摘要
变调是一种用途广泛的音频处理手段,但有关的技术资料很少,并且介绍得不详细。由此提出了一种频域实现的算法,能有效实现变调不变时间,并达到较好的相位连续性,实验证实效果良好。
Shifting the pitch of digital audio is a widely used method for audio processing.However,relevant materials are hard to find and lack of details.This paper presents an algorithm in frequ ency domain.It shifts the pitch without changing the time,and provides relati vely good phase continuity.Ex-periment shows that it is effective.
出处
《电声技术》
北大核心
2003年第6期18-20,共3页
Audio Engineering
关键词
数字音频
变调算法
内插
快速离散傅里叶变换
pitch shift
decimation
interpolation
fast discrete Fourier transform
