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Critical Reviews™ in Biomedical Engineering
SJR: 0.26 SNIP: 0.375 CiteScore™: 1.4

ISSN Imprimir: 0278-940X
ISSN En Línea: 1943-619X

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Critical Reviews™ in Biomedical Engineering

DOI: 10.1615/CritRevBiomedEng.v28.i34.130
pages 429-433

A Radio Controller Using Speech for the Blind

Chih-Lung Lin
Department of Electrical Engineering, National Taiwan Univesity, Taiwan, R.O.C.
Ren-Men Won
Department of Electrical Engineering, National Taiwan Univesity, Taiwan, R.O.C.
Jer-Junn Luh
Department of Electrical Engineering, National Taiwan Univesity, Taiwan, R.O.C.
Maw-Huel Lee
Department of Electrical Engineering, National Taiwan Univesity, Taiwan, R.O.C.
Te-Son Kuo
Department of Electrical Engineering, National Taiwan Univesity; research Center for Medical Engineering, National Taiwan University, Taiwan, R.O.C.
Cheng-Tao Ru
Department of Biomedical Engineering, National Defense Medical Center, P.O. Box 90048-511, Taipei, Taiwan, R.O.C.

SINOPSIS

This article describes a low-cost, portable real-time DSP-based speech controller system to provide radio interface control command applications for the blind. The system recognizes spoken Mandarin Chinese words on a DSP chip (TMS320C31) using a hidden Markov model. The function of the radio set, which includes a tuner, tape, and compact disc, were evaluated under both noisy and noiseless environments. Four subjects took part in the experiment and achieved 83 and 90% mean recognition rates under noisy and noiseless conditions, respectively. In addition, because this system is based on a DSP chip, it can easily be programmed to execute speaker-independent algorithms.


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