A Methodology for Evaluation Testing of Digital Circuit Multiplication Equipment (DCME)
17 October 1989
Digital Circuit Multiplication Equipment (DCME) concentrates a number of 64 kb/s Pulse Code Modulation (PCM) encoded input speech or voiceband data (VBD) circuits onto a reduced number of transmission channels. It achieves this compression by utilizing low rate encoding [typically Adaptive Differential Pulse Code Modulation (ADPCM)] and Digital Speech Interpolation (DSI).