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Release 4.4.3 tarball
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Gary Scavone
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Stephen Sinclair
Stephen Sinclair
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<h1>FMVoices.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef STK_FMVOICES_H</span>
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@@ -38,47 +38,77 @@
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<a name="l00060"></a>00060
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<a name="l00062"></a>00062 StkFloat <a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887" 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="l00063"></a>00063
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<a name="l00064"></a>00064 <span class="keyword">protected</span>:
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<a name="l00065"></a>00065
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<a name="l00066"></a>00066 <span class="keywordtype">int</span> currentVowel_;
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<a name="l00067"></a>00067 StkFloat tilt_[3];
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<a name="l00068"></a>00068 StkFloat mods_[3];
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<a name="l00069"></a>00069 };
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<a name="l00070"></a>00070
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<a name="l00071"></a><a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887">00071</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887" title="Compute and return one output sample.">FMVoices :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> )
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<a name="l00072"></a>00072 {
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<a name="l00073"></a>00073 <span class="keyword">register</span> StkFloat temp, temp2;
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<a name="l00074"></a>00074
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<a name="l00075"></a>00075 temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick();
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<a name="l00076"></a>00076 temp2 = vibrato_.<a class="code" href="classstk_1_1SineWave.html#a31a55627bf8064919b5e063059260eda" title="Compute and return one output sample.">tick</a>() * modDepth_ * 0.1;
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<a name="l00077"></a>00077
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<a name="l00078"></a>00078 waves_[0]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[0]);
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<a name="l00079"></a>00079 waves_[1]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[1]);
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<a name="l00080"></a>00080 waves_[2]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[2]);
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<a name="l00081"></a>00081 waves_[3]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[3]);
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<a name="l00082"></a>00082
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<a name="l00083"></a>00083 waves_[0]->addPhaseOffset(temp * mods_[0]);
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<a name="l00084"></a>00084 waves_[1]->addPhaseOffset(temp * mods_[1]);
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<a name="l00085"></a>00085 waves_[2]->addPhaseOffset(temp * mods_[2]);
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<a name="l00086"></a>00086 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="l00087"></a>00087 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="l00088"></a>00088 temp = gains_[0] * tilt_[0] * adsr_[0]->tick() * waves_[0]->tick();
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<a name="l00089"></a>00089 temp += gains_[1] * tilt_[1] * adsr_[1]->tick() * waves_[1]->tick();
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<a name="l00090"></a>00090 temp += gains_[2] * tilt_[2] * adsr_[2]->tick() * waves_[2]->tick();
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<a name="l00091"></a>00091
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<a name="l00092"></a>00092 lastFrame_[0] = temp * 0.33;
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<a name="l00093"></a>00093 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00094"></a>00094 }
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<a name="l00095"></a>00095
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<a name="l00096"></a>00096 } <span class="comment">// stk namespace</span>
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<a name="l00097"></a>00097
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<a name="l00098"></a>00098 <span class="preprocessor">#endif</span>
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<a name="l00072"></a>00072 <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_1FMVoices.html#a31111029e36d00230586250df7b4d887" 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="l00073"></a>00073
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<a name="l00074"></a>00074 <span class="keyword">protected</span>:
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<a name="l00075"></a>00075
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<a name="l00076"></a>00076 <span class="keywordtype">int</span> currentVowel_;
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<a name="l00077"></a>00077 StkFloat tilt_[3];
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<a name="l00078"></a>00078 StkFloat mods_[3];
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<a name="l00079"></a>00079 };
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<a name="l00080"></a>00080
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<a name="l00081"></a><a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887">00081</a> <span class="keyword">inline</span> StkFloat <a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887" title="Compute and return one output sample.">FMVoices :: tick</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> )
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<a name="l00082"></a>00082 {
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<a name="l00083"></a>00083 <span class="keyword">register</span> StkFloat temp, temp2;
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<a name="l00084"></a>00084
