ref-usage">
    <div class="sourceCode"><pre class="sourceCode r"><code><span><span class="fu">BasicMelSpectrogram</span><span class="op">(</span></span>
<span>  sample_rate <span class="op">=</span> <span class="fl">16000</span>,</span>
<span>  n_fft <span class="op">=</span> <span class="fl">400</span>,</span>
<span>  win_length <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  hop_length <span class="op">=</span> <span class="cn">NULL</span>,</span>
<span>  f_min <span class="op">=</