ncies.</p>
<dl class="simple">
<dt><strong>Arguments</strong>:</dt><dd><ul class="simple">
<li><p><strong>interval</strong> (int, optional): The fraction of octave to use in one interval. Default: 1.</p></li>
<li><p><strong>start_freq</strong> (float, optional): The starting frequency in Hz. Default: 31.25.</p></li>
<li><p><strong>end_freq</strong> (float, optional): The ending frequency in Hz. Default: 16000.</p></li>
</ul>
</dd>
<dt><strong>Returns</strong>:</dt><dd><ul class="simple">
<li><p>central_freq