【摘 要】
：
基于ARM7TDMI的SoC片内AC97模块和片外CODECUCB1400,采用ITUT的G.721算法设计语音处理系统;提出一种基于低端RISC核的语音系统设计方案。该方案结合SoC的片内eSRAM模块进行性
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基于ARM7TDMI的SoC片内AC97模块和片外CODECUCB1400,采用ITUT的G.721算法设计语音处理系统;提出一种基于低端RISC核的语音系统设计方案。该方案结合SoC的片内eSRAM模块进行性能优化;通过在流片后的实际样机上验证,编码速率为19.88KB/s,解码速率为22.68KB/s,达到了语音实时性要求。
Based on ARM7TDMI SoC chip AC97 module and chip CODECUCB1400, ITUT’s G.721 algorithm is used to design the speech processing system. A low-end RISC core speech system design is proposed. The scheme combines the on-chip eSRAM module of SoC for performance optimization. The verification rate of the program is 19.88KB / s and the decoding rate is 22.68KB / s, which meets the real-time requirement of voice.
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