Forward and backward LP ELS-based time-varying complex speech analysis based on output error method

Author

Funaki, Keiichi

Author_Institution

Comput. & Networking Center, Ryukyus Univ., Okinawa, Japan

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

741

Lastpage

744

Abstract

We have already proposed the ELS-based time-varying complex AR (TV-CAR) speech analysis based on forward LP as well as forward and backward LP in which the equation error is modeled by an AR model to whiten the error. The methods are based on an equation error method and can estimate unbiased speech spectrum due to the whitened equation error. It can be considered that these speech analysis methods may be suitable for a front-end of robust speech recognition and packet loss concealment on VoIP. This paper presents output error based ELS TV-CAR speech analysis algorithm and compares the performance with the equation error based method.

Keywords

error analysis; least squares approximations; speech processing; speech recognition; time-varying systems; extended least square analysis; output error method; packet loss concealment; speech analysis; speech recognition; speech spectrum; Equations; Filters; Least squares methods; Linear predictive coding; Mean square error methods; Robustness; Signal analysis; Speech analysis; Speech processing; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on

Print_ISBN

0-7803-8292-7

Type

conf

DOI

10.1109/ISSPIT.2003.1341227

Filename

1341227