Zimtohrli: A New Psychoacoustic Perceptual Metric for Audio Compression Zimtohrli is a psychoacoustic perceptual metric that quantifies the human observable difference in two audio signals in the proximity of just-noticeable-differences. In this project we study the psychological and physiological responses associated with sound, to create a new more accurate model for measuring human-subjective similarity between sounds. The main focus will be on just-noticeable-difference to get most significa...