ABSTRACT

Typically done between audio components as a way to ascertain if one is superior to the other or if they are both essentially identical or different sounding. A refinement is the ABX testing device. The latter works by allowing known A and B components to be compared to an unknown X, which may be either A or B; depending on which listening trial is taking place, it allows for an easy-to-enforce, double-blind protocol to minimize participant prejudices.