--window-type=hamming # disable Dans window, use the standard
  --sample-frequency=16000 
  --use-energy=false    # only fbank outputs
  
  --low-freq=64         # typical setup from Frantisek Grezl
  --high-freq=8000
  --dither=1
  
  --num-mel-bins=40     # 16kHz so we use 40 bins (@ 8 filters/octave to get closer to 40 filters/16Khz used by IBM)
  #--htk-compat=true     # try to make it compatible with HTK