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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_1FreeVerb.html">FreeVerb</a>
</div>
<div class="contents">
<h1>stk::FreeVerb Class Reference</h1><!-- doxytag: class="stk::FreeVerb" --><!-- doxytag: inherits="stk::Effect" -->
<p>Jezar at Dreampoint's <a class="el" href="classstk_1_1FreeVerb.html" title="Jezar at Dreampoint's FreeVerb, implemented in STK.">FreeVerb</a>, implemented in STK.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="FreeVerb_8h_source.html">FreeVerb.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for stk::FreeVerb:</div>
<div class="dynsection">
<div class="center">
<img src="classstk_1_1FreeVerb.png" usemap="#stk::FreeVerb_map" alt=""/>
<map id="stk::FreeVerb_map" name="stk::FreeVerb_map">
<area href="classstk_1_1Effect.html" alt="stk::Effect" 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_1FreeVerb-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_1FreeVerb.html#aba12855fab8cddc4119cbd854e86214a">FreeVerb</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight"><a class="el" href="classstk_1_1FreeVerb.html" title="Jezar at Dreampoint's FreeVerb, implemented in STK.">FreeVerb</a> Constructor. <a href="#aba12855fab8cddc4119cbd854e86214a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a203cd66e21f9ca127139b4948e26dfb9"></a><!-- doxytag: member="stk::FreeVerb::~FreeVerb" ref="a203cd66e21f9ca127139b4948e26dfb9" args="()" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a203cd66e21f9ca127139b4948e26dfb9">~FreeVerb</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af51f5592b04eba08092c2377debf16a8"></a><!-- doxytag: member="stk::FreeVerb::setEffectMix" ref="af51f5592b04eba08092c2377debf16a8" args="(StkFloat mix)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#af51f5592b04eba08092c2377debf16a8">setEffectMix</a> (StkFloat mix)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the effect mix [0 = mostly dry, 1 = mostly wet]. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a60133f8378e8a6f775a01d7d3ca44307"></a><!-- doxytag: member="stk::FreeVerb::setRoomSize" ref="a60133f8378e8a6f775a01d7d3ca44307" args="(StkFloat value)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a60133f8378e8a6f775a01d7d3ca44307">setRoomSize</a> (StkFloat value)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the room size (comb filter feedback gain) parameter [0,1]. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af92c7e8a19aa0a265afc72cf45141d27"></a><!-- doxytag: member="stk::FreeVerb::getRoomSize" ref="af92c7e8a19aa0a265afc72cf45141d27" args="(void)" -->
StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#af92c7e8a19aa0a265afc72cf45141d27">getRoomSize</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the room size (comb filter feedback gain) parameter. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a8576f27cfb65f06c019e80772eaed0fb"></a><!-- doxytag: member="stk::FreeVerb::setDamping" ref="a8576f27cfb65f06c019e80772eaed0fb" args="(StkFloat value)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a8576f27cfb65f06c019e80772eaed0fb">setDamping</a> (StkFloat value)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the damping parameter [0=low damping, 1=higher damping]. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5dd46db58e656e5e9f1c1b1545a14036"></a><!-- doxytag: member="stk::FreeVerb::getDamping" ref="a5dd46db58e656e5e9f1c1b1545a14036" args="(void)" -->
StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a5dd46db58e656e5e9f1c1b1545a14036">getDamping</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the damping parameter. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6ebb13f2d7d2940a0f49a08a191185c5"></a><!-- doxytag: member="stk::FreeVerb::setWidth" ref="a6ebb13f2d7d2940a0f49a08a191185c5" args="(StkFloat value)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a6ebb13f2d7d2940a0f49a08a191185c5">setWidth</a> (StkFloat value)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the width (left-right mixing) parameter [0,1]. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="abb2e0328715a9446f0d5f625ffc88805"></a><!-- doxytag: member="stk::FreeVerb::getWidth" ref="abb2e0328715a9446f0d5f625ffc88805" args="(void)" -->
StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#abb2e0328715a9446f0d5f625ffc88805">getWidth</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the width (left-right mixing) parameter. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="af1070d0612b81c22031907269cf60cfc"></a><!-- doxytag: member="stk::FreeVerb::setMode" ref="af1070d0612b81c22031907269cf60cfc" args="(bool isFrozen)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#af1070d0612b81c22031907269cf60cfc">setMode</a> (bool isFrozen)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Set the mode [frozen = 1, unfrozen = 0]. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a6510448e8d12077bd475a714aace5177"></a><!-- doxytag: member="stk::FreeVerb::getMode" ref="a6510448e8d12077bd475a714aace5177" args="(void)" -->
StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a6510448e8d12077bd475a714aace5177">getMode</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the current freeze mode [frozen = 1, unfrozen = 0]. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3a6551cb5dcf80f27f683c81f47284f3"></a><!-- doxytag: member="stk::FreeVerb::clear" ref="a3a6551cb5dcf80f27f683c81f47284f3" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a3a6551cb5dcf80f27f683c81f47284f3">clear</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Clears delay lines, etc. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#aab7afe56ff978369328cbf4dd4c4cfa3">lastOut</a> (unsigned int channel=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return the specified channel value of the last computed stereo frame. <a href="#aab7afe56ff978369328cbf4dd4c4cfa3"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">StkFloat </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a0cd5d18a9636029196415879e6a027ee">tick</a> (StkFloat inputL, StkFloat inputR=0.0, unsigned int channel=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Input one or two samples to the effect and return the specified <code>channel</code> value of the computed stereo frame. <a href="#a0cd5d18a9636029196415879e6a027ee"></a><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_1FreeVerb.html#a4d9cad73cbd30a4866e0b15c09ca4ac9">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">Take two channels of the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> object as inputs to the effect and replace with stereo outputs. <a href="#a4d9cad73cbd30a4866e0b15c09ca4ac9"></a><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_1FreeVerb.html#af633ae5e8384cc632ec04a3145651dc3">tick</a> (<a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &iFrames, <a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &oFrames, unsigned int iChannel=0, unsigned int oChannel=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Take one or two channels of the <code>iFrames</code> object as inputs to the effect and write stereo outputs to the <code>oFrames</code> object. <a href="#af633ae5e8384cc632ec04a3145651dc3"></a><br/></td></tr>
<tr><td colspan="2"><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a5be3a015730462494a5807a86cd693d1"></a><!-- doxytag: member="stk::FreeVerb::update" ref="a5be3a015730462494a5807a86cd693d1" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1FreeVerb.html#a5be3a015730462494a5807a86cd693d1">update</a> (void)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Update interdependent parameters. <br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>Jezar at Dreampoint's <a class="el" href="classstk_1_1FreeVerb.html" title="Jezar at Dreampoint's FreeVerb, implemented in STK.">FreeVerb</a>, implemented in STK. </p>
<p>Freeverb is a free and open-source Schroeder reverberator originally implemented in C++. The parameters of the reverberation model are exceptionally well tuned. <a class="el" href="classstk_1_1FreeVerb.html" title="Jezar at Dreampoint's FreeVerb, implemented in STK.">FreeVerb</a> uses 8 lowpass-feedback-comb-filters in parallel, followed by 4 Schroeder allpass filters in series. The input signal can be either mono or stereo, and the output signal is stereo. The delay lengths are optimized for a sample rate of 44100 Hz.</p>
<p>Ported to STK by Gregory Burlet, 2012. </p>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="aba12855fab8cddc4119cbd854e86214a"></a><!-- doxytag: member="stk::FreeVerb::FreeVerb" ref="aba12855fab8cddc4119cbd854e86214a" args="()" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">stk::FreeVerb::FreeVerb </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p><a class="el" href="classstk_1_1FreeVerb.html" title="Jezar at Dreampoint's FreeVerb, implemented in STK.">FreeVerb</a> Constructor. </p>
<p>Initializes the effect with default parameters. Note that these defaults are slightly different than those in the original implementation of <a class="el" href="classstk_1_1FreeVerb.html" title="Jezar at Dreampoint's FreeVerb, implemented in STK.">FreeVerb</a> [<a class="el" href="classstk_1_1Effect.html" title="STK abstract effects parent class.">Effect</a> Mix: 0.75; Room Size: 0.75; Damping: 0.25; Width: 1.0; Mode: freeze mode off]. </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="aab7afe56ff978369328cbf4dd4c4cfa3"></a><!-- doxytag: member="stk::FreeVerb::lastOut" ref="aab7afe56ff978369328cbf4dd4c4cfa3" args="(unsigned int channel=0)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">StkFloat stk::FreeVerb::lastOut </td>
<td>(</td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>channel</em> = <code>0</code></td>
<td> ) </td>
<td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return the specified channel value of the last computed stereo frame. </p>
