Paper Info
Title
A Recursive Wavelet-Based Strategy for Real-Time Cochlear Implant Speech Processing on PDA Platforms
Abstract
This paper presents a wavelet-based speech coding strategy for cochlear implants. In addition, it describes the real-time implementation of this strategy on a personal digital assistant (PDA) platform. Three wavelet packet decomposition tree structures are considered and their performance in terms of computational complexity, spectral leakage, fixed-point accuracy, and real-time processing are compared to other commonly used strategies in cochlear implants. A real-time mechanism is introduced for updating the wavelet coefficients recursively. It is shown that the proposed strategy achieves higher analysis rates than the existing strategies while being able to run in real time on a PDA platform. In addition, it is shown that this strategy leads to a lower amount of spectral leakage. The PDA implementation is made interactive to allow users to easily manipulate the parameters involved and study their effects.
Year
DOI
Venue
2010
10.1109/TBME.2010.2047644
Biomedical Engineering, IEEE Transactions
Keywords
Field
DocType
cochlear implants,medical computing,real-time systems,recursion method,recursive filters,speech processing,PDA platforms,personal digital assistant platform,real-time cochlear implant,recursive-wavelet computation,speech processing,wavelet packet decomposition tree structures,Cochlear implants,PDA platform,real-time implementation,recursive-wavelet computation
Signal processing,Speech processing,Speech coding,Computer science,Electronic engineering,Tree structure,Wavelet packet decomposition,Spectral leakage,Computational complexity theory,Wavelet
Journal
Volume
Issue
ISSN
57
8
0018-9294
Citations 
PageRank 
References 
11
1.03
8
Authors
3
Name
Order
Citations
PageRank
Vanishree Gopalakrishna1111.03
Nasser Kehtarnavaz2111.37
P. C. Loizou386371.05