Title :
Introduction of a Novel Mapping for Cochlear Implant Speech Processing
Author :
Mehrzad, M. ; Abolhassani, M.D. ; Jafari, A.H. ; Alirezaie, J. ; Sangargir, M.
Abstract :
In this paper we present a novel method for stimulation of the electrodes in cochlear implants. The method is based on a wavelet packet decomposition strategy (db4, for 7 levels) which generates a series of channels with bandwidths exactly the same as Nucleus device. Finally, Performance of the recommended mapping is evaluated by estimating the correlation between reconstructed and original signals with/without the mapping for 10 sample sum of sinus signals of various frequencies, and real audio signals.
Keywords :
acoustic signal processing; biomedical electrodes; cochlear implants; medical signal processing; signal reconstruction; speech processing; channel bandwidths; channel series; cochlear implant speech processing mapping; electrode stimulation; nucleus device; original signals; real audio signals; reconstructed signals; sinus signals; various signal frequencies; wavelet packet decomposition strategy; Cochlea; Cochlear Implant; Speech Processing; WPD (Wavelet Packet Decomposition);
Conference_Titel :
Biomedical Engineering and Sciences (IECBES), 2012 IEEE EMBS Conference on
Conference_Location :
Langkawi
Print_ISBN :
978-1-4673-1664-4
DOI :
10.1109/IECBES.2012.6498010
