An audio device (100; 200), comprising: a first microphone (101; 201) configured to produce a first signal; a loudspeaker assembly including a loudspeaker enclosure, a loudspeaker (122; 209) associated with the loudspeaker enclosure and a second microphone being a high-pressure microphone, wherein the second microphone is configured to produce a second signal based on acoustic output from the loudspeaker (122; 209), wherein the loudspeaker enclosure includes a back cavity and wherein the second microphone is positioned inside the back cavity within the interior of the loudspeaker enclosure and the first microphone (101; 201) is positioned outside of the back cavity; a canceller configured to receive the first signal and the second signal and configured to use the second signal as a reference signal canceller signal to reduce non-linear loudspeaker distortion as part of the first signal to produce an output signal; and an adaptive filter configured to filter the second signal to produce an echo estimate, wherein the canceller includes a summing circuit to subtract the echo estimate from the first signal, wherein the canceller further includes a first state with no signal being output from the loudspeaker (122; 209) and a no talk signal being sensed by the first microphone (101; 201), a second state with no signal being output from the loudspeaker (122; 209) and a talk signal is sensed by the first microphone (101; 201), a third state with the acoustic output being output from the loudspeaker (122; 209) and a talk signal being sensed by the first microphone (122; 209), and a fourth state with the acoustic output being output from the loudspeaker (122; 209) and the no talk signal being sensed by the first microphone (101; 201), and wherein the canceller is trained in the fourth state to correct for linear distortion and for nonlinear distortion. a first microphone (101; 201) configured to produce a first signal; a loudspeaker assembly including a loudspeaker enclosure, a loudspeaker (122; 209) associated with the loudspeaker enclosure and a second microphone being a high-pressure microphone, wherein the second microphone is configured to produce a second signal based on acoustic output from the loudspeaker (122; 209), wherein the loudspeaker enclosure includes a back cavity and wherein the second microphone is positioned inside the back cavity within the interior of the loudspeaker enclosure and the first microphone (101; 201) is positioned outside of the back cavity; a canceller configured to receive the first signal and the second signal and configured to use the second signal as a reference signal canceller signal to reduce non-linear loudspeaker distortion as part of the first signal to produce an output signal; and an adaptive filter configured to filter the second signal to produce an echo estimate, wherein the canceller includes a summing circuit to subtract the echo estimate from the first signal, wherein the canceller further includes a first state with no signal being output from the loudspeaker (122; 209) and a no talk signal being sensed by the first microphone (101; 201), a second state with no signal being output from the loudspeaker (122; 209) and a talk signal is sensed by the first microphone (101; 201), a third state with the acoustic output being output from the loudspeaker (122; 209) and a talk signal being sensed by the first microphone (122; 209), and a fourth state with the acoustic output being output from the loudspeaker (122; 209) and the no talk signal being sensed by the first microphone (101; 201), and wherein the canceller is trained in the fourth state to correct for linear distortion and for nonlinear distortion. <EOS>