Function aubio_sys::aubio_filter_get_feedback

pub unsafe extern "C" fn aubio_filter_get_feedback(
    f: *const aubio_filter_t
) -> *mut lvec_t

returns a pointer to feedback coefficients \f$ a_i \f$

\param f filter object to get parameters from

\return a pointer to the \f$ a_0 ... a_i ... a_P \f$ coefficients