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<a name="l00085"></a>00085 temp = gains_[3] * adsr_[3]->tick() * waves_[3]->tick();
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<a name="l00086"></a>00086 temp2 = vibrato_.<a class="code" href="classstk_1_1SineWave.html#a31a55627bf8064919b5e063059260eda" title="Compute and return one output sample.">tick</a>() * modDepth_ * 0.1;
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<a name="l00087"></a>00087
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<a name="l00088"></a>00088 waves_[0]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[0]);
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<a name="l00089"></a>00089 waves_[1]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[1]);
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<a name="l00090"></a>00090 waves_[2]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[2]);
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<a name="l00091"></a>00091 waves_[3]->setFrequency(baseFrequency_ * (1.0 + temp2) * ratios_[3]);
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<a name="l00092"></a>00092
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<a name="l00093"></a>00093 waves_[0]->addPhaseOffset(temp * mods_[0]);
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<a name="l00094"></a>00094 waves_[1]->addPhaseOffset(temp * mods_[1]);
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<a name="l00095"></a>00095 waves_[2]->addPhaseOffset(temp * mods_[2]);
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<a name="l00096"></a>00096 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="l00097"></a>00097 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="l00098"></a>00098 temp = gains_[0] * tilt_[0] * adsr_[0]->tick() * waves_[0]->tick();
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<a name="l00099"></a>00099 temp += gains_[1] * tilt_[1] * adsr_[1]->tick() * waves_[1]->tick();
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<a name="l00100"></a>00100 temp += gains_[2] * tilt_[2] * adsr_[2]->tick() * waves_[2]->tick();
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<a name="l00101"></a>00101
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<a name="l00102"></a>00102 lastFrame_[0] = temp * 0.33;
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<a name="l00103"></a>00103 <span class="keywordflow">return</span> lastFrame_[0];
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<a name="l00104"></a>00104 }
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<a name="l00105"></a>00105
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<a name="l00106"></a><a class="code" href="classstk_1_1FMVoices.html#abad16be89b38d4618a07c5d71ab49e26">00106</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_1FMVoices.html#a31111029e36d00230586250df7b4d887" title="Compute and return one output sample.">FMVoices :: 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="l00107"></a>00107 {
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<a name="l00108"></a>00108 <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="l00109"></a>00109 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
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<a name="l00110"></a>00110 <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="l00111"></a>00111 oStream_ << <span class="stringliteral">"FMVoices::tick(): channel and StkFrames arguments are incompatible!"</span>;
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<a name="l00112"></a>00112 <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="l00113"></a>00113 }
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<a name="l00114"></a>00114 <span class="preprocessor">#endif</span>
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<a name="l00115"></a>00115 <span class="preprocessor"></span>
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<a name="l00116"></a>00116 StkFloat *samples = &frames[channel];
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<a name="l00117"></a>00117 <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="l00118"></a>00118 <span class="keywordflow">if</span> ( nChannels == 1 ) {
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<a name="l00119"></a>00119 <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="l00120"></a>00120 *samples++ = <a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887" title="Compute and return one output sample.">tick</a>();
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<a name="l00121"></a>00121 }
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<a name="l00122"></a>00122 <span class="keywordflow">else</span> {
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<a name="l00123"></a>00123 <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="l00124"></a>00124 *samples++ = <a class="code" href="classstk_1_1FMVoices.html#a31111029e36d00230586250df7b4d887" title="Compute and return one output sample.">tick</a>();
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<a name="l00125"></a>00125 <span class="keywordflow">for</span> ( j=1; j<nChannels; j++ )
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<a name="l00126"></a>00126 *samples++ = lastFrame_[j];
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<a name="l00127"></a>00127 }
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<a name="l00128"></a>00128 }
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<a name="l00129"></a>00129
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<a name="l00130"></a>00130 <span class="keywordflow">return</span> frames;
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<a name="l00131"></a>00131 }
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<a name="l00132"></a>00132
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<a name="l00133"></a>00133 } <span class="comment">// stk namespace</span>
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<a name="l00134"></a>00134
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<a name="l00135"></a>00135 <span class="preprocessor">#endif</span>
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</pre></div></div>
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<HR>
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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>©1995-2010 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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<tr><td>©1995-2011 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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</table>
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