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<h2>
<span class="refentrytitle">event_i</span>
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<p>event_i —
Generates a score event from an instrument.
</p>
</div>
<div class="refsect1" title="Description">
<a id="idp19418288"></a>
<h2>Description</h2>
<p>
Generates a score event from an instrument.
</p>
</div>
<div class="refsect1" title="Syntax">
<a id="idp19463264"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>event_i</strong></span> "scorechar", iinsnum, idelay, idur, [, ip4] [, ip5] [, ...]</pre>
<pre class="synopsis"><span class="command"><strong>event_i</strong></span> "scorechar", "insname", idelay, idur, [, ip4] [, ip5] [, ...]</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp19465072"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em><span class="quote">“<span class="quote">scorechar</span>”</span></em></span> -- A string (in double-quotes) representing the first p-field in a score statement. This is usually <a class="link" href="e.html" title="e Statement"><em class="citetitle"><span class="quote">“<span class="quote">e</span>”</span></em></a>, <a class="link" href="f.html" title="f Statement (or Function Table Statement)"><em class="citetitle"><span class="quote">“<span class="quote">f</span>”</span></em></a>, or <a class="link" href="i.html" title="i Statement (Instrument or Note Statement)"><em class="citetitle"><span class="quote">“<span class="quote">i</span>”</span></em></a>.
</p>
<p>
<span class="emphasis"><em><span class="quote">“<span class="quote">insname</span>”</span></em></span> -- A string (in double-quotes) representing a named instrument.
</p>
<p>
<span class="emphasis"><em>iinsnum</em></span> -- The instrument to use for the event. This corresponds to the first p-field, p1, in a score statement.
</p>
<p>
<span class="emphasis"><em>idelay</em></span> -- When (in seconds) the event will occur from the current performance time. This corresponds to the second p-field, p2, in a score statement.
</p>
<p>
<span class="emphasis"><em>idur</em></span> -- How long (in seconds) the event will happen. This corresponds to the third p-field, p3, in a score statement.
</p>
<p>
<span class="emphasis"><em>ip4, ip5, ...</em></span> (optional) -- Parameters representing additional p-field in a score statement. It starts with the fourth p-field, p4.
</p>
</div>
<div class="refsect1" title="Performance">
<a id="idp19469936"></a>
<h2>Performance</h2>
<p> The event is added to the queue at initialisation time.</p>
<div class="note" title="Note" style="margin-left: 0.5in; margin-right: 0.5in;">
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<th align="left">Note</th>
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<td align="left" valign="top">
<p> Note that the <span class="emphasis"><em>event_i</em></span> opcode cannot accept string p-fields. If you need to pass strings when instantiating an instrument, use the <a class="link" href="scoreline.html" title="scoreline"><em class="citetitle">scoreline</em></a> or <a class="link" href="scoreline_i.html" title="scoreline_i"><em class="citetitle">scoreline_i</em></a> opcode.</p>
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<div class="refsect1" title="Examples">
<a id="idp19472024"></a>
<h2>Examples</h2>
<p>
Here is an example of the event_i opcode. It uses the file <a class="ulink" href="examples/event_i.csd" target="_top"><em class="citetitle">event_i.csd</em></a>.
</p>
<div class="example">
<a id="idp19472920"></a>
<p class="title">
<strong>Example 211. Example of the event_i opcode.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<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 event_i.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="ohdr">seed</span> 0
gisine <span class="ohdr">ftgen</span> 0, 0, 2^10, 10, 1
<span class="oblock">instr</span> 1 <span class="comment">;master instrument</span>
ininstr <span class="op">=</span> 10 <span class="comment">;number of called instances</span>
indx <span class="op">=</span> 0
<span class="olabel">loop</span><span class="op">:</span>
ipan <span class="opc">random</span> 0, 1
ifreq <span class="opc">random</span> 100, 1000
iamp <span class="op">=</span> 1<span class="op">/</span>ininstr
<span class="opc">event_i</span> "i", 10, 0, p3, iamp, ifreq, ipan
<span class="octrl">loop_lt</span> indx, 1, ininstr, <span class="olabel">loop</span>
<span class="oblock">endin</span>
<span class="oblock">instr</span> 10
<span class="opc">print</span> p4, p5, p6
ipeak <span class="opc">random</span> 0, 1 <span class="comment">;where is the envelope peak</span>
asig <span class="opc">poscil3</span> p4, p5, gisine
aenv <span class="opc">transeg</span> 0, p3<span class="op">*</span>ipeak, 6, 1, p3<span class="op">-</span>p3<span class="op">*</span>ipeak, <span class="op">-</span>6, 0
aL,aR <span class="opc">pan2</span> asig<span class="op">*</span>aenv, p6
<span class="opc">outs</span> aL, aR
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span>1 0 10
<span class="stamnt">i</span>1 8 10
<span class="stamnt">i</span>1 16 15
<span class="stamnt">e</span>
<span class="csdtag"></CsScore></span>
<span class="csdtag"></CsoundSynthesizer></span>
</pre>
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<p><br class="example-break" />
</p>
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<div class="refsect1" title="See also">
<a id="idp19474760"></a>
<h2>See also</h2>
<p><a class="link" href="event.html" title="event"><em class="citetitle">event</em></a>,
<a class="link" href="schedule.html" title="schedule"><em class="citetitle">schedule</em></a>,
<a class="link" href="schedwhen.html" title="schedwhen"><em class="citetitle">schedwhen</em></a>,
<a class="link" href="schedkwhen.html" title="schedkwhen"><em class="citetitle">schedkwhen</em></a>,
<a class="link" href="schedkwhennamed.html" title="schedkwhennamed"><em class="citetitle">schedkwhennamed</em></a>,
<a class="link" href="scoreline.html" title="scoreline"><em class="citetitle">scoreline</em></a>,
<a class="link" href="scoreline_i.html" title="scoreline_i"><em class="citetitle">scoreline_i</em></a></p>
</div>
<div class="refsect1" title="Credits">
<a id="idp19477840"></a>
<h2>Credits</h2>
<p>Written by Istvan Varga.</p>
<p>New in Csound5</p>
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