基于傅里叶变换和倒谱系数的电子音乐标记算法  

Electronic music marking algorithm based on Fourier transform and cepstrum coefficient

作　　者：范勇冠 FAN Yongguan(Jiangxi University of Technology,Nanchang 330098,China)

机构地区：[1]江西科技学院,江西南昌330098

出　　处：《现代电子技术》2020年第13期155-158,共4页Modern Electronics Technique

基　　金：江西科技学院校级教学改革课题:基于录音艺术的声乐教学模式研究(JG1801)。

摘　　要：为解决当前对电子音乐标记准确性差、分辨率低的问题,提出基于傅里叶变换和倒谱系数的电子音乐标记算法。首先结合傅里叶变换算法采集电子音乐的特征频谱,并进行特征信号的分辨,以此计算出电子音乐的倒谱系数,根据匹配后的倒谱系数对电子音乐进行高精度分辨处理,根据分辨结果实现对电子音乐特征数值的准确标记。最后通过实验证实,基于傅里叶变换和倒谱系数的电子音乐标记算法相对于传统方法具有更高的准确性和分辨率,充分满足研究要求。In view of the poor accuracy and low resolution of current electronic music marking,an electronic music marking algorithm based on Fourier transform and cepstrum coefficient is proposed.The characteristic spectrum of electronic music is collected by taking into account the Fourier transform algorithm,and the characteristic signal is distinguished to calculate the cepstrum coefficient of electronic music.According to the matched cepstrum coefficient,the electronic music is subjected to high⁃precision resolution processing,and the electronic music characteristic number is accurately marked according to the resolution result.In the end,the experiment proves that the electronic music marking algorithm based on Fourier transform and cepstrum coefficient has higher accuracy and resolution than the traditional method,which fully meets the research requirements.

关 键 词：傅里叶变换 倒谱系数 电子音乐 音乐速度 节拍 谱图 

分 类 号：TN911.1-34[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]