A fast-search algorithm for the predictive split VQ of LPC parameters
- Title
- A fast-search algorithm for the predictive split VQ of LPC parameters
- Author
- 강상원
- Keywords
- Line spectral frequency (LSF); predictive split VQ; speech coding
- Issue Date
- 2001-05
- Publisher
- IEEE
- Citation
- IEEE Communications Letters, v. 5, issue. 5, page. 212-214
- Abstract
- In this letter, a fast-search method is introduced to reduce the searching range of
a codebook using the ordering property of LSF parameters. We apply the fast-search
method to the G. 723.1 coder with the predictive split VQ structure. Simulation
results indicate that using this fast-search method, the average searching range
of the codebook can be reduced by 20.1% without degradation of spectral distortion
(SD) and additional increases of memories. The reduction of 20.1% in the average
searching range results in the decrease of 19.1%, 20.1%, 19.4%, and 12.2% in
the number of additions, subtractions, multiplies, and comparisons, respectively.
- URI
- https://ieeexplore.ieee.org/document/922763?arnumber=922763&SID=EBSCO:edseeehttps://repository.hanyang.ac.kr/handle/20.500.11754/158474
- ISSN
- 1089-7798; 1558-2558; 2373-7891
- DOI
- 10.1109/4234.922763
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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