<p>Use the <a class="el" href="classstk_1_1Effect.html#a3d7e2b8942bf7adcc71dfc6dccbb7aa0" title="Return an StkFrames reference to the last output sample frame.">lastFrame()</a> function to get both values of the last computed stereo frame. The <code>channel</code> argument must be 0 or 1 (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><div class="fragment"><pre class="fragment"><a name="l00166"></a>00166 {
<a name="l00167"></a>00167 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00168"></a>00168 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel > 1 ) {
<a name="l00169"></a>00169 oStream_ << <span class="stringliteral">"FreeVerb::lastOut(): channel argument must be less than 2!"</span>;
<a name="l00170"></a>00170 <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="l00171"></a>00171 }
<a name="l00172"></a>00172 <span class="preprocessor">#endif</span>
<a name="l00173"></a>00173 <span class="preprocessor"></span>
<a name="l00174"></a>00174 <span class="keywordflow">return</span> lastFrame_[channel];
<a name="l00175"></a>00175 }
</pre></div></p>
</div>
</div>
<a class="anchor" id="a0cd5d18a9636029196415879e6a027ee"></a><!-- doxytag: member="stk::FreeVerb::tick" ref="a0cd5d18a9636029196415879e6a027ee" args="(StkFloat inputL, StkFloat inputR=0.0, unsigned int channel=0)" -->
<div class="memitem">
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<td class="memname">StkFloat stk::FreeVerb::tick </td>
<td>(</td>
<td class="paramtype">StkFloat </td>
<td class="paramname"> <em>inputL</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">StkFloat </td>
<td class="paramname"> <em>inputR</em> = <code>0.0</code>, </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]</code></td>
</tr>
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<div class="memdoc">
<p>Input one or two samples to the effect and return the specified <code>channel</code> value of the computed stereo frame. </p>
<p>Use the <a class="el" href="classstk_1_1Effect.html#a3d7e2b8942bf7adcc71dfc6dccbb7aa0" title="Return an StkFrames reference to the last output sample frame.">lastFrame()</a> function to get both values of the computed stereo output frame. The <code>channel</code> argument must be 0 or 1 (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><div class="fragment"><pre class="fragment"><a name="l00178"></a>00178 {
<a name="l00179"></a>00179 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00180"></a>00180 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel > 1 ) {
<a name="l00181"></a>00181 oStream_ << <span class="stringliteral">"FreeVerb::tick(): channel argument must be less than 2!"</span>;
<a name="l00182"></a>00182 <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="l00183"></a>00183 }
<a name="l00184"></a>00184 <span class="preprocessor">#endif</span>
<a name="l00185"></a>00185 <span class="preprocessor"></span>
<a name="l00186"></a>00186 <span class="keywordflow">if</span> ( !inputR ) {
<a name="l00187"></a>00187 inputR = inputL;
<a name="l00188"></a>00188 }
<a name="l00189"></a>00189
<a name="l00190"></a>00190 StkFloat fInput = (inputL + inputR) * gain_;
<a name="l00191"></a>00191 StkFloat outL = 0.0;
<a name="l00192"></a>00192 StkFloat outR = 0.0;
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <span class="comment">// Parallel LBCF filters</span>
<a name="l00195"></a>00195 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < nCombs; i++ ) {
<a name="l00196"></a>00196 <span class="comment">// Left channel</span>
<a name="l00197"></a>00197 <span class="comment">//StkFloat yn = fInput + (roomSize_ * FreeVerb::undenormalize(combLPL_[i].tick(FreeVerb::undenormalize(combDelayL_[i].nextOut()))));</span>
<a name="l00198"></a>00198 StkFloat yn = fInput + (roomSize_ * combLPL_[i].tick( combDelayL_[i].nextOut() ) );
<a name="l00199"></a>00199 combDelayL_[i].tick(yn);
<a name="l00200"></a>00200 outL += yn;
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="comment">// Right channel</span>
<a name="l00203"></a>00203 <span class="comment">//yn = fInput + (roomSize_ * FreeVerb::undenormalize(combLPR_[i].tick(FreeVerb::undenormalize(combDelayR_[i].nextOut()))));</span>
<a name="l00204"></a>00204 yn = fInput + (roomSize_ * combLPR_[i].tick( combDelayR_[i].nextOut() ) );
<a name="l00205"></a>00205 combDelayR_[i].tick(yn);
<a name="l00206"></a>00206 outR += yn;
<a name="l00207"></a>00207 }
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="comment">// Series allpass filters</span>
<a name="l00210"></a>00210 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < nAllpasses; i++ ) {
<a name="l00211"></a>00211 <span class="comment">// Left channel</span>
<a name="l00212"></a>00212 <span class="comment">//StkFloat vn_m = FreeVerb::undenormalize(allPassDelayL_[i].nextOut());</span>
<a name="l00213"></a>00213 StkFloat vn_m = allPassDelayL_[i].nextOut();
<a name="l00214"></a>00214 StkFloat vn = outL + (g_ * vn_m);
<a name="l00215"></a>00215 allPassDelayL_[i].tick(vn);
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="comment">// calculate output</span>
<a name="l00218"></a>00218 outL = -vn + (1.0 + g_)*vn_m;
