摘要
介绍了语音系统组成和AMBE-3000声玛器的基本原理,对基于AMBE-3000声码器语音系统的实现过程进行了详细阐述。本系统以FPGA为核心,利用全双工AMBE-3000声码器,实现了语音数据的双向数据传输。一方面FPGA作为主控芯片,分别对TLV320AIC32和AMBE-3000芯片的功能进行配置和控制;另一方面,FPGA实现TLV320AIC和AMBE-3000芯片之间的数据交互,并对数据进行处理。该系统在8 kHz低速、纯话音应用环境下,能够获得更好的语音质量,而且性能优于G.729。
The composition of speech system and the basic principle of AMBE-3000 are introduced. The accomplishment of speech system based on AMBE-3000 is described in detail. Speech data intercommunication based on FPGA is implemented by full-duplex AMBE-3000 vocoder hand, FPGA configures and controls TLV320AIC32 and AMBE-3000 as a master. On the other hand, data communications between TLV320AIC32 and AMBE-3000 are completed using FPGA. The system can achieve high voice quality at 8 kHz rate and in application of pure voice and its performance outperforms G. 729.
出处
《电声技术》
2014年第3期70-73,共4页
Audio Engineering
