Real-time iterative spectrum inversion with look-ahead

被引：12

作者：

Zhu, Xinglei ^{[1
]}

Beauregard, Gerald T. ^{[2
]}

Wyse, Lonce ^{[3
]}

机构：

[1] Inst Infocomm Res, Singapore, Singapore

[2] Muvee Technol, Singapore, Singapore

[3] Inst Infocomm Res, Singapore, Singapore

来源：

2006 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO - ICME 2006, VOLS 1-5, PROCEEDINGS | 2006年

关键词：

D O I：

10.1109/ICME.2006.262424

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In this paper, we present an algorithm for Real-time Iterative Spectrogram Inversion (RTISI) with Look-Ahead (RTISI-LA). RTISI-LA reconstructs a time-domain signal from a given sequence of short-time Fourier transform magnitude (STFTM) spectra without phase information. Whereas RTISI [1] reconstructs the current frame using only magnitude spectra information for previous frames and the current frame, RTISI-LA also uses magnitude spectra for a small number future frames. This allows RTISI-LA to achieve substantially higher signal-to-noise (SNR) performance than either RTISI or the Griffin & Lim method [2][3] with an equivalent computational load, while retaining the real-time properties of RTISI.

引用

页码：229 / +

页数：2

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