Design and evolution of a powerful pocket-sized DSP speech processing system for a cochlear implant and other hearing prosthesis applications

Author

Morris, L. Robert ; Barszczewski, Peter

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada

fYear

1988

fDate

11-14 Apr 1988

Firstpage

2516

Abstract

A real-time LPC (linear predictive coding) spectral envelope estimator and concurrent SIFT pitch extractor, implemented on a 14-chip TMS320C10-based board, have been migrated to a truly portable and pocketable three-chip, 0.5-W TMS320E17 system. The software system serves as a feature extraction front end for multichannel, cochlear implant systems or for hearing prostheses which map speech features to either visual displays or vibrotactile devices

Keywords

computerised signal processing; ear; filtering and prediction theory; handicapped aids; hearing aids; prosthetics; speech analysis and processing; 0.5 W; DSP speech processing system; TMS320C10-based board; TMS320E17 system; cochlear implant; concurrent SIFT pitch extractor; hearing prosthesis; linear predictive coding; real-time LPC; software system; spectral envelope estimator; vibrotactile devices; visual displays; Auditory system; Cochlear implants; Digital signal processing; Displays; Feature extraction; Linear predictive coding; Prosthetics; Real time systems; Software systems; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on

Conference_Location

New York, NY

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1988.197155

Filename

197155