基于STM32的音频接口模块设计与实现  

Design of Audio Acquisition Module Based on STM32

作　　者：陈亚都 王洋洋 李瑞 CHEN Yadu;WANG Yangyang;LI Rui(Xi'an Aeronautics Computing Technique Research Institute,AVIC,Xi'an 710065,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710065

出　　处：《通信电源技术》2023年第1期22-24,共3页Telecom Power Technology

摘　　要：针对机载音频采集系统中音频信号失真高、噪声大等问题,设计一种多通道、低失真、低噪声的音频接口方案.首先介绍了音频接口模块的整体方案,其次详细介绍了模块的硬件设计和软件设计,最后进行了相关音频测试.经过测试,该设计能够实现多通道、低失真、低噪声音频信号的采集、输出及存储,可以广泛应用于航空航天等专用领域.Aiming at the problems of high distortion and noise of audio signal in airborne audio acquisition system,a multi-channel audio interface scheme with low distortion and noise is designed.Firstly,the overall scheme of the audio interface module is introduced.Secondly,the hardware design and software design of the module are introduced in detail.Finally,the related audio tests are carried out.After testing,the design can realize the acquisition,output and storage of multi-channel,low-distortion and low-noise audio signals,and can be widely used in aerospace and other special fields.

关 键 词：STM32 音频采集 音频编解码 串行音频接口(SAI) 

分 类 号：TM41[电气工程—电器]