Title :
A digital speech processor with lateral inhibition for artificial hearing
Author :
Özdamar, Ö ; Lopez, C.N. ; Delgado, R.E.
Author_Institution :
Dept. of Biomed. Eng., Miami Univ., Coral Gables, FL, USA
Abstract :
An 8-channel, real-time vibrotactile digital vocoder for artificial hearing is developed. The device is based on a TMS320C25 digital signal processor chip and uses the FFT spectral analysis technique. To improve tactile recognition, a lateral inhibition filter is implemented. Live and taped speech are used to evaluate the performance of the device. Preliminary results indicate that important speech features, such as formants and gaps, are transmitted efficiently by the system.<>
Keywords :
biomedical electronics; hearing; mechanoception; sensory aids; speech analysis and processing; vocoders; FFT spectral analysis technique; TMS320C25 digital signal processor chip; artificial hearing; formants; lateral inhibition; real-time vibrotactile digital vocoder; tactile recognition;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94679
