Description: Based on the ARM7 TDMI of SoC chip AC97 module and chip CODEC UCB1400, the use of ITU T of G. 721 algorithm design voice processing system, a low-end RISC-based voice system design nuclear program. The program combines the chip SoC module eSRAM performance optimization through the tape on the actual prototype verification, coding rate of 19. 88 KB/s, decode rate of 22. 68 KB/s, reached a voice in real-time requirements.
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