A Computationally Efficient Method for Polyphonic Pitch Estimation

被引：6

作者：

Zhou, Ruohua ^{[1
]}

Reiss, Joshua D. ^{[1
]}

Mattavelli, Marco ^{[2
]}

Zoia, Giorgio ^{[2
,3
]}

机构：

[1] Queen Mary Univ London, Ctr Digital Mus, Sch Elect Engn & Comp Sci, London E1 4NS, England

[2] Swiss Fed Inst Technol, Signal Proc Inst, CH-1015 Lausanne, Switzerland

[3] Creat Elect Syst SA, Dept Syst, CH-1212 Gd Lancy Geneva, Switzerland

来源：

EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2009年

基金：

英国工程与自然科学研究理事会;

关键词：

MUSIC; TRANSCRIPTION;

D O I：

10.1155/2009/729494

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a computationally efficient method for polyphonic pitch estimation. The method employs the Fast Resonator Time-Frequency Image (RTFI) as the basic time-frequency analysis tool. The approach is composed of two main stages. First, a preliminary pitch estimation is obtained by means of a simple peak-picking procedure in the pitch energy spectrum. Such spectrum is calculated from the original RTFI energy spectrum according to harmonic grouping principles. Then the incorrect estimations are removed according to spectral irregularity and knowledge of the harmonic structures of the music notes played on commonly used music instruments. The new approach is compared with a variety of other frame-based polyphonic pitch estimation methods, and results demonstrate the high performance and computational efficiency of the approach. Copyright (C) 2009 Ruohua Zhou et al.

引用

页数：11

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