A radio controller using speech for the blind.
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.
Lin
C L
CL
Department of Electrical Engineering, National Taiwan Univesity, Taipei, ROC.
Won
R M
RM
Luh
J J
JJ
Lee
M H
MH
Kuo
T S
TS
Ru
C T
CT
D000465:Algorithms; D001766:Blindness / Q000534:rehabilitation*; D003143:Communication Devices for People with Disabilities; D006801:Humans; D008390:Markov Chains; D011845:Radio; D012984:Software; D012985:Software Design; D013061:Speech Acoustics; D013067:Speech Perception; D013624:Taiwan