Software simulation in GSM environment of Federal standard 1016 CELP vocoder

The working performance of the Federal standard 1016 CELP (4.8 kbps) vocoder in GSM environment is discussed, and compared with that of the VSELP vocoder of standard GSM half-rate traffic channel. The conclusions through results analysis and comparison are helpful to propel the development of a low-bit-rate speech coder in the next generation digital mobile communication system.