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Extraction of melody from polyphonic music using modified morlet wavelet

机译:用改进的Morlet小波从复音音乐中提取旋律

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摘要

In this paper, the extraction of melody for polyphonic music is discussed. The method proposes a simple but effective modification in the Morlet wavelet as a modified Morlet wavelet (MMW). The pitch detection concept is applied to the transformed wavelet music signal for primary melody estimation and extraction. The proposed method is then compared with three other methods reported in the literature (the method focused on Short Time Fourier Transform, multi-resolution Fast Fourier Transform, and Morlet Wavelet). The percentage gross pitch error (GPE) parameter is considered for purposes of comparison. In comparison, it is observed that the proposed approach has the lowest GPE. The simulation results also present a lower percentage error in the predominant pitch frequency estimation for the proposed method.
机译:在本文中,讨论了对多相音乐的旋律的提取。该方法提出了Morlet小波的简单但有效修改作为修改的Morlet小波(MMW)。俯仰检测概念应用于用于初级旋律估计和提取的变换的小波音乐信号。然后将该方法与文献中报道的三种方法进行比较(专注于短时间傅里叶变换,多分辨率快速傅里叶变换和Morlet小波)的方法。用于比较目的,考虑百分比总高速误差(GPE)参数。相比之下,观察到所提出的方法具有最低的GPE。仿真结果还呈现了所提出的方法的主要音高频率估计中的较低百分比误差。

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