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<section id="fixed-control-py-number-as-argument">
<h1>01-fixed-control.py - Number as argument.<a class="headerlink" href="#fixed-control-py-number-as-argument" title="Permalink to this heading">¶</a></h1>
<p>Audio objects behaviour can be controlled by passing
value to their arguments at initialization time.</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="n">s</span><span class="o">.</span><span class="n">amp</span> <span class="o">=</span> <span class="mf">0.1</span>
<span class="c1"># Sets fundamental frequency</span>
<span class="n">freq</span> <span class="o">=</span> <span class="mi">200</span>
<span class="c1"># Approximates a triangle waveform by adding odd harmonics with</span>
<span class="c1"># amplitude proportional to the inverse square of the harmonic number.</span>
<span class="n">h1</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/generators.html#pyo.Sine" title="pyo.lib.generators.Sine"><span class="n">Sine</span></a><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="n">freq</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span><span class="o">.</span><span class="n">out</span><span class="p">()</span>
<span class="n">h2</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/generators.html#pyo.Sine" title="pyo.lib.generators.Sine"><span class="n">Sine</span></a><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="n">freq</span> <span class="o">*</span> <span class="mi">3</span><span class="p">,</span> <span class="n">phase</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">1.0</span> <span class="o">/</span> <span class="nb">pow</span><span class="p">(</span><span class="mi">3</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">h3</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/generators.html#pyo.Sine" title="pyo.lib.generators.Sine"><span class="n">Sine</span></a><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="n">freq</span> <span class="o">*</span> <span class="mi">5</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">1.0</span> <span class="o">/</span> <span class="nb">pow</span><span class="p">(</span><span class="mi">5</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">h4</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/generators.html#pyo.Sine" title="pyo.lib.generators.Sine"><span class="n">Sine</span></a><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="n">freq</span> <span class="o">*</span> <span class="mi">7</span><span class="p">,</span> <span class="n">phase</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">1.0</span> <span class="o">/</span> <span class="nb">pow</span><span class="p">(</span><span class="mi">7</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">h5</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/generators.html#pyo.Sine" title="pyo.lib.generators.Sine"><span class="n">Sine</span></a><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="n">freq</span> <span class="o">*</span> <span class="mi">9</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">1.0</span> <span class="o">/</span> <span class="nb">pow</span><span class="p">(</span><span class="mi">9</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">h6</span> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/generators.html#pyo.Sine" title="pyo.lib.generators.Sine"><span class="n">Sine</span></a><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="n">freq</span> <span class="o">*</span> <span class="mi">11</span><span class="p">,</span> <span class="n">phase</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="mf">1.0</span> <span class="o">/</span> <span class="nb">pow</span><span class="p">(</span><span class="mi">11</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="c1"># Displays the final waveform</span>
<a class="sphinx-codeautolink-a" href="../../api/classes/analysis.html#pyo.Scope" title="pyo.lib.analysis.Scope"><span class="n">sp</span></a> <span class="o">=</span> <a class="sphinx-codeautolink-a" href="../../api/classes/analysis.html#pyo.Scope" title="pyo.lib.analysis.Scope"><span class="n">Scope</span></a><span class="p">(</span><span class="n">h1</span> <span class="o">+</span> <span class="n">h2</span> <span class="o">+</span> <span class="n">h3</span> <span class="o">+</span> <span class="n">h4</span> <span class="o">+</span> <span class="n">h5</span> <span class="o">+</span> <span class="n">h6</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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