Fundamental Frequency Coding in NofM Strategies for Cochlear Implants
Büchner A, Edler B, Nogueira W (2005)
Publication Type: Conference contribution
Publication year: 2005
Publisher: Audio Engineering Society
Edited Volumes: 118th AES Convention
City/Town: Barcelona
Pages Range: Preprint 6515
Conference Proceedings Title: 118th AES Convention
ISBN: 9781604234848
Abstract
Current speech processing strategies for cochlear implants are based on decomposing the audio signals into multiple frequency bands, each one associated with one electrode. However, these bands are relatively wide to accurately encode tonal components of audio signals. To improve the encoding of tonal components and performance in cochlear implants, a new signal processing strategy has been developed. The technique is based on the principle of a so-called NofM strategy. These strategies stimulate fewer channels (N) per cycle than active electrodes (M) (NofM; N < M). However, the new strategy incorporates a fundamental frequency estimator which is used to emphasize the periodic structure of tonal components. The new technique was acutely tested on cochlear implant recipients. First intelligibility tests showed similar performance in speech perception between the new strategy and a standard NofM strategy.
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Germany (DE)How to cite
APA:
Büchner, A., Edler, B., & Nogueira, W. (2005). Fundamental Frequency Coding in NofM Strategies for Cochlear Implants. In 118th AES Convention (pp. Preprint 6515). Barcelona: Audio Engineering Society.
MLA:
Büchner, Andreas, Bernd Edler, and Waldo Nogueira. "Fundamental Frequency Coding in NofM Strategies for Cochlear Implants." Proceedings of the 118th AES Convention Barcelona: Audio Engineering Society, 2005. Preprint 6515.
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