Design two-pole all-pass filter. Similar to SoX implementation.
functional_allpass_biquad(waveform, sample_rate, central_freq, Q = 0.707)
(Tensor): audio waveform of dimension of
(int): sampling rate of the waveform, e.g. 44100 (Hz)
(float): central frequency (in Hz)
(float, optional): https://en.wikipedia.org/wiki/Q_factor (Default:
tensor: Waveform of dimension of