FFT-based digital tactile vocoder system for real-time use

O. Özdamar; C. N. Lopez; D. K. Oller; R. E. Eilers; E. Miskiel; M. P. Lynch

doi:10.1007/BF02446132

FFT-based digital tactile vocoder system for real-time use

O. Özdamar, C. N. Lopez, D. K. Oller, R. E. Eilers, E. Miskiel, M. P. Lynch

Biomedical Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A microprocessor-based real-time digital vibrotactile vocoder system has been developed to train the deaf and for artificial hearing research. The system is composed of a microcomputer module with a digital signal processor interface units and an attenuator/driver circuit. Live or digitised (stored or synthetic) speech is presented to the skin spectrally through a belt housing eight or 16 vibrators. Speech is processed in real time using a fast Fourier transform. The system is also capable of presenting any arbitrary spatiotemporal pattern on the skin for artificial hearing experiments. A preliminary experiment with a deaf subject indicates that the system is potentially an effective device for artificial hearing.

Original language	English (US)
Pages (from-to)	213-218
Number of pages	6
Journal	Medical & Biological Engineering & Computing
Volume	30
Issue number	2
DOIs	https://doi.org/10.1007/BF02446132
State	Published - Mar 1 1992

Keywords

FFT
Hearing prosthesis
Speech processors
Tactile aids
Vocoders

ASJC Scopus subject areas

Health Information Management
Health Informatics
Biomedical Engineering
Computer Science Applications
Computational Theory and Mathematics

Access to Document

10.1007/BF02446132

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