Options and their meanings are:
-I Identify program and exit.
-i item Select input item number and type. -a Output annotations calculated from thresholded track, rather than the track itself. -t threshold Supply threshold for annotation output. Default 0.5.
-A Output track is size of peak in autocorrelation function. -E Output track is energy. -R Output track is first reflection coefficient. -Z Output track is zero-crossing rate. -N Output normalised track values rather than raw scores
1.xx Speech waveform.
2.xx Lx waveform.
16 Voicing degree.