摘要
针对声音分析处理中相位信息采集的重要性,提出了一种基于FPGA的四通道同步声音采集系统的设计。电路系统中以FPGA芯片作为主控单元,采用有限状态机的方法通过硬件描述语言设计实现了对模数转换器AD7864的控制以及数据的采集和传输。数据存储介质采用SD卡,所实现的声音数据采集系统具有体积小、存储容量大、灵活性强等特点。
Aiming at the importance of sound phase information acquisition in the analysis and processing of sound,this paper presents a design of sound acquisition system with four synchronous channels based on FPGA which is used as the main control unit in the circuit system. With the hardware description language,it uses finite state machine to achieve the control on analog to digital converter AD7864 and the data acquisition and transmission. The SD card is used as data storage memory,and the characteristic of sound acquisition system is of small volume,large storage capacity and high flexibility etc.
出处
《山西电子技术》
2015年第2期42-43,共2页
Shanxi Electronic Technology
基金
太原科技大学省级大学生创新创业计划项目(2013256)
太原科技大学校级大学生创新创业计划项目(xj2013003)
太原科技大学校博士科研启动基金项目(20132001)
关键词
FPGA
声采集
SD卡
硬件描述语言
FPGA
sound acquisition
SD card
hardware description language
