Function aubio_sys::aubio_zero_crossing_rate

pub unsafe extern "C" fn aubio_zero_crossing_rate(v: *mut fvec_t) -> smpl_t

zero-crossing rate (ZCR)

The zero-crossing rate is the number of times a signal changes sign, divided by the length of this signal.

\param v vector to compute ZCR from

\return zero-crossing rate of v