基于STM32的音频采集与传输系统设计  

Design of audio sampling and transmission system based on STM32

作　　者：许光 胡益群 曾倪香 袁昌权 XU Guang;HU Yi-qun;ZENG Ni-xiang;YUAN Chang-quan(Institute of 715,China Shipbuilding Industry Corporation,Hangzhou 310023,China)

机构地区：[1]中国船舶重工集团公司第715研究所,浙江杭州310023

出　　处：《电子设计工程》2020年第3期173-177,182,共6页Electronic Design Engineering

摘　　要：针对传统音频设备采样率低并且数据无法进行网络传输等问题,设计了以STM32为控制核心的音频采集系统,采集的数据通过以太网传输给后端设备。文章详细阐述了系统的软硬件设计,硬件设计主要包括音频采集电路、信号调理电路、STM32最小系统电路以及网络传输电路等;软件设计主要包括模数转换模块、微型网络协议栈、数据传输模块以及上位机测试程序等。试验表明系统工作稳定,具有一定的应用参考价值。In the past,audio sampling device always running at low sampling rate and hasno network transmission capability. Aiming at the defect above,an audio sampling system with Ethernet transmission function based on STM32 was designed. The hardware consistsof audio sampling circuit,signalconditioning circuit,and minimum system of STM32 and Ethernet transmission circuit. The ADC module,the micro network stack,the data transmission module and the upper test application has been designed for the whole software program. The experimental result shows that the system works stably,and has certain application reference value.

关 键 词：音频采集 信号调理 STM32最小系统 微型网络协议栈 

分 类 号：TN709[电子电信—电路与系统]