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<h2>
<span class="refentrytitle">sinsyn</span>
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<p>sinsyn —
Streaming partial track additive synthesis with cubic phase interpolation
</p>
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<div class="refsect1" title="Description">
<a id="id3196961"></a>
<h2>Description</h2>
<p>
The sinsyn opcode takes an input containg a TRACKS pv streaming signal (as generated,
for instance by the partials opcode). It sinsynthesises the signal using linear amplitude and cubic phase
interpolation to drive a bank of interpolating oscillators with amplitude and pitch scaling controls. Sinsyn
attempts to preserve the phase of the partials in the original signal and in so doing it does not allow for
pitch or timescale modifications of the signal.
</p>
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<div class="refsect1" title="Syntax">
<a id="id3196979"></a>
<h2>Syntax</h2>
<pre class="synopsis">asig <span class="command"><strong>sinsyn</strong></span> fin, kscal, kmaxtracks, ifn</pre>
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<div class="refsect1" title="Performance">
<a id="id3197938"></a>
<h2>Performance</h2>
<p>
<span class="emphasis"><em>asig</em></span> -- output audio rate signal
</p>
<p>
<span class="emphasis"><em>fin</em></span> -- input pv stream in TRACKS format
</p>
<p>
<span class="emphasis"><em>kscal</em></span> -- amplitude scaling
</p>
<p>
<span class="emphasis"><em>kmaxtracks</em></span> -- max number of tracks in sinsynthesis. Limiting this will cause
a non-linear filtering effect, by discarding newer and higher-frequency tracks (tracks are ordered
by start time and ascending frequency, respectively)
</p>
<p>
<span class="emphasis"><em>ifn</em></span> -- function table containing one cycle of a sinusoid (sine or cosine) </p>
<p>
</p>
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<a id="id3197987"></a>
<h2>Examples</h2>
<p>
</p>
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<a id="id3197994"></a>
<p class="title">
<b>Example 560. Example</b>
</p>
<div class="example-contents">
<pre class="programlisting">
ain inch 1 ; input signal
fs1,fsi2 pvsifd ain,2048,512,1 ; ifd analysis
fst partials fs1,fsi2,.003,1,3,500 ; partial tracking
aout sinsyn fst, 1.5, 500, 1 ; resynthesis (up a 5th)
out aout
</pre>
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</div>
<p><br class="example-break" />
</p>
<p>
The example above shows partial tracking of an ifd-analysis signal and
cubic-phase additive resynthesis.
</p>
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<div class="refsect1" title="Credits">
<a id="id3198018"></a>
<h2>Credits</h2>
<p>
</p>
<table border="0" summary="Simple list" class="simplelist">
<tr>
<td>Author: Victor Lazzarini</td>
</tr>
<tr>
<td>June 2005 </td>
</tr>
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<p>
</p>
<p>New plugin in version 5</p>
<p>November 2004.</p>
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