摘要
对一阶、二阶可变参数数字均衡器的设计进行了研究,给出了数字均衡器的数学模型,得出了数字均衡器的频响特性曲线,分析了参数变化对数字均衡器频响的影响,并进行了实例分析。结果表明,对音乐信号处理,按照频响要求设定好均衡器的可变参数,就可很方便地设计出满足要求的数字均衡器,达到改善音质的目的。
The first-order and second-order variable parameter digital equalizer are studied in this paper. The mathematic model of the digital equalizer is given out. The frequency response characteristic curve of digital equalizer was obtained. The impact of the parameter variation on frequency response of digital equalizer is analyzed. The experimental results show that it is easy to design the digital equalizer which can meet the demands of music signal processing if the variable parameters are set according to the required frequency response. Therefore, the quality of sounds is improved.
出处
《现代电子技术》
2011年第7期100-103,106,共5页
Modern Electronics Technique
基金
湖南省教育厅重点项目资助(10A046)
关键词
音乐信号
数字信号处理
频谱
可变参数
数字均衡器
music signal
digital signal processing
spectrum
varying parameter
digital equalizer
