An accurate low complexity algorithm for frequency estimation in MDCT domain

被引：7

作者：

Zhu, Meng-Yao ^{[1
]}

Zheng, Wei ^{[1
]}

Li, Dong-Xiao ^{[1
]}

Zhang, Ming ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Informat Sci & Elect Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2008年 / 54卷 / 03期

关键词：

audio processing; frequency estimation; modified discrete cosine transforms; low complexity;

D O I：

10.1109/TCE.2008.4637582

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 addresses the extraction of frequency, amplitude, and phase of sinusoidal components directly from Modified Discrete Cosine Transform (MDCT) domain, which is broadly used in many digital audio applications. An efficient method is proposed for portable device based on the approximation of MDCT expression and the simple combinations of local maximum MDCT coefficients. BY extracting the frequency and amplitude of a stationary sinusoid, the experimental results demonstrate that the proposed algorithm produces accurate results with low computational complexity(1).

引用

页码：1022 / 1028

页数：7

共 8 条

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[4] Accurate estimation in the ODFT domain of the frequency, phase and magnitude of stationary sinusoids
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[J]. PROCEEDINGS OF THE 2001 IEEE WORKSHOP ON THE APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS, 2001, : 47 - 50
[5] *ISO IEC, 2005, 144963 ISOIEC 3
[6] MERDJANI S, 2003, P P 6 INT C DIG AUD
[7] SANGUK R, 2007, P AC SPEECH SIGN PRO
[8] YE W, 2003, J AUDIO ENG SOC, V51, P52

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