Harmonic and Percussive Sound Separation Based on Mixed Partial Derivative of Phase Spectrogram

Natsuki Akaishi, K. Yatabe, Yasuhiro Oikawa
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引用次数: 1

Abstract

Harmonic and percussive sound separation (HPSS) is a widely applied pre-processing tool that extracts distinct (harmonic and percussive) components of a signal. In the previous methods, HPSS has been performed based on the structural properties of magnitude (or power) spectrograms. However, such approach does not take advantage of phase that contains useful information of the waveform. In this paper, we propose a novel HPSS method named MipDroP that relies only on phase and does not use information of magnitude spectrograms. The proposed MipDroP algorithm effectively examines phase through its mixed partial derivative and constructs a pair of masks for the separation. Our experiments showed that MipDroP can extract percussive components better than the other methods.
基于相位谱混合偏导数的谐波与冲击声分离
谐波与打击声分离(HPSS)是一种广泛应用的预处理工具,它可以提取信号中不同的(谐波和打击声)分量。在以前的方法中,HPSS是基于幅度(或功率)谱图的结构特性进行的。然而,这种方法没有利用包含有用波形信息的相位。在本文中,我们提出了一种新的仅依赖相位而不使用幅度谱图信息的HPSS方法,称为MipDroP。提出的MipDroP算法通过其混合偏导数有效地检测相位,并构造一对掩模进行分离。实验结果表明,MipDroP提取冲击成分的效果优于其他方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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