DocumentCode
3079656
Title
On the importance of the excitation signal generation method in bandwidth extension of speech
Author
Rodriguez, Sergio A. ; Burt, Phillip M S
Author_Institution
Dept. Telecomm. & Control Eng., Sao Paulo Univ., Brazil
fYear
2005
fDate
2-4 Nov. 2005
Firstpage
430
Lastpage
435
Abstract
The purpose of this work is to show the importance of an adequate generation of the excitation signal for the performance of bandwidth extension algorithms for speech signals. Two previously proposed methods of obtaining the excitation signal are analyzed and, based on this analysis, a new method is proposed. The influence of each method in the quality of the reconstructed wideband speech signal is evaluated by quantitative parameters of speech quality.
Keywords
signal reconstruction; speech processing; bandwidth extension of speech; excitation signal generation method; extension algorithms; speech signals; wideband speech signal reconstruction; Bandwidth; Control engineering; Linear predictive coding; Narrowband; Signal analysis; Signal generators; Signal processing; Speech analysis; Vectors; Wideband;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Systems Design and Implementation, 2005. IEEE Workshop on
ISSN
1520-6130
Print_ISBN
0-7803-9333-3
Type
conf
DOI
10.1109/SIPS.2005.1579907
Filename
1579907
Link To Document