NONVOICE PERFORMANCE OF THE 16 KBIT S LD-CELP ALGORITHM/

Recently, CCITT adopted a Low-Delay Code Excited Linear Predictive (LD -CELP) algorithm as a new recommendation for the coding of telephone b andwidth speech at 16 kbit/s with ''toll quality''. In this paper, the performance of the LD-CELP algorithm with non-voice signals is presen ted and compared with 64 kbit/s PCM. From these results it can be dete rmined that the LD-CELP, in a single encoding/decoding configuration, is acceptably transparent to network signaling as well as voiceband da ta at rates not exceeding 2.4 kbit/s.