ass="p">,</span> <span class="n">np</span><span class="o">.</span><span class="n">ndarray</span><span class="p">]:</span>
    <span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Computes the Short-Time Fourier Transform (STFT) of the input audio signal.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    x : np.ndarray, real-valued</span>
<span class="sd">        Signal to be transformed</span>

<span class="sd">    ana_hop : int or np.ndarr