الفهرس 
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Abstract
Humans are capable of generating an unlimited variety of sounds and they are able to develop out of these sounds a remarkable way of communication which can effectively transfer ideas, feelings, and emotions, i.e., what we call ”speech”.
Speech signals carry information about the identity of the speaker and Ills maimer, mid about the eriviromimit. They also carry the message between the speaker and the listener. Speech signals perform. all of these tasks in Such all efficient way that no other way is comparable to speech. Speech has proved its superiority over other means of human
C0111111LI111cation; it enabics man to transmit and receive a tremendous amount of information, with the least possible effort.
It is the mayor goal of aUtOnlatic speech recognition to use this natural means Of communication to achieve direct man-machine interaction. The ability or things to speak and respond to human speech was, and still is, one of man’s dreams that he is working hard to achieve. Hundreds of man’s Imaginatioiis, during ages of his existence oil earth, that were considered impossible less than two centuries ago, have been realized in the last few decades. Aircraft and space shuttles realized imaginary birds, Dennis, and [lying carpets that call carry people from one place to another in no time. Telephones and television realized the so-called ”Magic Mirror” or ”Magic Crystal Ball” that enabled people to see and speak to each other front long distances.