ace, in the previous example, the frequency 440 by a horizontal slider whose name will be <code>freq</code>, the default value <code>110</code>, the minimum value <code>40</code>, the maximum value <code>8000</code> and the step <code>1</code>:</p>
<!-- faust-run -->
<div class="faust-run"><img src="exfaust30/exfaust30.svg" class="mx-auto d-block">
<faust-editor><!--

import("stdfaust.lib");

process = os.osc(440 /*to replace*/) * hslider("gain", 0.1, 0, 1, 0.01);

--></faust-editor>
<br>
</div>
<!-- /faust