ABSTRACT
Since a human usually communicates with each other by talking, it is very convenient if voice is used to command robots. A wheelchair is an important vehicle for the physically handicapped persons. However, for injured persons who suffer from spasms and paralysis of the extremities, joystick is a useful device as a manipulating tool. The recent developments in speech technology and biomedical engineering world have diverted the attention of researchers and technocrats to concentrate more on the design and development of simple, cost-effective, and technically practical solutions for the welfare and rehabilitation of a large section of the disabled community.
