Perceptual Analysis MeasurementSystem (PAMS) is one of several methods for determining objective speech quality
telephony.The PAMS system functions similarly to Perceptual Speech Quality Measurement (PSQM), providing an objective and reproducible method for evaluating the quality of speech transmissions. The difference between the two methods lies in the psychoacoustic model and the prioritization
inthe Perceptual Analysis Measurement system.
Another method besides Perceptual Speech Quality Measurement (PSQM) is Perceptual Evaluation of Speech Quality (PESQ).