The 1st sensible implementation of an audio perceptual coder (OCF) in components (Krasner's components was as well cumbersome and gradual for realistic use), was an implementation of the psychoacoustic rework coder dependant on Motorola 56000 DSP chips. A fundamental, 8GB design with not much of the screen (suitable for listening http://www.lawrence.com/users/sistercourt81/