Generate odd-tap Hilbert transform FIR coefficients.

The resulting stream can be used with afir filter for phase-shifting the signal by 90 degrees.

This is used in many matrix coding schemes and for analytic signal generation. The process is often written as a multiplication by i (or j), the imaginary unit.

The filter accepts the following options:

sample_rate, s

Set sample rate, default is 44100.

taps, t

Set length of FIR filter, default is 22051.

nb_samples, n

Set number of samples per each frame.

win_func, w

Set window function to be used when generating FIR coefficients.