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<div class="refentry" title="STKTubeBell">
<a id="STKTubeBell"></a>
<div class="titlepage"></div>
<a id="IndexStktubebell" class="indexterm"></a>
<div class="refnamediv">
<h2>
<span class="refentrytitle">STKTubeBell</span>
</h2>
<p>STKTubeBell —
STKTubeBell is a tubular bell (orchestral chime) FM synthesis instrument.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp46062016"></a>
<h2>Description</h2>
<p>
STKTubeBell is a tubular bell (orchestral chime) FM synthesis instrument.
It uses two simple FM Pairs summed together, also referred to as algorithm 5 of the TX81Z.</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp46070032"></a>
<h2>Syntax</h2>
<pre class="synopsis">asignal <span class="command"><strong>STKTubeBell</strong></span> ifrequency, iamplitude, [kc1, kv1[, kc2, kv2[, kc3, kv3[, kc4, kv4[, kc5, kv5]]]]]</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp46071192"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>ifrequency</em></span> -- Frequency of note played, in Hertz.
</p>
<p>
<span class="emphasis"><em>iamplitude</em></span> -- Amplitude of note played (range 0-1).
</p>
</div>
<div class="refsect1" title="Performance">
<a id="idp46072512"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>kc1, kv1, kc2, kv2, kc3, kv3, kc4, kv4, kc5, kv5, kc6, kv6, kc7, kv7, kc8, kv8</em></span> -- Up to 8 optional k-rate controller pairs for the STK opcodes.
Each controller pair consists of a controller number (kc) followed by a controller value (kv). The 5 controller numbers and values that work for STKTubeBell are:
</p>
<div class="itemizedlist">
<ul class="itemizedlist" type="disc">
<li class="listitem">
<p><span class="emphasis"><em>kc, kv</em></span> -- 2, modulator index 1.</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>kc, kv</em></span> -- 4, crossfade of outputs.</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>kc, kv</em></span> -- 11, speed of low-frequency oscillator.</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>kc, kv</em></span> -- 1, depth of low-frequency oscillator.</p>
</li>
<li class="listitem">
<p><span class="emphasis"><em>kc, kv</em></span> -- 128, ADSR 2 and 4 target.</p>
</li>
</ul>
</div>
<p>
</p>
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<div class="refsect1">
<a id="idp46075984"></a>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note: Note">
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<th align="left">Note</th>
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<td align="left" valign="top">
<p>
The code for this opcode is taken directly from the TubeBell class in the Synthesis Toolkit in C++ by Perry R. Cook and Gary P. Scavone. More on the STK classes can be found here:
<a class="ulink" href="https://ccrma.stanford.edu/software/stk/classes.html" target="_top"><em class="citetitle">https://ccrma.stanford.edu/software/stk/classes.html</em></a>
</p>
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<div class="refsect1" title="Examples">
<a id="idp46132144"></a>
<h2>Examples</h2>
<p>
Here is an example of the STKTubeBell opcode. It uses the file <a class="ulink" href="examples/STKTubeBell.csd" target="_top"><em class="citetitle">STKTubeBell.csd</em></a>.
</p>
<div class="example">
<a id="idp46133072"></a>
<p class="title">
<strong>Example 821. Example of the STKTubeBell opcode.</strong>
</p>
<div class="example-contents">
<pre class="programlisting">
<span class="csdtag"><CsoundSynthesizer></span>
<span class="csdtag"><CsOptions></span>
<span class="comment">; Select audio/midi flags here according to platform</span>
-odac <span class="comment">;;;RT audio out</span>
<span class="comment">;-iadc ;;;uncomment -iadc if RT audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o STKTubeBell.wav -W ;;; for file output any platform</span>
<span class="csdtag"></CsOptions></span>
<span class="csdtag"><CsInstruments></span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 32
<span class="ohdr">nchnls</span> <span class="op">=</span> 2
<span class="ohdr">0dbfs</span> <span class="op">=</span> 1
<span class="oblock">instr</span> 1
ifrq <span class="op">=</span> p4
kfad <span class="opc">line</span> p6, p3, p7 <span class="comment">;Crossfade of Outputs</span>
kindx <span class="op">=</span> p5 <span class="comment">;(FM) Modulator Index One</span>
asig <span class="opc">STKTubeBell</span> <span class="opc">cpspch</span>(p4), 1, 2, kindx, 4, kfad, 11, 10, 1, 70, 128,50
<span class="opc">outs</span> asig, asig
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 2 7.05 0 100 100
<span class="stamnt">i</span> 1 + 4 9.00 127 127 30
<span class="stamnt">i</span> 1 + 1 10.00 127 12 30
<span class="stamnt">i</span> 1 + 3 6.08 127 1 100
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
</p>
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<div class="refsect1" title="Credits">
<a id="idp46134088"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Michael Gogins (after Perry Cook)</td>
</tr>
<tr>
<td>Irreducible Productions</td>
</tr>
<tr>
<td>New York, NY</td>
</tr>
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<p>
</p>
<p>New in Csound version 5.11</p>
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