计算机技术与发展2019，Vol.29Issue(3)：169-172,4.DOI:10.3969/j.issn.1673-629X.2019.03.035
基于Avalon总线的音频频谱分析系统设计与实现
Design and Implementation of Audio Frequency Spectrum Analysis System Based on Avalon Bus
摘要
Abstract
With the development of electronic and communication technology, the digital audio processing technologies such as digital audio broadcasting and multimedia communication have been widely used in society and increasingly profound impact on people's lives. Currently, most tuners on the market use the principle of vibration, and some high-end tuners will use the sound principle and vibration principle to coordinate the tuning. The instruments on the market are small and portable, but they need to be improved in accuracy, and there are fewer existing tuners. In order to improve the recognition accuracy and make recognition device miniaturized, based on the Avalon bus technology in FPGA and the fast Fourier transform, we design and implement a real-time and efficient audio spectrum analysis system. This system can complete real-time identification and analysis for a variety of music signal, overcoming the limitation of the traditional tuner, tuning the many kinds of musical instruments, which can greatly improve the intonation of the instrument and overcome the limit of a tuner only adjusting a musical instrument, with improvement of the efficiency of the tuner.关键词
FPGA/Nios Ⅱ系统/Avalon总线/频谱分析/快速傅里叶变换Key words
FPGA/Nios Ⅱ system/Avalon bus/spectrum analysis/FFT分类
信息技术与安全科学引用本文复制引用
姚梦茹,胡永兵,李慧..基于Avalon总线的音频频谱分析系统设计与实现[J].计算机技术与发展,2019,29(3):169-172,4.基金项目
国家自然科学基金(61272317) （61272317）
