--window-type=hamming # disable Dans window, use the standard
--use-energy=false    # only fbank outputs
--sample-frequency=8000 # Cantonese is sampled at 8kHz

--low-freq=64         # typical setup from Frantisek Grezl
--high-freq=3800
--dither=1

--num-mel-bins=15     # 8kHz so we use 15 bins
--htk-compat=true     # try to make it compatible with HTK