Title :
Forward and backward LP ELS-based time-varying complex speech analysis based on output error method
Author_Institution :
Comput. & Networking Center, Ryukyus Univ., Okinawa, Japan
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;
Conference_Titel :
Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on
Print_ISBN :
0-7803-8292-7
DOI :
10.1109/ISSPIT.2003.1341227
