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A digital speech processor with lateral inhibition for artificial hearing
Conference proceeding

A digital speech processor with lateral inhibition for artificial hearing

O Ozdamar, C.N Lopez and R.E Delgado
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp.1545-1546 vol.4
1988
DOI: https://doi.org/10.1109/IEMBS.1988.94679

Abstract

Auditory system Biomedical signal processing Digital signal processing chips Digital signal processors Displays IIR filters Signal processing Spectral analysis Speech processing Vocoders
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.< >

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