The SmartEP AAR addon module allows the user to fully define the timeline of events in regard to stimulation and acquisition; from mixing two stimuli in one ear, to inserting offsets in the presentation or acquisition. This Smart Note covers some basic concepts to help with understanding on how to use this module. AAR is commonly used to acquire complex ABR (cABR), frequency-following responses (FFR), Auditory Change Complex (ACC), and other non-standard auditory evoked potentials. The AAR addon for SmartEP is available for the Duet and USB hardware platforms.