DocumentCode :
2282066
Title :
Selected applications of LPLE in speech processing
Author :
Schettini, Norelli ; Sankar, Ravi
Author_Institution :
Dept. of Electr. Eng., South Florida Univ., Tampa, FL
fYear :
2007
fDate :
22-25 March 2007
Firstpage :
524
Lastpage :
527
Abstract :
Linear prediction with low-frequency emphasis (LPLE), an all-pole modeling technique which emphasizes the lower frequency range of the input signal, was described by Alku and Backstrom (Alku, 2004). The method is based on first interpreting conventional linear predictive (LP) analyses of successive prediction orders with parallel structures using the concept of symmetric linear prediction. The experiments presented in this work are aimed to show that the LPLE method is well-suited for those speech processing and enhancement applications, where low-order all-pole models with improved modeling of the lowest formants are needed. This is done by replacing the LP block with a LPLE block. Distortion measures using Itakura distance and noise cancellation using a Wiener "type" filter were explored, utilizing the LPLE coefficients instead of LP coefficients.
Keywords :
Wiener filters; distortion measurement; linear predictive coding; speech coding; speech enhancement; Itakura distance; LPLE method; Wiener filter; all-pole modeling technique; linear prediction with low-frequency emphasis method; linear predictive analysis; noise cancellation; speech enhancement; speech processing; symmetric linear prediction; Auditory system; Distortion measurement; Frequency; Humans; Linear predictive coding; Nonlinear filters; Predictive models; Signal processing; Speech analysis; Speech processing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
SoutheastCon, 2007. Proceedings. IEEE
Conference_Location :
Richmond, VA
Print_ISBN :
1-4244-1029-0
Electronic_ISBN :
1-4244-1029-0
Type :
conf
DOI :
10.1109/SECON.2007.342957
Filename :
4147487
Link To Document :
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