A radio controller using speech for the blind

Lin Chih-Lung, Won Pen-Men, Luh Jer-Junn, Lee Maw-Huei, Kuo Te-Son, Ru Cheng-Tao

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)429-433
Number of pages5
JournalCritical Reviews in Biomedical Engineering
Issue number3-4
Publication statusPublished - 2000

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering


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