摘要
本文设计了一个方便初学者调音的吉他调音器,以FPGA为核心,通过拾音器拾取琴弦音信号,然后通过放大送入AD7991芯片中进行模数转换。通过I2C接口实现AD7991与FPGA的通信,来实现频率的调节。
This paper introduces the design of a guitar tuner which is easy for beginners.The design takes FPGA as the core,by picking up the strings sound signal with the pickup,then amplified and input AD7991 chip with analog to digital conversion.At last,communicate with FPGA through the I2C interface,to achieve the frequency regulation.
出处
《邢台职业技术学院学报》
2013年第3期87-91,共5页
Journal of Xingtai Polytechnic College
