Title :
Development of a speech processor for laboratory experiments with cochlear implant patients
Author :
Poroy, O. ; Loizou, P.C.
Author_Institution :
Dept. of Electr. Eng., Texas Univ., Dallas, TX, USA
Abstract :
A laboratory speech processor based on Motorola´s DSP56002 chip was developed for cochlear implant research. The hardware of the speech processor is described in detail and the safety issues associated with electrical stimulation of the auditory nerve are discussed. The speech processor is capable of providing high-rate stimulation to six electrodes using short biphasic pulses presented either simultaneously or in an interleaved fashion. Different speech processing algorithms including the continuous interleaved sampling (CIS) strategy were implemented in this processor and tested successfully with cochlear implant patients
Keywords :
biomedical electronics; digital signal processing chips; ear; hearing aids; medical signal processing; prosthetics; safety; signal sampling; speech processing; Motorola´s DSP56002 chip; auditory nerve; cochlear implant patients; cochlear prosthetics; continuous interleaved sampling strategy; electrical stimulation; hardware; high-rate stimulation; laboratory experiments; safety issues; short biphasic pulses; speech processing algorithms; speech processor; Cochlear implants; Computational Intelligence Society; Electrical safety; Electrical stimulation; Electrodes; Hardware; Laboratories; Sampling methods; Speech processing; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.860187