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="comment">// Right channel</span>
<a name="l00221"></a>00221 <span class="comment">//vn_m = FreeVerb::undenormalize(allPassDelayR_[i].nextOut());</span>
<a name="l00222"></a>00222 vn_m = allPassDelayR_[i].nextOut();
<a name="l00223"></a>00223 vn = outR + (g_ * vn_m);
<a name="l00224"></a>00224 allPassDelayR_[i].tick(vn);
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="comment">// calculate output</span>
<a name="l00227"></a>00227 outR = -vn + (1.0 + g_)*vn_m;
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229
<a name="l00230"></a>00230 <span class="comment">// Mix output</span>
<a name="l00231"></a>00231 lastFrame_[0] = outL*wet1_ + outR*wet2_ + inputL*dry_;
<a name="l00232"></a>00232 lastFrame_[1] = outR*wet1_ + outL*wet2_ + inputR*dry_;
<a name="l00233"></a>00233
<a name="l00234"></a>00234 <span class="comment">/*</span>
<a name="l00235"></a>00235 <span class="comment"> // Hard limiter ... there's not much else we can do at this point</span>
<a name="l00236"></a>00236 <span class="comment"> if ( lastFrame_[0] >= 1.0 ) {</span>
<a name="l00237"></a>00237 <span class="comment"> lastFrame_[0] = 0.9999;</span>
<a name="l00238"></a>00238 <span class="comment"> }</span>
<a name="l00239"></a>00239 <span class="comment"> if ( lastFrame_[0] <= -1.0 ) {</span>
<a name="l00240"></a>00240 <span class="comment"> lastFrame_[0] = -0.9999;</span>
<a name="l00241"></a>00241 <span class="comment"> }</span>
<a name="l00242"></a>00242 <span class="comment"> if ( lastFrame_[1] >= 1.0 ) {</span>
<a name="l00243"></a>00243 <span class="comment"> lastFrame_[1] = 0.9999;</span>
<a name="l00244"></a>00244 <span class="comment"> }</span>
<a name="l00245"></a>00245 <span class="comment"> if ( lastFrame_[1] <= -1.0 ) {</span>
<a name="l00246"></a>00246 <span class="comment"> lastFrame_[1] = -0.9999;</span>
<a name="l00247"></a>00247 <span class="comment"> }</span>
<a name="l00248"></a>00248 <span class="comment"> */</span>
<a name="l00249"></a>00249
<a name="l00250"></a>00250 <span class="keywordflow">return</span> lastFrame_[channel];
<a name="l00251"></a>00251 }
</pre></div></p>
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<a class="anchor" id="a4d9cad73cbd30a4866e0b15c09ca4ac9"></a><!-- doxytag: member="stk::FreeVerb::tick" ref="a4d9cad73cbd30a4866e0b15c09ca4ac9" 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::FreeVerb::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>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>channel</em> = <code>0</code></td><td> </td>
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<td></td>
<td>)</td>
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<p>Take two channels of the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> object as inputs to the effect and replace with stereo outputs. </p>
<p>The <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> argument reference is returned. The stereo inputs are taken from (and written back to) the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> argument starting at the specified <code>channel</code>. Therefore, the <code>channel</code> argument must be less than ( channels() - 1 ) of 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>
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<a class="anchor" id="af633ae5e8384cc632ec04a3145651dc3"></a><!-- doxytag: member="stk::FreeVerb::tick" ref="af633ae5e8384cc632ec04a3145651dc3" args="(StkFrames &iFrames, StkFrames &oFrames, unsigned int iChannel=0, unsigned int oChannel=0)" -->
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<td class="memname"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a>& stk::FreeVerb::tick </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> & </td>
<td class="paramname"> <em>iFrames</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> & </td>
<td class="paramname"> <em>oFrames</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>iChannel</em> = <code>0</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int </td>
<td class="paramname"> <em>oChannel</em> = <code>0</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
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<div class="memdoc">
<p>Take one or two channels of the <code>iFrames</code> object as inputs to the effect and write stereo outputs to the <code>oFrames</code> object. </p>
<p>The <code>iFrames</code> object reference is returned. The <code>iChannel</code> argument must be less than the number of channels in the <code>iFrames</code> argument (the first channel is specified by 0). If more than one channel of data exists in <code>iFrames</code> starting from <code>iChannel</code>, stereo data is input to the effect. The <code>oChannel</code> argument must be less than ( channels() - 1 ) of the <code>oFrames</code> argument. 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>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="FreeVerb_8h_source.html">FreeVerb.h</a></li>
</ul>
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