DocumentCode
968752
Title
Effect of White-Noise Correction on Linear Predictive Coding
Author
Bäckström, Tom ; Magi, Carlo
Author_Institution
Lab. of Acoust. & Audio Signal Process., Helsinki Univ. of Technol.
Volume
14
Issue
2
fYear
2007
Firstpage
148
Lastpage
151
Abstract
White-noise correction is a technique used in speech coders using linear predictive coding (LPC). This technique generates an artificial noise-floor in order to avoid stability problems caused by numerical round-off errors. In this letter, we study the effect of white-noise correction on the roots of the LPC model. The results demonstrate in analytic form the relation between the noise floor level and the stability radius of the LPC model
Keywords
linear predictive coding; speech coding; vocoders; white noise; linear predictive coding; speech coder; white-noise correction; Autocorrelation; Linear predictive coding; Noise generators; Noise level; Numerical stability; Predictive models; Roundoff errors; Speech coding; Speech processing; Stability analysis; Autocorrelation function; linear predictive coding (LPC); numerical stability; speech coding; stability radius; white-noise correction;
fLanguage
English
Journal_Title
Signal Processing Letters, IEEE
Publisher
ieee
ISSN
1070-9908
Type
jour
DOI
10.1109/LSP.2006.881513
Filename
4064503
Link To Document