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<div class="refentry" title="mute">
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<h2>
<span class="refentrytitle">mute</span>
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<p>mute —
Mutes/unmutes new instances of a given instrument.
</p>
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<div class="refsect1" title="Description">
<a id="idp32591688"></a>
<h2>Description</h2>
<p>
Mutes/unmutes new instances of a given instrument.
</p>
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<div class="refsect1" title="Syntax">
<a id="idp32585720"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>mute</strong></span> insnum [, iswitch]</pre>
<pre class="synopsis"><span class="command"><strong>mute</strong></span> "insname" [, iswitch]</pre>
</div>
<div class="refsect1" title="Initialization">
<a id="idp32587400"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>insnum</em></span> -- instrument number. Equivalent to <span class="emphasis"><em>p1</em></span> in a score <a class="link" href="i.html" title="i Statement (Instrument or Note Statement)"><em class="citetitle">i statement</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>iswitch</em></span> (optional, default=0) -- represents a switch to mute/unmute an instrument. A value of 0 will mute new instances of an instrument, other values will unmute them. The default value is 0.
</p>
</div>
<div class="refsect1" title="Performance">
<a id="idp32638240"></a>
<h2>Performance</h2>
<p>
All new instances of instrument inst will me muted (iswitch = 0) or unmuted (iswitch not equal to 0). There is no difficulty with muting muted instruments or unmuting unmuted instruments. The mechanism is the same as used by the score <a class="link" href="q.html" title="q Statement"><em class="citetitle">q statement</em></a>. For example, it is possible to mute in the score and unmute in some instrument.
</p>
<p>
Muting/Unmuting is indicated by a message (depending on message level).
</p>
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<div class="refsect1" title="Examples">
<a id="idp32640112"></a>
<h2>Examples</h2>
<p>
Here is an example of the mute opcode. It uses the file <a class="ulink" href="examples/mute.csd" target="_top"><em class="citetitle">mute.csd</em></a>.
</p>
<div class="example">
<a id="idp32641088"></a>
<p class="title">
<strong>Example 501. Example of the mute 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">;;;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 mute.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="comment">; Mute Instrument #2.</span>
<span class="opc">mute</span> 2
<span class="comment">; Mute Instrument three.</span>
<span class="opc">mute</span> "three"
<span class="oblock">instr</span> 1
a1 <span class="opc">oscils</span> 0.2, 440, 0
<span class="opc">outs</span> a1, a1
<span class="oblock">endin</span>
<span class="oblock">instr</span> 2 <span class="comment">; gets muted</span>
a1 <span class="opc">oscils</span> 0.2, 880, 0
<span class="opc">outs</span> a1, a1
<span class="oblock">endin</span>
<span class="oblock">instr</span> three <span class="comment">; gets muted</span>
a1 <span class="opc">oscils</span> 0.2, 1000, 0
<span class="opc">outs</span> a1, a1
<span class="oblock">endin</span>
<span class="csdtag"></CsInstruments></span>
<span class="csdtag"><CsScore></span>
<span class="stamnt">i</span> 1 0 1
<span class="stamnt">i</span> 2 0 1
<span class="stamnt">i</span> "three" 0 1
<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" />
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<div class="refsect1" title="Credits">
<a id="idp32643384"></a>
<h2>Credits</h2>
<p>New in version 4.22</p>
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