Tandem-straight: A temporally stable power spectral representation for periodic signals and applications to interference-free spectrum, F0, and aperiodicity estimation

被引：242

作者：

Kawahara, H. ^{[1
]}

Morise, M. ^{[1
]}

Takahashi, T. ^{[1
]}

Nisimura, R. ^{[1
]}

Irino, T. ^{[1
]}

Banno, H. ^{[2
]}

机构：

[1] Wakayama Univ, Fac Syst Engn, 930 Sakaedani, Wakayama 6408510, Japan

[2] Meijo Univ, Nagoya, Aichi 4688502, Japan

来源：

2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12 | 2008年

关键词：

periodic signal; power spectrum; consistent sampling; periodicity; speech processing;

D O I：

10.1109/ICASSP.2008.4518514

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A simple new method for estimating temporally stable power spectra is introduced to provide a unified basis for computing an interference-free spectrum, the fundamental frequency (F0), as well as aperiodicity estimation. F0 adaptive spectral smoothing and cepstral liftering based on consistent sampling theory are employed for interference-free spectral estimation. A perturbation spectrum, calculated from temporally stable power and interference-free spectra, provides the basis for both F0 and aperiodicity estimation. The proposed approach eliminates ad-hoc parameter tuning and the heavy demand on computational power, from which STRAIGHT has suffered in the past.

引用

页码：3933 / +

页数：2