A new channel bank with block companding
Abstract
Performance improvement of the nearly instantaneous companding PCM (or block companding PCM) is discussed. A simplified algorithm is proposed. The design and performance of a channel bank adopting the proposed algorithm is described. The channel bank can transmit 44 voiceband signals on a standard T1 line. It provides commercially acceptable speech quality as well as sufficient transparancy for voiceband data up to 4800 bits/s.
- Publication:
-
IEEE Transactions on Communications
- Pub Date:
- April 1982
- Bibcode:
- 1982ITCom..30..574N
- Keywords:
-
- Channel Capacity;
- Companding;
- Pulse Code Modulation;
- Signal Encoding;
- Voice Communication;
- Algorithms;
- Computerized Simulation;
- Performance Prediction;
- Systems Simulation;
- Transmission Efficiency;
- Communications and Radar