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<section id="data-signal-conversion-py-conversion-from-number-to-audio-stream">
<h1>01-data-signal-conversion.py - Conversion from number to audio stream.<a class="headerlink" href="#data-signal-conversion-py-conversion-from-number-to-audio-stream" title="Permalink to this heading">¶</a></h1>
<p>The Stream object is a new type introduced by pyo to represent an
audio signal as a vector of floats. It is sometimes useful to be
able to convert simple numbers (python’s floats or integers) to
audio signal or to extract numbers from an audio stream.</p>
<p>The Sig object converts a number to an audio stream.</p>
<p>The PyoObject.get() method extracts a float from an audio stream.</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"># A python integer (or float).</span>
<span class="n">anumber</span> <span class="o">=</span> <span class="mi">100</span>
<span class="c1"># Conversion from number to an audio stream (vector of floats).</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/controls.html#pyo.Sig" title="pyo.lib._core.Sig"><span class="n">astream</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="n">anumber</span><span class="p">)</span>
<span class="c1"># Use a Print (capital "P") object to print an audio stream.</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/utils.html#pyo.Print" title="pyo.lib.utils.Print"><span class="n">pp</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/utils.html#pyo.Print" title="pyo.lib.utils.Print"><span class="n">Print</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">astream</span></a><span class="p">,</span> <span class="n">interval</span><span class="o">=</span><span class="mf">0.1</span><span class="p">,</span> <span class="n">message</span><span class="o">=</span><span class="s2">"Audio stream value"</span><span class="p">)</span>
<span class="c1"># Use the get() method to extract a float from an audio stream.</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"Float from audio stream : "</span><span class="p">,</span> <span class="n">astream</span><span class="o">.</span><span class="n">get</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>
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