Title :
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
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;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location :
New York, NY
DOI :
10.1109/ICASSP.1988.197155
