Frames of 1152 samples
   1152 / (44100 / sec) ~~ (1/260) sec ~~ 4 msec

1152 samples is two "granules" of 576 samples


1152 samples divided into 32 frequency ranges
      32 frequency ranges divided into 18 smaller bads
      576 bands in all

Masking threshold -- hiding softer sounds at a close frequency

Are their sharp transistions in the music