sd">        The discrete short-time Fourier transform</span>

<span class="sd">    f : np.ndarray [shape=(K, )], real-valued</span>
<span class="sd">        Center frequencies of all Fourier bins given in Hertz</span>

<span class="sd">    t : np.ndarray [shape=(M+1, )], real-valued</span>
<span class="sd">        Time instances where the respective Fourier spectra were computed, given in seconds</span>

<span class="sd">    &quot;&quot;&quot;</span>
    <span class="c1"># Pre-calculations</span>
    <span 