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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<h1>Rhodey.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_RHODEY_H</span>
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<a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define STK_RHODEY_H</span>
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<a name="l00003"></a>00003 <span class="preprocessor"></span>
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<a name="l00004"></a>00004 <span class="preprocessor">#include "FM.h"</span>
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<a name="l00005"></a>00005
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<a name="l00006"></a>00006 <span class="keyword">namespace </span>stk {
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<a name="l00007"></a>00007
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<a name="l00008"></a>00008 <span class="comment">/***************************************************/</span>
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<a name="l00038"></a>00038 <span class="comment">/***************************************************/</span>
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<a name="l00039"></a>00039
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<a name="l00040"></a><a class="code" href="classstk_1_1Rhodey.html">00040</a> <span class="keyword">class </span><a class="code" href="classstk_1_1Rhodey.html" title="STK Fender Rhodes electric piano FM synthesis instrument.">Rhodey</a> : <span class="keyword">public</span> <a class="code" href="classstk_1_1FM.html" title="STK abstract FM synthesis base class.">FM</a>
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<a name="l00041"></a>00041 {
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<a name="l00042"></a>00042 <span class="keyword">public</span>:
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<a name="l00044"></a>00044
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<a name="l00047"></a>00047 <a class="code" href="classstk_1_1Rhodey.html#ab647310b8bfc12b518b5c3a89db6d94e" title="Class constructor.">Rhodey</a>( <span class="keywordtype">void</span> );
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<a name="l00048"></a>00048
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<a name="l00050"></a>00050 <a class="code" href="classstk_1_1Rhodey.html#a6fc6c7473cef051e11a62802848b228c" title="Class destructor.">~Rhodey</a>( <span class="keywordtype">void</span> );
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<a name="l00051"></a>00051
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<a name="l00053"></a>00053 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Rhodey.html#a216ff771d88e7e03c46bc477d7ed5e86" title="Set instrument parameters for a particular frequency.">setFrequency</a>( StkFloat frequency );
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<a name="l00054"></a>00054
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<a name="l00056"></a>00056 <span class="keywordtype">void</span> <a class="code" href="classstk_1_1Rhodey.html#a98e112778609f8eb217c0956f17c65e4" title="Start a note with the given frequency and amplitude.">noteOn</a>( StkFloat frequency, StkFloat amplitude );
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<a name="l00057"></a>00057
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<a name="l00059"></a>00059 StkFloat <a class="code" href="classstk_1_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" title="Compute and return one output sample.">tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> channel = 0 );
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<a name="l00060"></a>00060
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<a name="l00062"></a>00062
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<a name="l00069"></a>00069 <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_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" 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 );
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<a name="l00070"></a>00070
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<a name="l00071"></a>00071 <span class="keyword">protected</span>:
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<a name="l00072"></a>00072
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<a name="l00073"></a>00073 };
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<a name="l00074"></a>00074
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<a name="l00075"></a><a class="code" href="classstk_1_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790">00075</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" title="Compute and return one output sample.">Rhodey :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> )
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<a name="l00076"></a>00076 {
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<a name="l00077"></a>00077 StkFloat temp, temp2;
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<a name="l00078"></a>00078
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<a name="l00079"></a>00079 temp = gains_[1] * adsr_[1]->tick() * waves_[1]->tick();
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<a name="l00080"></a>00080 temp = temp * control1_;
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<a name="l00081"></a>00081
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<a name="l00082"></a>00082 waves_[0]->addPhaseOffset( temp );
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<a name="l00083"></a>00083 waves_[3]->addPhaseOffset( twozero_.<a class="code" href="classstk_1_1TwoZero.html#ae9808b0152902d0067ea24ccfba0b4ba" title="Return the last computed output value.">lastOut</a>() );
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<a name="l00084"></a>00084 temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick();
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<a name="l00085"></a>00085 twozero_.<a class="code" href="classstk_1_1TwoZero.html#acf92a66aeb2024cfcdb9d71ecadf3d82" title="Input one sample to the filter and return one output.">tick</a>(temp);
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087 waves_[2]->addPhaseOffset( temp );
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<a name="l00088"></a>00088 temp = ( 1.0 - (control2_ * 0.5)) * gains_[0] * adsr_[0]-><a class="code" href="classstk_1_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" title="Compute and return one output sample.">tick</a>() * waves_[0]->tick();
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<a name="l00089"></a>00089 temp += control2_ * 0.5 * gains_[2] * adsr_[2]->tick() * waves_[2]->tick();
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<a name="l00090"></a>00090
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<a name="l00091"></a>00091 <span class="comment">// Calculate amplitude modulation and apply it to output.</span>
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<a name="l00092"></a>00092 temp2 = vibrato_.<a class="code" href="classstk_1_1SineWave.html#a31a55627bf8064919b5e063059260eda" title="Compute and return one output sample.">tick</a>() * modDepth_;
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<a name="l00093"></a>00093 temp = temp * (1.0 + temp2);
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<a name="l00094"></a>00094
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<a name="l00095"></a>00095 lastFrame_[0] = temp * 0.5;
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<a name="l00096"></a>00096 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00097"></a>00097 }
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<a name="l00098"></a>00098
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<a name="l00099"></a><a class="code" href="classstk_1_1Rhodey.html#a9d843b764e5219c8289884d0903462f9">00099</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_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" title="Compute and return one output sample.">Rhodey :: 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 )
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<a name="l00100"></a>00100 {
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<a name="l00101"></a>00101 <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>();
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<a name="l00102"></a>00102 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
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<a name="l00103"></a>00103 <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 ) {
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<a name="l00104"></a>00104 oStream_ << <span class="stringliteral">"Rhodey::tick(): channel and StkFrames arguments are incompatible!"</span>;
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<a name="l00105"></a>00105 <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 );
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<a name="l00106"></a>00106 }
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<a name="l00107"></a>00107 <span class="preprocessor">#endif</span>
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<a name="l00108"></a>00108 <span class="preprocessor"></span>
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<a name="l00109"></a>00109 StkFloat *samples = &frames[channel];
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<a name="l00110"></a>00110 <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;
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<a name="l00111"></a>00111 <span class="keywordflow">if</span> ( nChannels == 1 ) {
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<a name="l00112"></a>00112 <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 )
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<a name="l00113"></a>00113 *samples++ = <a class="code" href="classstk_1_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" title="Compute and return one output sample.">tick</a>();
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<a name="l00114"></a>00114 }
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<a name="l00115"></a>00115 <span class="keywordflow">else</span> {
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<a name="l00116"></a>00116 <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 ) {
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<a name="l00117"></a>00117 *samples++ = <a class="code" href="classstk_1_1Rhodey.html#a199591ffb4230c653ec7d7ea52e37790" title="Compute and return one output sample.">tick</a>();
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<a name="l00118"></a>00118 <span class="keywordflow">for</span> ( j=1; j<nChannels; j++ )
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<a name="l00119"></a>00119 *samples++ = lastFrame_[j];
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<a name="l00120"></a>00120 }
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<a name="l00121"></a>00121 }
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<a name="l00122"></a>00122
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<a name="l00123"></a>00123 <span class="keywordflow">return</span> frames;
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<a name="l00124"></a>00124 }
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<a name="l00125"></a>00125
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<a name="l00126"></a>00126 } <span class="comment">// stk namespace</span>
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<a name="l00127"></a>00127
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<a name="l00128"></a>00128 <span class="preprocessor">#endif</span>
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</pre></div></div>
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<table>
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<tr><td><A HREF="http://ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
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<tr><td>©1995-2012 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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