基于DSP5416的语音采集与保密通信的实现

设计了基于数字信号处理器TMS320VC5416的语音保密通信系统。主要包括语音信号采集和数字信号处理2个模块,采用I2 C模式控制和SPI模式传输信号实现无缝连接。语音信号采集模块采用TLV320AIC23芯片,进行语音信号的采集和编解码。核心处理器采用循环异或算法,对音频信号进行加密或解密处理。设计系统语音采集与传输主程序和保密子程序,并调试实现了保密通信功能。测试结果表明,该系统实现方便、算法精度高、抗干扰性能力强,能够满足实时信号处理和保密通信的基本要求。

Realization of the voice acquisition and secrecy communication based on DSP5416

Design of speech secrecy communication system based on digital signal processor of TMS320VC5416 is proposed,which includes speech signal acquisition module and digital signal processing module, and the modules can achieve connection using the I2C control mode and SPI transmit signals mode. The speech signal acquisition utilizing TLV320AIC23 voice chip for signal collection and encoding and decoding. The core digital signal processing module realizes secure communication with cyclic XOR algorithm to encrypt or decrypt the audio signal processing. And then the main program and the confidentiality of subroutines have been designed and debugged to achieve secure communication. The test results show that the system can achieve high precision algorithm, and strong anti-interference performance,and it meets the basic reouirements of real-time signal processing and secure communications.