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Title: An articulatory silicon vocal tract for speech and hearing prostheses
Authors: Wee, K.H. 
Turicchia, L.
Sarpeshkar, R.
Keywords: Analog bionic vocal tract
articulatory speech prosthesis
bioinspired circuits
speech coding
speech synthesis
Issue Date: Aug-2011
Citation: Wee, K.H., Turicchia, L., Sarpeshkar, R. (2011-08). An articulatory silicon vocal tract for speech and hearing prostheses. IEEE Transactions on Biomedical Circuits and Systems 5 (4) : 339-346. ScholarBank@NUS Repository.
Abstract: We describe the concept of a bioinspired feedback loop that combines a cochlear processor with an integrated-circuit vocal tract to create what we call a speech-locked loop. We discuss how the speech-locked loop can be applied in hearing prostheses, such as cochlear implants, to help improve speech recognition in noise. We also investigate speech-coding strategies for brain-machine-interface-based speech prostheses and present an articulatory speech-synthesis system by using an integrated-circuit vocal tract that models the human vocal tract. Our articulatory silicon vocal tract makes the transmission of low bit-rate speech-coding parameters feasible over a bandwidth-constrained body sensor network. To the best of our knowledge, this is the first articulatory speech-prosthesis system reported to date. We also present a speech-prosthesis simulator as a means to generate realistic articulatory parameter sequences. © 2011 IEEE.
Source Title: IEEE Transactions on Biomedical Circuits and Systems
ISSN: 19324545
DOI: 10.1109/TBCAS.2011.2159858
Appears in Collections:Staff Publications

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