The advanced communications world is worried talking more naturally by using hands free this help the human being to talk more confidently without holding any of the devices such as microphones or telephones. Acoustic echo cancellation and noise cancellers are quite interesting nowadays because they are required in many applications such as speakerphones and audio/video conferencing. This paper describes an alternative method of estimating signals corrupted by additive noise or interference. Acoustic echo cancellation problem was discussed out of different noise cancellation techniques by concerning different parameters with their comparative results .The resu