ˈɛkoʊ kˌænsɪlˈeɪʃən ɪz ɐ fˈɔːɹm ʌv ɐdˈæptɪv fˈiːdbæk kˌænsɪlˈeɪʃən jˈuːzd ɪn tˈɛlᵻfˌoʊnz ænd tˈɛlᵻkˌɑːnfɚɹənsɪŋ dɪvˈaɪsᵻz.
Echo cancellation is a form of adaptive feedback cancellation used in telephones and teleconferencing devices.