Till here was about recording and training the software and these steps must be repeated for each of the word “Go, Left,Stop, Right and back. After creating data base for all five word command need to write a program for comparison and find
the word form library. The next step for recognition is finding the match signal. Finding the signal is done by Euclidean
distance formula and it is average of sum of all data of library and data of new spoken word. As it is explained all methods
are trying to remove noises and take the strong signals which is command signal but the main noise filters are Butterworth
filter and High pass butter worth filter, Butter worth filter is used in this project for make software more sensitive of human
voice.