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<section id="sending-audio-streams-as-open-sound-control-messages">
<h1>Sending audio streams as Open Sound Control messages<a class="headerlink" href="#sending-audio-streams-as-open-sound-control-messages" title="Permalink to this heading">¶</a></h1>
<p><strong>03-send-streams.py</strong></p>
<p>This program does not generate any sound. All it does is to produce
audio streams that are then send on an open port as OSC messages in
order to control a granulation process created in the example
<em>02-receive-streams.py</em>.</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>

<span class="c1"># Manual control of the density of grains per second.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">dens</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">Sig</span></a><span class="p">(</span><span class="mf">0.5</span><span class="p">)</span>
<span class="n">dens</span><span class="o">.</span><span class="n">ctrl</span><span class="p">(</span><span class="n">title</span><span class="o">=</span><span class="s2">"Density of grains per second"</span><span class="p">)</span>

<span class="c1"># Generate a normalized random position in the sound with interpolation.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/randoms.html#pyo.Randi" title="pyo.lib.randoms.Randi"><span class="n">pos</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/randoms.html#pyo.Randi" title="pyo.lib.randoms.Randi"><span class="n">Randi</span></a><span class="p">(</span><span class="nb">min</span><span class="o">=</span><span class="mf">0.00</span><span class="p">,</span> <span class="nb">max</span><span class="o">=</span><span class="mf">1.00</span><span class="p">,</span> <span class="n">freq</span><span class="o">=</span><span class="mf">0.1</span><span class="p">)</span>

<span class="c1"># Manual control of the transposition per grain.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">pit</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">Sig</span></a><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">pit</span><span class="o">.</span><span class="n">ctrl</span><span class="p">(</span><span class="n">title</span><span class="o">=</span><span class="s2">"Transposition per grain"</span><span class="p">)</span>

<span class="c1"># Manual control of the grain's duration.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">dur</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">Sig</span></a><span class="p">(</span><span class="mf">0.5</span><span class="p">)</span>
<span class="n">dur</span><span class="o">.</span><span class="n">ctrl</span><span class="p">(</span><span class="n">title</span><span class="o">=</span><span class="s2">"Grain duration"</span><span class="p">)</span>

<span class="c1"># Takes audio signals and sends their current value as OSC messages every buffer size.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/opensndctrl.html#pyo.OscSend" title="pyo.lib.opensndctrl.OscSend"><span class="n">send</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/opensndctrl.html#pyo.OscSend" title="pyo.lib.opensndctrl.OscSend"><span class="n">OscSend</span></a><span class="p">(</span>
    <span class="nb">input</span><span class="o">=</span><span class="p">[</span><a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">dens</span></a><span class="p">,</span> <a class="sphinx-codeautolink-a" href="../../api/classes/randoms.html#pyo.Randi" title="pyo.lib.randoms.Randi"><span class="n">pos</span></a><span class="p">,</span> <a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">pit</span></a><span class="p">,</span> <a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">dur</span></a><span class="p">],</span>
    <span class="n">port</span><span class="o">=</span><span class="mi">9000</span><span class="p">,</span>
    <span class="n">address</span><span class="o">=</span><span class="p">[</span><span class="s2">"/density"</span><span class="p">,</span> <span class="s2">"/position"</span><span class="p">,</span> <span class="s2">"/pitch_rand"</span><span class="p">,</span> <span class="s2">"/duration"</span><span class="p">],</span>
    <span class="n">host</span><span class="o">=</span><span class="s2">"127.0.0.1"</span><span class="p">,</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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