n class="sd">    Short-Time Fourier Transform&quot; by Griffin and Lim.</span>

<span class="sd">    Parameters</span>
<span class="sd">    ----------</span>
<span class="sd">    spec : np.ndarray [shape=(K,M+1)] , complex-valued</span>
<span class="sd">        A complex spectrogram generated by STFT.</span>

<span class="sd">    syn_hop : int</span>
<span class="sd">        hop size of the synthesis window</span>

<span class="sd">    win_length : int</span>
<span class="sd">        length of synthesis win