Wavelet Packet Filterbank for Speech Processing Strategies in Cochlear Implants

Nogueira W, Giese A, Edler B, Büchner A (2006)

Publication Type: Conference contribution

Publication year: 2006

Publisher: IEEE

Edited Volumes: Int. Conf. on Acoustics, Speech, and Signal Processing

City/Town: Toulouse, France

Pages Range: V121-V124

Conference Proceedings Title: Int. Conf. on Acoustics, Speech, and Signal Processing

ISBN: 142440469X

URI: http://www.tnt.uni-hannover.de/papers/data/nogueira-icassp-2006.pdf

DOI: 10.1109/ICASSP.2006.1661227

Abstract

Current speech processing strategies for cochlear implants use a filterbank which decomposes the audio signals into multiple frequency bands each associated with one electrode. Pitch perception with cochlear implants is related to the number of electrodes inserted in the cochlea and to the rate of stimulation of these electrodes. The filterbank should, therefore, be able to analyze the time-frequency features of the audio signals while also exploiting the time-frequency features of the implant. This study investigates the influence on speech intelligibility in cochlear implant users when filterbanks with different time-frequency resolutions are used. Three filterbanks, based on the structure of a wavelet packet transform but using different basis functions, were designed. The filterbanks were incorporated into a commercial speech processing strategy and were tested on device users in an acute study. © 2006 IEEE.

Authors with CRIS profile

Bernd Edler Lehrstuhl für Audiosignalanalyse (AudioLabs) (Stiftungslehrstuhl)

Involved external institutions

Medizinische Hochschule Hannover (MHH) / Hannover Medical School DE Germany (DE) Gottfried Wilhelm Leibniz Universität Hannover DE Germany (DE)

How to cite

APA:

Nogueira, W., Giese, A., Edler, B., & Büchner, A. (2006). Wavelet Packet Filterbank for Speech Processing Strategies in Cochlear Implants. In Int. Conf. on Acoustics, Speech, and Signal Processing (pp. V121-V124). Toulouse, France: IEEE.

MLA:

Nogueira, Waldo, et al. "Wavelet Packet Filterbank for Speech Processing Strategies in Cochlear Implants." Proceedings of the Int. Conf. on Acoustics, Speech, and Signal Processing Toulouse, France: IEEE, 2006. V121-V124.

BibTeX: Download