# --use-energy=false  # non default option. False -> Use C0 instead energy
# NUMCEPS in HTK is without C0: there 12 here 13 - default
--low-freq=125
--high-freq=3800
# --htk-compat
# --remove-dc-offset  # equivalent ZMEANSOURCE in HTK
# --subtract-mean  # not recommended to do it this way