voice compression algorithm changeover system and method using digital signal processor

摘要

PURPOSE: A system and a method for converting a voice compression algorithm using a signal processor are provided to convert the voice compression algorithm in real time without interrupting service. CONSTITUTION: A system for converting a voice compression algorithm using a signal processor includes a voice matching circuit(107), a PCM CODEC(106), a digital signal processor(101), a host processor(102), and a telephone network matching circuit(105). The voice matching circuit matches a voice signal from a handset(108) with an analog voice signal. The PCM CODEC converts the analog voice signal into a digital signal. The digital signal processor compresses the digital signal through a compression algorithm and stores the compressed signal. The host processor receives the compressed signal and controls transmission/reception of the signal between a DTMF transceiver(103) and a modem(104) through a telephone network. The telephone network matching circuit converts the signal output to the DTMF transceiver and the modem into a transmission signal of the telephone network.