The main reason for using speech recognition in car is increasing safety and convenience. The driver should drive every dashboard design while his eyes are on the road and hands on the wheel .Reliable and useful speech functions can help drivers keep their concentration on the road and their passengers away from harm. Speech recognition technology offers the ideal complementary solution to more traditional visual and tactile man-machine interfaces, such as displays, buttons, and knobs. It offers a natural interface to access in-car navigation systems, media, information and remote communication functions. ASR GOOYESH is researching on this field of embedded speech technologies to address this rapidly expanding market.
Given these goals, it's not surprising to learn that voice dialing is the predominant catalyst for introducing voice recognition to cars. One of the most important applications is hands-free dialing, which is already mandated in many states in the US and countries worldwide. Taken a step further, you have the OnStar paradigm - a service designed to help drivers with everything from emergency assistance to directions. And finally, speech can be used to control the basic operations in the car - navigation control (e.g. destination specification), climate control, radio/CD controls - basically anything that would take your eyes off the road or hands from the wheel can be done with voice commands.