Options and their meanings are:
-I Identify program and version number.
-i item Select input item number.
-n ncoeff Select number of coeffients to calculate. Default: 16.
-l low_frequency Specify lowest frequency of filterbank. Default: 0Hz.
-h high_frequency Specify highest frequency of filterbank. Default: half input sample rate.
-r frame_rate Specify frame rate for output. Default 100 frames/sec.
-e Append the log signal energy to the output frame.
-F Store filter output rather than cepstral coefficents;
-p Do not pre-emphasise signal.
-d1 Add first order delta cepstral coeffs to output vector.
-d2 Add first and second order delta cepstral coeffs to output vector.
1.xx Any speech waveform.
11 Mel-scaled cepstral coefficients.