Perceptual Objective Listening Quality Analysis
Perceptual Objective Listening Quality Analysis (POLQA) was the working title of an ITU-T standard that covers a model to predict speech quality by means of analyzing digital speech signals. The model was standardized as Recommendation ITU-T P.863 (Perceptual objective listening quality assessment) in 2011.
Source: Wikipedia — Perceptual Objective Listening Quality Analysis (CC BY-SA 4.0)