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<div class="refentry" title="GENsone">
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<h2>
<span class="refentrytitle">GENsone</span>
</h2>
<p>"sone" —
Generate a table with values of the sone function.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp78604448"></a>
<h2>Description</h2>
<p>
Creates an ftable with values of the sone function for equal power.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp78605128"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>f</strong></span> # time size "sone" start end equalpoint rescale</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp78615552"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>size</em></span> -- number of points in the table. Must
be a power of 2 or power-of-2 plus 1 (see <a class="link" href="f.html" title="f Statement (or Function Table Statement)"><em class="citetitle">f statement</em></a>).
</p>
<p>
<span class="emphasis"><em>start, end</em></span> -- first and last value to be stored. The points stored are uniformly spaced between these to the table size.
</p>
<p>
<span class="emphasis"><em>equalpoint</em></span> -- the point on the curve when the input and output values are equal.
</p>
<p>
<span class="emphasis"><em>rescale</em></span> -- if not zero the table is not rescaled
</p>
<p>
The table is filled with the function x*POWER(x/eqlp,
FL(33.0)/FL(78.0)) for x between the start and end points. This
is the Sone loudness curve.
</p>
</div>
<div class="refsect1" title="Examples">
<a id="idp78618752"></a>
<h2>Examples</h2>
<p>
Here is an example of the GENsone routine. It uses the files <a class="ulink" href="examples/gensone.csd" target="_top"><em class="citetitle">gensone.csd</em></a>.
</p>
<div class="example">
<a id="idp78654632"></a>
<p class="title">
<strong>Example 1075. An example of the GENsone routine.</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">;;;realtime audio out</span>
<span class="comment">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o gensone.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 <span class="comment">; simple oscillator with loudness correction. </span>
kcps <span class="op">=</span> <span class="opc">cpspch</span>(p4)
kenv <span class="opc">linseg</span> 0, p3<span class="op">*</span>0.25, 1, p3<span class="op">*</span>0.75, 0 <span class="comment">;amplitude envelope</span>
kamp <span class="opc">tablei</span> 16384 <span class="op">*</span>kenv, 2
asig <span class="opc">oscil</span> kamp, kcps, 1
<span class="opc">outs</span> asig, asig
<span class="oblock">endin</span>
<span class="oblock">instr</span> 2 <span class="comment">;neutral oscillator to compare with</span>
kcps <span class="op">=</span> <span class="opc">cpspch</span>(p4)
kenv <span class="opc">linseg</span> 0, p3<span class="op">*</span>0.25, 1, p3<span class="op">*</span>0.75, 0 <span class="comment">;amplitude envelope</span>
asig <span class="opc">oscil</span> kenv, kcps, 1
<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">f</span> 1 0 16384 10 1 <span class="comment">;sine wave</span>
<span class="stamnt">f</span> 2 0 16385 "sone" 0 32000 32000 0
<span class="stamnt">s</span>
<span class="stamnt">f</span> 0 1 <span class="comment">;1 second of silence before we start...</span>
<span class="stamnt">s</span>
<span class="stamnt">i</span> 1 0 2 7.00
<span class="stamnt">i</span> 1 + . 7.01
<span class="stamnt">i</span> 1 + . 8.02
<span class="stamnt">i</span> 1 + . 8.03
<span class="stamnt">s</span>
<span class="stamnt">i</span> 2 0 2 7.00
<span class="stamnt">i</span> 2 + . 7.01
<span class="stamnt">i</span> 2 + . 8.02
<span class="stamnt">i</span> 2 + . 8.03
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
</div>
</div>
<p><br class="example-break" />
<span>This is the diagram of the waveforms of the GENsone routine, as used in the example:</span>
</p>
<div class="mediaobject">
<img src="images/gensone.png" alt="f 2 0 16385 "sone" 0 32000 32000 0" />
<div class="caption">
<p>f 2 0 16385 "sone" 0 32000 32000 0</p>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1" title="See Also">
<a id="idp78657688"></a>
<h2>See Also</h2>
<p> More information on Sone: <a class="ulink" href="http://en.wikipedia.org/wiki/Sone" target="_top"><em class="citetitle">http://en.wikipedia.org/wiki/Sone</em></a></p>
</div>
<div class="refsect1" title="Credits">
<a id="idp78658688"></a>
<h2>Credits</h2>
<p>Written by Victor Lazzarini</p>
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