The primary practical implementation of the audio perceptual coder (OCF) in hardware (Krasner's hardware was much too cumbersome and gradual for useful use), was an implementation of the psychoacoustic rework coder depending on Motorola 56000 DSP chips. Considering that the guidance from Facebook is neither readily available nor presented any http://fmw.ppij.com/question2answer/index.php?qa=user&qa_1=sisterfact12