l00064"></a>00064 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#acf104d4ed663b5f0cd034c8025f4d420" title="Set instrument parameters for a particular frequency.">setFrequency</a>( StkFloat frequency );
<a name="l00065"></a>00065
<a name="l00067"></a>00067 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#a37b20c2554e7100241a99758f5a4433e" title="Apply bow velocity/pressure to instrument with given amplitude and rate of increase...">startBowing</a>( StkFloat amplitude, StkFloat rate );
<a name="l00068"></a>00068
<a name="l00070"></a>00070 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#aa14786c32af030311e2118db3b68a892" title="Decrease bow velocity/breath pressure with given rate of decrease.">stopBowing</a>( StkFloat rate );
<a name="l00071"></a>00071
<a name="l00073"></a>00073 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#a271573afaa2dc655446482bad6745cc1" title="Pluck the instrument with given amplitude.">pluck</a>( StkFloat amp );
<a name="l00074"></a>00074
<a name="l00076"></a>00076 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#a8f334ae49b7baf561d74a0b6ec3c4f9a" title="Start a note with the given frequency and amplitude.">noteOn</a>( StkFloat frequency, StkFloat amplitude );
<a name="l00077"></a>00077
<a name="l00079"></a>00079 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#ac9c3c3ec0e821b1a080774bb55d3b881" title="Stop a note with the given amplitude (speed of decay).">noteOff</a>( StkFloat amplitude );
<a name="l00080"></a>00080
<a name="l00082"></a>00082 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1BandedWG.html#a16baac1cc6612332d6d0aa40a661c137" title="Perform the control change specified by number and value (0.0 - 128.0).">controlChange</a>( <span class="keywordtype">int</span> number, StkFloat value );
<a name="l00083"></a>00083
<a name="l00085"></a>00085 StkFloat <a class="code" href="classstk_1_1BandedWG.html#a44f37146d33354afb085806bd8340497" title="Compute and return one output sample.">tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
<a name="l00086"></a>00086
<a name="l00088"></a>00088
<a name="l00095"></a>00095 <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& <a class="code" href="classstk_1_1BandedWG.html#a44f37146d33354afb085806bd8340497" title="Compute and return one output sample.">tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keyword">protected</span>:
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordtype">bool</span> doPluck_;
<a name="l00100"></a>00100 <span class="keywordtype">bool</span> trackVelocity_;
<a name="l00101"></a>00101 <span class="keywordtype">int</span> nModes_;
<a name="l00102"></a>00102 <span class="keywordtype">int</span> presetModes_;
<a name="l00103"></a>00103 <a class="code" href="classstk_1_1BowTable.html" title="STK bowed string table class.">BowTable</a> bowTable_;
<a name="l00104"></a>00104 <a class="code" href="classstk_1_1ADSR.html" title="STK ADSR envelope class.">ADSR</a> adsr_;
<a name="l00105"></a>00105 <a class="code" href="classstk_1_1BiQuad.html" title="STK biquad (two-pole, two-zero) filter class.">BiQuad</a> bandpass_[MAX_BANDED_MODES];
<a name="l00106"></a>00106 <a class="code" href="classstk_1_1DelayL.html" title="STK linear interpolating delay line class.">DelayL</a> delay_[MAX_BANDED_MODES];
<a name="l00107"></a>00107 StkFloat maxVelocity_;
<a name="l00108"></a>00108 StkFloat modes_[MAX_BANDED_MODES];
<a name="l00109"></a>00109 StkFloat frequency_;
<a name="l00110"></a>00110 StkFloat baseGain_;
<a name="l00111"></a>00111 StkFloat gains_[MAX_BANDED_MODES];
<a name="l00112"></a>00112 StkFloat basegains_[MAX_BANDED_MODES];
<a name="l00113"></a>00113 StkFloat excitation_[MAX_BANDED_MODES];
<a name="l00114"></a>00114 StkFloat integrationConstant_;
<a name="l00115"></a>00115 StkFloat velocityInput_;
<a name="l00116"></a>00116 StkFloat bowVelocity_;
<a name="l00117"></a>00117 StkFloat bowTarget_;
<a name="l00118"></a>00118 StkFloat bowPosition_;
<a name="l00119"></a>00119 StkFloat strikeAmp_;
<a name="l00120"></a>00120 <span class="keywordtype">int</span> strikePosition_;
<a name="l00121"></a>00121
<a name="l00122"></a>00122 };
<a name="l00123"></a>00123
<a name="l00124"></a><a class="code" href="classstk_1_1BandedWG.html#a6c2ebb66862b173c4835add6847801c9">00124</a> <span class="keyword">inline</span> <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& <a class="code" href="classstk_1_1BandedWG.html#a44f37146d33354afb085806bd8340497" title="Compute and return one output sample.">BandedWG :: tick</a>( <a class="code" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a>& frames, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel )
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nChannels = lastFrame_.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>();
<a name="l00127"></a>00127 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00128"></a>00128 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel > frames.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() - nChannels ) {
<a name="l00129"></a>00129 oStream_ << <span class="stringliteral">"BandedWG::tick(): channel and StkFrames arguments are incompatible!"</span>;
<a name="l00130"></a>00130 <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="l00131"></a>00131 }
<a name="l00132"></a>00132 <span class="preprocessor">#endif</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span>
<a name="l00134"></a>00134 StkFloat *samples = &frames[channel];
<a name="l00135"></a>00135 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> j, hop = frames.<a class="code" href="classstk_1_1StkFrames.html#aec7ef9c46675a24111aa6e2fda3ba870" title="Return the number of channels represented by the data.">channels</a>() - nChannels;
<a name="l00136"></a>00136 <span class="keywordflow">if</span> ( nChannels == 1 ) {
<a name="l00137"></a>00137 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<frames.<a class="code" href="classstk_1_1StkFrames.html#a05b1ab6fa750a8221a7d65c30e0cdab9" title="Return the number of sample frames represented by the data.">frames</a>(); i++, samples += hop )
<a name="l00138"></a>00138 *samples++ = <a class="code" href="classstk_1_1BandedWG.html#a44f37146d33354afb085806bd8340497" title="Compute and return one output sample.">tick</a>();
<a name="l00139"></a>00139 }
<a name="l00140"></a>00140 <span class="keywordflow">else</span> {
<a name="l00141"></a>00141 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i<frames.<a class="code" href="classstk_1_1StkFrames.html#a05b1ab6fa750a8221a7d65c30e0cdab9" title="Return the number of sample frames represented by the data.">frames</a>(); i++, samples += hop ) {
<a name="l00142"></a>00142 *samples++ = <a class="code" href="classstk_1_1BandedWG.html#a44f37146d33354afb085806bd8340497" title="Compute and return one output sample.">tick</a>();
<a name="l00143"></a>00143 <span class="keywordflow">for</span> ( j=1; j<nChannels; j++ )
<a name="l00144"></a>00144 *samples++ = lastFrame_[j];
<a name="l00145"></a>00145 }
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="keywordflow">return</span> frames;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 } <span class="comment">// stk namespace</span>
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="preprocessor">#endif</span>
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