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<section id="receiving-osc-messages-as-list-of-audio-streams">
<h1>Receiving OSC messages as list of audio streams<a class="headerlink" href="#receiving-osc-messages-as-list-of-audio-streams" title="Permalink to this heading">¶</a></h1>
<p><strong>04-receive-list.py</strong></p>
<p>OscListReceive receives list of values over a network via the Open Sound
Control protocol. It converts the values as audio streams that can be used
to control audio process.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <a class="sphinx-codeautolink-a" href="../../api/alphabetical.html#module-pyo" title="pyo"><span class="nn">pyo</span></a> <span class="kn">import</span> <span class="o">*</span>
<span class="n">s</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/server.html#pyo.Server" title="pyo.lib.server.Server"><span class="n">Server</span></a><span class="p">()</span><span class="o">.</span><span class="n">boot</span><span class="p">()</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/players.html#pyo.SfPlayer" title="pyo.lib.players.SfPlayer"><span class="n">source</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/players.html#pyo.SfPlayer" title="pyo.lib.players.SfPlayer"><span class="n">SfPlayer</span></a><span class="p">(</span><span class="s2">"../snds/flute.aif"</span><span class="p">,</span> <span class="n">loop</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">0.7</span><span class="p">)</span>
<span class="c1"># Receives a list of two values from a TouchOSC's XY pad and converts</span>
<span class="c1"># them as audio streams. All streams for a given address can be retrieve</span>
<span class="c1"># with the syntax: rec[address]. One can access the individual streams</span>
<span class="c1"># for an address with slicing: rec[address][0], rec[address][1], etc.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/opensndctrl.html#pyo.OscListReceive" title="pyo.lib.opensndctrl.OscListReceive"><span class="n">rec</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/opensndctrl.html#pyo.OscListReceive" title="pyo.lib.opensndctrl.OscListReceive"><span class="n">OscListReceive</span></a><span class="p">(</span><span class="n">port</span><span class="o">=</span><span class="mi">9002</span><span class="p">,</span> <span class="n">address</span><span class="o">=</span><span class="s2">"/4/xy"</span><span class="p">,</span> <span class="n">num</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="c1"># Sets initial values for the OSC streams. This allow the program to run with</span>
<span class="c1"># minimal behaviour even if no message have been sent on this address.</span>
<span class="n">rec</span><span class="o">.</span><span class="n">setValue</span><span class="p">(</span><span class="s2">"/4/xy"</span><span class="p">,</span> <span class="p">[</span><span class="mf">0.5</span><span class="p">,</span> <span class="mf">0.5</span><span class="p">])</span>
<span class="c1"># Assign the value on the X axis to the drive parameter, and</span>
<span class="c1"># the value on the Y axis to the slope (lowpass filter) parameter.</span>
<span class="n">disto</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/effects.html#pyo.Disto" title="pyo.lib.effects.Disto"><span class="n">Disto</span></a><span class="p">(</span><a class="sphinx-codeautolink-a" href="../../api/classes/players.html#pyo.SfPlayer" title="pyo.lib.players.SfPlayer"><span class="n">source</span></a><span class="p">,</span> <span class="n">drive</span><span class="o">=</span><a class="sphinx-codeautolink-a" href="../../api/classes/arithmetic.html#pyo.Sqrt" title="pyo.lib.arithmetic.Sqrt"><span class="n">Sqrt</span></a><span class="p">(</span><a class="sphinx-codeautolink-a" href="../../api/classes/opensndctrl.html#pyo.OscListReceive" title="pyo.lib.opensndctrl.OscListReceive"><span class="n">rec</span></a><span class="p">[</span><span class="s2">"/4/xy"</span><span class="p">][</span><span class="mi">0</span><span class="p">]),</span> <span class="n">slope</span><span class="o">=</span><a class="sphinx-codeautolink-a" href="../../api/classes/arithmetic.html#pyo.Sqrt" title="pyo.lib.arithmetic.Sqrt"><span class="n">Sqrt</span></a><span class="p">(</span><a class="sphinx-codeautolink-a" href="../../api/classes/opensndctrl.html#pyo.OscListReceive" title="pyo.lib.opensndctrl.OscListReceive"><span class="n">rec</span></a><span class="p">[</span><span class="s2">"/4/xy"</span><span class="p">][</span><span class="mi">1</span><span class="p">]),</span> <span class="n">mul</span><span class="o">=</span><span class="mf">0.5</span><span class="p">)</span><span class="o">.</span><span class="n">mix</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span><span class="o">.</span><span class="n">out</span><span class="p">()</span>
<span class="n">s</span><span class="o">.</span><span class="n">gui</span><span class="p">(</span><span class="nb">locals</span><span class="p">())</span>
</pre></div>
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