Multiple-path noise cancellation

A communication device, such as a smartphone or tablet, includes a communication interface with noise cancellation logic. The noise cancellation logic includes a lead path and a reference path. A signal source provides a signal to the lead path and the references path. The signal is amplified along the lead path and the reference path. Distortion is imparted onto the signal during amplification on the lead path. A correction signal based on the difference between the amplified signal on the lead path and the amplified signal on the reference path is generated by the noise cancellation logic. The correction signal may reflect to distortion imparted during amplification on the lead path. The correction signal is differentially combined with the amplified signal on the lead path to attempt to remove the distortion and generate an output.