Robust LPC parameter estimation in standard CELP 4800 bit/s speech coder(Article)
- aInstitute of Applied Mathematics and Electronics, Kneza Milosa 37, 11000, Belgrade
- bUniversity of Belgrade, Faculty of Electrical Engineering, Bulevar Revolucije 73, 11000 Belgrade
Abstract
In order to decrease LPC spectral degradation in the USA FED STD 1016 4.8kbit/s CELP speech coder, application of a robust LPC parameter estimation is proposed. Robust LPC methods, based on Huber's M-estimation theory and a heuristic sample-selective two-stage robust procedure, are considered. Comparative experimental analysis is carried out based on the cepstral distance, as an objective spectral measure. Presented experimental analyses justify the use of the robust LPC methods in the standard CELP 4800 bit/s speech coder, showing that the best results are obtained by using the combined sample-selective robust LPC procedure. © IEE, 1998.
Indexed keywords
| Engineering controlled terms: | AlgorithmsHeuristic methodsParameter estimationPerformanceRobustness (control systems)Spectrum analysis |
|---|---|
| Engineering main heading: | Speech coding |
- ISSN: 1350245X
- CODEN: IVIPE
- Source Type: Journal
- Original language: English
- DOI: 10.1049/ip-vis:19981633
- Document Type: Article
- Publisher: Institution of Engineering and Technology
Markovic, M.; Institute of Applied Mathematics and Electronics, Kneza Milosa 37,
© Copyright 2018 Elsevier B.V., All rights reserved.
Cited by 4 documents
(2017) Robust Digital Processing of Speech Signals
(2013) IFAC Proceedings Volumes (IFAC-PapersOnline)
(2001) Journal of Engineering and Applied Science