Adaptive Digital Pulse Code Modulation
(ADPCM) A compression technique which records only the difference between samples and adjusts the coding scale dynamically to accomodate large and small differences. ADPCM is simple to implement, but introduces much noise.[Used where? Does the Sony minidisk use ADPCM or ATRAC?]
Last updated: 1998-12-10
Adaptive Communication Environment ♦ Adaptive Digital Pulse Code Modulation ♦ adaptive learning
Try this search on Wikipedia, Wiktionary, Google, OneLook.