A vehicle implemented noise-cancellation system , comprising: a noise-cancellation subsystem disposed in a vehicle, the noise-cancellation system comprising an adaptive filter being adjusted according to a reference signal and an error signal , the adaptive filter outputting a noise-cancellation signal , which, when transduced into a noise-cancellation audio signal by a speaker , cancels road noise within at least one zone within a cabin of the vehicle; and an entertainment audio monitoring subsystem, configured to: generate an entertainment audio monitor signal corresponding to entertainment audio originating from an entertainment audio system of the vehicle; characterized in that the entertainment audio monitoring subsystem is further configured to: disable adaptation of the adaptive filter when the amplitude of the entertainment audio monitor signal is greater than an adaptation freeze threshold ; subsequent to disabling adaptation of the adaptive filter, enable adaptation of the adaptive filter when the amplitude of the entertainment audio monitor signal is less than an adaptation enable threshold disable the noise-cancellation audio signal when the amplitude of the entertainment audio monitor signal is greater than a cancellation disable threshold ; and attenuate the noise-cancellation audio signal when the amplitude of the entertainment audio monitor signal is greater than a cancellation enable threshold , wherein the attenuation of the noise-cancellation audio signal increases relative to the amplitude of the entertainment audio monitor signal when the amplitude of the entertainment audio monitor signal is less than the cancellation disable threshold. a noise-cancellation subsystem disposed in a vehicle, the noise-cancellation system comprising an adaptive filter being adjusted according to a reference signal and an error signal , the adaptive filter outputting a noise-cancellation signal , which, when transduced into a noise-cancellation audio signal by a speaker , cancels road noise within at least one zone within a cabin of the vehicle; and an entertainment audio monitoring subsystem, configured to: generate an entertainment audio monitor signal corresponding to entertainment audio originating from an entertainment audio system of the vehicle; disable adaptation of the adaptive filter when the amplitude of the entertainment audio monitor signal is greater than an adaptation freeze threshold ; subsequent to disabling adaptation of the adaptive filter, enable adaptation of the adaptive filter when the amplitude of the entertainment audio monitor signal is less than an adaptation enable threshold disable the noise-cancellation audio signal when the amplitude of the entertainment audio monitor signal is greater than a cancellation disable threshold ; and attenuate the noise-cancellation audio signal when the amplitude of the entertainment audio monitor signal is greater than a cancellation enable threshold , wherein the attenuation of the noise-cancellation audio signal increases relative to the amplitude of the entertainment audio monitor signal when the amplitude of the entertainment audio monitor signal is less than the cancellation disable threshold. <EOS>