1. A detection compensation system comprising: a base detection system to receive an acoustic signal and to output an uncompensated score indicative of an extent of match between at least one feature extracted from the acoustic signal and a target reference; and a compensation module to compensate for presence of distortion that impacts the uncompensated score, the compensation module using at least one processor to generate a compensated score based on the uncompensated score and a plurality of models, the plurality of models comprising a target model for the target reference and at least one non-target model for at least one non-target reference.